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WO2014097409A1 - Rapid charger - Google Patents

Rapid charger Download PDF

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Publication number
WO2014097409A1
WO2014097409A1 PCT/JP2012/082841 JP2012082841W WO2014097409A1 WO 2014097409 A1 WO2014097409 A1 WO 2014097409A1 JP 2012082841 W JP2012082841 W JP 2012082841W WO 2014097409 A1 WO2014097409 A1 WO 2014097409A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
amount
storage battery
target
soct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/082841
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French (fr)
Japanese (ja)
Inventor
敬峰 向井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
JFE Engineering Corp
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Filing date
Publication date
Application filed by JFE Engineering Corp filed Critical JFE Engineering Corp
Priority to PCT/JP2012/082841 priority Critical patent/WO2014097409A1/en
Publication of WO2014097409A1 publication Critical patent/WO2014097409A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a quick charger.
  • Patent Document 1 includes a single quick charger for an electric vehicle and a quick charge distributor that distributes power from the quick charger for the electric vehicle to each of n charging adapters.
  • a quick charger for electric vehicles When charging an electric vehicle using a quick charger for electric vehicles, the total of the current values flowing through each charging adapter is maximized within the range of the maximum output current value of the quick charger for electric vehicles, A technique for charging a single electric vehicle is disclosed.
  • a quick charger having a power receiving means for receiving power from a commercial power supply, it is desired that the amount of power received through the power receiving means can be reduced.
  • An object of the present invention is to provide a quick charger that can reduce the amount of power received from a commercial power source.
  • the quick charger of the present invention includes a power receiving means connected to a commercial power source, a storage battery connected to the power receiving means, an output connected to the power receiving means and the storage battery, and outputs electric power for charging to an external device. And a target value for the amount of electricity stored in the storage battery varies according to the power received via the power receiving means.
  • the target value of the charged amount when the power received through the power receiving unit is small is larger than the target value of the stored amount when the power received through the power receiving unit is large. Is preferred.
  • the target value of the charged amount is a charging time per time for the external device, a maximum power output to the external device, and a power received via the power receiving means. Is preferably based on
  • the upper limit of the target value of the storage amount corresponds to a product of the maximum output of the storage battery and the charging time per time.
  • the electric power received through the power receiving means is based on an external command value, and the target value of the charged amount is further changed by a change range per time of the external command value. Is preferably based on
  • the target value of the storage amount of the storage battery changes according to the power received through the power receiving means. According to the quick charger according to the present invention, there is an effect that the amount of power received from the commercial power source can be reduced.
  • FIG. 1 is a schematic configuration diagram of a quick charger according to the embodiment.
  • FIG. 2 is a diagram illustrating a relationship between the received power and the target power storage amount according to the embodiment.
  • FIG. 3 is a time chart relating to charging and discharging of the quick charger according to the embodiment.
  • FIG. 4 is another diagram illustrating the relationship between the received power and the target power storage amount according to the embodiment.
  • FIG. 5 is a diagram illustrating a relationship between the received power and the target power storage amount according to the second modification of the embodiment.
  • FIG. 1 is a schematic configuration diagram of a quick charger according to the embodiment.
  • a quick charger 1-1 shown in FIG. 1 is connected to an AC / DC converter 6 as a power receiving means, an equipment storage battery 10 connected to the AC / DC converter 6, and an AC / DC converter 6 and the equipment storage battery 10. And a first DC / DC converter 7 as output means for outputting electric power for charging to an external device.
  • the quick charger 1-1 can function as a power storage facility that can store electric power received from a commercial power source. Further, the quick charger 1-1 can function as a power storage facility capable of appropriately discharging the power stored in the facility storage battery 10 to the store side via the AC / DC converter 6.
  • the quick charger 1-1 includes a bus 5, an AC / DC converter 6, a first DC / DC converter 7, a power conditioner 8, a second DC / DC converter 9, and a storage battery for equipment. 10, an output line 11, and a control device 20.
  • the distribution board 2 is connected to the commercial power line 1.
  • the distribution board 2 is connected to a store power line 3 and a charger power line 4. That is, the quick charger 1-1 is connected to the store via the charger power line 4, the distribution board 2, and the store power line 3.
  • the store power line 3 supplies power to a power consumption facility outside the quick charger 1-1, for example, a store such as a convenience store.
  • the quick charger 1-1 and the store are connected to a commercial power source through a common circuit including the distribution board 2.
  • the bus 5 is connected to the power supply line 4 for the charger via the AC / DC converter 6.
  • the AC / DC converter 6 converts the alternating current input from the power supply line 4 for the charger into a direct current and outputs it to the bus 5, and converts the direct current input from the bus 5 into an alternating current for the charger.
  • the power can be output to the power line 4.
  • the output line 11 is connected to the bus 5 via the first DC / DC converter 7.
  • the output line 11 is a power supply line that supplies electric power to a battery of an external device, in this embodiment, a battery mounted on an electric vehicle (EV).
  • the electric vehicle EV includes not only one having no power source other than the electric motor but also a hybrid vehicle having a power source such as an internal combustion engine in addition to the electric motor.
  • the first DC / DC converter 7 converts the direct current voltage of the bus 5 into a target voltage and outputs it to the output line 11.
  • a storage battery 10 for equipment is connected to the bus 5 via a second DC / DC converter 9.
  • the storage battery 10 for facilities can be charged and discharged.
  • the storage battery 10 for equipment of this embodiment is a lithium ion storage battery.
  • the effective capacity (storage capacity) of the facility storage battery 10 is Qb (kWh).
  • the effective capacity Qb is a capacity in a range used in the charge / discharge control among the total capacity of the facility storage battery 10. For example, when charge / discharge control is performed in the range of 10% to 90% of the total capacity of the storage battery 10 for facilities, the effective capacity Qb is a value of 80% of the total capacity.
  • the second DC / DC converter 9 converts the voltage of the direct current of the bus 5 into a target voltage and outputs it to the facility storage battery 10, and the target voltage of the direct current discharged from the facility storage battery 10 Can be output to the bus 5. Even if the voltage of the storage battery 10 for facilities changes according to the storage amount SOC, the second DC / DC converter 9 can suppress fluctuations in the voltage output to the bus 5. Therefore, the stability of the voltage supplied to the electric vehicle EV can be improved. In addition, since the second DC / DC converter 9 is arranged, the number of batteries of the storage battery 10 for facilities (the number of series connection) can be changed without reassembling the circuit.
  • a solar power generation device 12 is connected to the bus 5 via a power conditioner 8.
  • the solar power generation device 12 converts the light energy of sunlight into electrical energy and outputs a direct current.
  • the maximum value of the generated power is 20 kW.
  • the power conditioner 8 has a DC / DC converter and can execute MPPT (Maximum Power Point Tracking) control.
  • the MPPT control is control for causing the solar power generation device 12 to generate power at a voltage and current value that can maximize the output.
  • the current generated by the solar power generation device 12 is output to the bus 5 via the power conditioner 8.
  • the power conditioner 8 increases the output voltage to the bus 5 higher than the voltage of the storage battery 10 for facilities in the control of the input power Pg input from the solar power generator 12 to the bus 5. When the input power Pg becomes equal to the generated power of the solar power generation device 12, the balance is automatically made. Note that the power conditioner 8 controls the output voltage to the bus 5 to be equal to or lower than the voltage when the storage battery 10 for facilities is fully charged.
  • the control device 20 controls the quick charger 1-1.
  • the control device 20 of the present embodiment is connected to the AC / DC converter 6, the first DC / DC converter 7, the second DC / DC converter 9, the storage battery 10 for equipment, and the power conditioner 8, respectively. 6. Control the first DC / DC converter 7, the second DC / DC converter 9, the storage battery 10 for equipment, and the power conditioner 8.
  • the facility storage battery 10 has a monitoring device that monitors the temperature and voltage of the facility storage battery 10, the storage amount SOC (kWh), the current value to be charged and discharged, and the like.
  • the control device 20 acquires information related to the facility storage battery 10 from the monitoring device for the facility storage battery 10.
  • the storage amount SOC is calculated in the range of the effective capacity Qb. For example, when charge / discharge control is performed within the range of 10% to 90% of the total capacity of the storage battery 10 for facilities, the storage amount SOC is calculated by setting the remaining amount of 10% of the total capacity to 0 (kWh) of the storage amount SOC. Is done.
  • the storage rate (%) of the facility storage battery 10 is such that the remaining amount of 10% of the total capacity of the facility storage battery 10 is 0% of the storage rate, and the remaining amount of 90% of the total capacity is 100% of the storage rate. It becomes.
  • Control device 20 determines transmission / reception power Pqc (kW) that is power received from charger power supply line 4 via AC / DC converter 6 or discharged to charger power supply line 4 via AC / DC converter 6. .
  • Control device 20 outputs a command value of voltage and current to be output to bus 5 or a command value of voltage and current to be discharged to charger power supply line 4 based on transmission / reception power Pqc.
  • the AC / DC converter 6 controls the voltage and current output to the bus 5 or the voltage and current discharged to the charger power supply line 4 based on the command value received from the control device 20.
  • a current value input / output via the AC / DC converter 6 is referred to as an exchange current value Iqc.
  • the control device 20 sets the output power Po (kW) to be supplied to the electric vehicle EV in response to a charging request from the electric vehicle EV connected to the output line 11.
  • the maximum output power Pomax which is the maximum value of the output power Po, is 50 kW, but it may be any value.
  • the control device 20 outputs to the first DC / DC converter 7 a voltage and current command value to be output to the output line 11 based on a request from the electric vehicle EV.
  • the first DC / DC converter 7 controls the voltage and current output from the bus 5 to the output line 11 based on the command value from the control device 20.
  • the control device 20 acquires input power Pg (voltage and current) generated by the solar power generation device 12 and input to the bus 5 from the power conditioner 8.
  • the control device 20 can instruct the power conditioner 8 to shut off the solar power generation device 12 and the bus 5 and set the input power Pg to zero.
  • the control device 20 determines the discharge power Pb of the facility storage battery 10 and outputs a voltage and current command value output from the facility storage battery 10 to the bus 5 based on the discharge power Pb, or outputs from the bus 5 to the facility storage battery 10.
  • the voltage and current command values are output to the second DC / DC converter 9.
  • the second DC / DC converter 9 controls the voltage and current output from the facility storage battery 10 to the bus 5 or the voltage and current output from the bus 5 to the facility storage battery 10 based on the command value from the control device 20. To do.
  • the demand controller 15 is connected to the control device 20.
  • the demand controller 15 is an external control device that controls the power-receiving demand by combining the power consumption equipment connected to the store power line 3 and the quick charger 1-1.
  • the demand controller 15 detects the power received from the commercial power supply line 1 via the distribution board 2 and calculates the amount of power received per predetermined time.
  • the demand controller 15 outputs a command value (allowable maximum power) indicating the maximum value of power that can be received by the quick charger 1-1 based on the calculated power amount.
  • the quick charger 1-1 determines the transfer power Pqc based on the allowable maximum power output from the demand controller 15.
  • the power received from the commercial power supply via the AC / DC converter 6 is set to be equal to or lower than the allowable maximum power.
  • the control device 20 receives the power via the AC / DC converter 6 with the transmission / reception power Pqc as the allowable maximum power.
  • the control device 20 causes the facility storage battery 10 to discharge when the exchanged power Pqc is insufficient with respect to the output power Po.
  • control device 20 outputs at least a part of the output power Po that is insufficient with the exchanged power Pqc from the input power Pg from the solar power generation device 12 and discharges it to the facility storage battery 10 when the power is insufficient. It can also be made to do.
  • the amount of power received from a commercial power source can be reduced.
  • the amount of power received can be reduced during the daytime when the unit price of the power rate is relatively high or during peak hours when the power demand is high.
  • the target value of the storage amount SOC of the facility storage battery 10 changes according to the power received via the AC / DC converter 6 as the power receiving means.
  • the target value of the stored electricity amount SOC can be appropriately determined according to the received power, and the received power amount can be reduced.
  • the target value of the storage amount SOC is the upper limit of the storage amount SOC when the facility storage battery 10 is stored. Therefore, even if the charged amount SOC exceeds the target value, it is not necessary to reduce the charged amount SOC to the target value.
  • FIG. 2 is a diagram illustrating a relationship between the received power and the target power storage amount according to the embodiment.
  • the horizontal axis indicates the received power received from the commercial power supply via the AC / DC converter 6, and the vertical axis indicates the target value of the storage amount SOC (hereinafter referred to as “target storage amount SOCt”).
  • the received power on the horizontal axis may be the power actually received by the quick charger 1-1 or the command value from the demand controller 15, that is, the allowable maximum power.
  • FIG. 2 shows the relationship between the received power and the target charged amount SOCt when the maximum output of the facility storage battery 10 is equal to or greater than the maximum output power Pomax for the electric vehicle EV.
  • the maximum output power Pomax is 50 kW. Therefore, when the maximum output of the facility storage battery 10 is 50 kW or more, the target storage amount SOCt is determined based on the correspondence shown in FIG.
  • the target storage amount SOCt when the received power is small is larger than the target storage amount SOCt when the received power is large. Therefore, when large electric power can be received from the commercial power source, the charged amount SOC can be kept low, and the received power amount from the commercial power source can be suppressed.
  • the relationship between the received power and the target charged amount SOCt is linear, and the target charged amount SOCt decreases as the received power increases.
  • the target charged amount SOCt is determined by the charging time Tchg per time for an external device, the maximum power output to the external device (maximum output power Pomax), and AC / Based on the power received via the DC converter 6.
  • the target power storage amount SOCt can continue to output the maximum output power Pomax to the electric vehicle EV by the received power from the commercial power source and the discharge power Pb of the facility storage battery 10 during one charging time Tchg. It is stipulated in.
  • the target storage amount SOCt is determined so that, for example, the charging of the electric vehicle EV can be completed by the discharge power Pb of the facility storage battery 10 even when the received power is 0 kW.
  • the charging time Tchg (maximum charging time) per electric vehicle EV is 30 min (0.5 h).
  • the storage amount SOC needs to be 25 kWh.
  • the target storage amount SOCt when the received power is 0 kW is 25 kWh. If the storage amount SOC is 25 kWh at the start of charging of the electric vehicle EV, the charging of the electric vehicle EV can be completed by the facility storage battery 10 even if the received power is 0 kW.
  • the target storage amount SOCt when the received power is 50 kW or more is 0 kWh. If the received power is 50 kW or more, it is possible to complete charging of the electric vehicle EV with the received power even if the storage amount SOC of the facility storage battery 10 is 0 kWh. If the storage battery 10 for facilities is stored based on the target storage amount SOCt shown in FIG. 2, the output power Po of 50 kW is continuously supplied to the electric vehicle EV during the charging time Tchg regardless of the received power. be able to.
  • the target charged amount SOCt is set to a minimum value that can complete the charging of the electric vehicle EV. Therefore, the amount of power received from the commercial power source can be minimized.
  • FIG. 3 is a time chart relating to charging / discharging of the quick charger 1-1 according to the present embodiment.
  • the horizontal axis indicates time
  • the vertical axis indicates the storage amount SOC.
  • the electric vehicle EV is charged between time t1 and t2 (first time), between time t3 and t4 (second time), and between time t5 and t6 (third time). Done.
  • the storage amount SOC after the first charge and the second charge is larger than the target storage amount SOCt, respectively. Accordingly, the storage of the facility storage battery 10 is not performed after the charging is completed.
  • the storage amount SOC after the third charge is less than the target storage amount SOCt.
  • the electrical storage with respect to the storage battery 10 for facilities is started from the time t6.
  • the storage amount SOC recovers to the target storage amount SOCt at time t7, the power reception from the commercial power supply is ended, and the storage of the facility storage battery 10 is ended. Thereafter, when the storage amount SOC falls below the target storage amount SOCt, the facility storage battery 10 is charged.
  • the storage amount SOC of the facility storage battery 10 can be kept to the minimum necessary for completing the charging of the electric vehicle EV. It is possible to suppress the amount of power received from the.
  • the method for determining the target charged amount SOCt may be performed constantly or when a predetermined condition is satisfied.
  • the method for determining the target storage amount SOCt as described above may be performed during a predetermined period or a predetermined time period.
  • the predetermined time zone can be, for example, a time zone in which the unit price of the power rate is relatively high in one day, for example, daytime time.
  • the predetermined time zone may be a time zone (heavy load time, peak time) when power demand is large.
  • the predetermined period can be, for example, summer.
  • the target power storage amount SOCt during the time period excluding the predetermined time period may be different from the target power storage amount SOCt during the predetermined time period.
  • the target power storage amount SOCt in the time zone excluding the predetermined time zone is desirably equal to or greater than the target power storage amount SOCt in the predetermined time zone, and is preferably larger than the target power storage amount SOCt in the predetermined time zone. In this way, in preparation for the discharge in the next predetermined time zone, the charged amount SOC can be sufficiently recovered in the time zone excluding the predetermined time zone.
  • the target power storage amount SOCt when the received power is large may be made larger than the target power storage amount SOCt when the received power is low, contrary to the predetermined time zone.
  • the target power storage amount SOCt when the power reception amount is 0 kW may be common between the predetermined time zone and a time zone other than the predetermined time zone.
  • the target power storage amount SOCt when the received power in the time zone other than the predetermined time zone is 0 kW may be 25 kWh.
  • the relationship between the target power storage amount SOCt and the received power in a time zone other than the predetermined time zone can be linear, for example.
  • the target storage amount SOCt in the time period excluding the predetermined time period may be a constant value, for example, the maximum value (storage rate 100%) of the storage amount SOC.
  • the facility storage battery 10 can be charged to the maximum extent in preparation for discharge in the next predetermined time period.
  • FIG. 4 is another diagram showing the relationship between the received power and the target charged amount SOCt according to the embodiment.
  • FIG. 4 shows the relationship between the received power and the target charged amount SOCt when the maximum output of the facility storage battery 10 is less than the maximum output power Pomax for the electric vehicle EV.
  • the maximum value of the target storage amount SOCt is the maximum amount of power output from the facility storage battery 10 in one charge time Tchg.
  • the relationship between the received power and the target storage amount SOCt shown in FIG. 4 is that the maximum output of the facility storage battery 10 is 25 kW and the charging time Tchg is 0.5 h, and the maximum value of the target storage amount SOCt is 12.5 kWh. It is.
  • the upper limit of the target storage amount SOCt corresponds to the product of the maximum output of the facility storage battery 10 and the charging time Tchg per time.
  • the target storage amount SOCt is constant at the maximum value of 25 kWh.
  • the target charged amount SOCt is variable.
  • the target charged amount SOCt when the received power is small is larger than the target charged amount SOCt when the received power is large.
  • the relationship between the received power and the target charged amount SOCt is linear in the received power region greater than 25 kW.
  • the storage when storing in the facility storage battery 10, the storage is stopped when the storage amount SOC reaches the target storage amount SOCt.
  • the storage using the input power Pg from the solar power generation device 12 is not performed. It may be performed separately. That is, the target storage amount SOCt can be the upper limit of the storage amount SOC when the facility storage battery 10 is stored by receiving power from a commercial power source.
  • Power storage using the input power Pg from the solar power generation device 12 may be executed regardless of the target power storage amount SOCt. For example, power may be stored using the input power Pg up to the maximum power storage amount SOC.
  • the relationship between the received power and the target charged amount SOCt when the target charged amount SOCt changes according to the received power is not limited to linear.
  • the target storage amount SOCt may change stepwise with respect to a change in received power.
  • the target power storage amount SOCt may be decreased by a certain amount every time the received power increases by a certain amount.
  • FIG. 5 is a diagram illustrating a relationship between the received power and the target charged amount SOCt according to the second modification of the embodiment.
  • the target charged amount SOCt is indicated by a white circle ( ⁇ ).
  • the solid line shown in FIG. 5 is the minimum storage amount SOC required to complete the charging of the electric vehicle EV when the received power is constant.
  • a predetermined margin hereinafter referred to as “addition amount ⁇ S” is added to the minimum required storage amount SOC in preparation for fluctuations in the maximum allowable power to determine the target storage amount SOCt. ing.
  • the allowable maximum power output from the demand controller 15 can fluctuate according to the detected amount of power received. Even when the allowable maximum power is reduced, it is preferable that the charging of the electric vehicle EV can be completed in one charging time Tchg.
  • the target power storage amount SOCt includes the addition amount ⁇ S.
  • the addition amount ⁇ S may be a constant value or may be variable according to the received power.
  • the addition amount ⁇ S may be a predetermined ratio (for example, 5% or 10%) with respect to the minimum required storage amount SOC (value on the straight line in FIG. 5) determined from the current received power, for example. Good.
  • the addition amount ⁇ S when the received power is large may be smaller than the addition amount ⁇ S when the received power is small.
  • the shortage of the output power Po when charging the electric vehicle EV is suppressed because the target charged amount SOCt includes the added amount ⁇ S.
  • charging can be completed even when the allowable maximum power is reduced during charging of the electric vehicle EV.
  • the time interval at which the demand controller 15 changes the allowable maximum power is preferably equal to or longer than the charging time Tchg. In this way, even if the allowable maximum power changes during charging of the electric vehicle EV, the number of times is at most one. Therefore, it is possible to secure a minimum required storage amount SOC in preparation for a decrease in the allowable maximum power, and to suppress an excessive storage in the facility storage battery 10 and an increase in the amount of received power. .
  • the target of charging by the quick charger 1-1 is the electric vehicle EV.
  • the present invention is not limited to this, and other external devices may be charged.
  • the quick charger 1-1 may be one that does not receive power from an external power generator such as the solar power generator 12.
  • the quick charger 1-1 may receive power from a power generation device other than the solar power generation device 12, for example, a wind power generation device.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

A rapid charger, comprising: a power reception means connected to a commercial power supply; a storage battery connected to the power reception means; and an output means which is connected to the power reception means and the storage battery, and which outputs power for charging to an external device. The storage amount target value (SOCt) for the storage battery varies depending on the power received via the power reception means. The storage amount target value (SOCt), when the amount of power received via the power reception means is small, is preferably greater than the storage amount target value (SOCt) when the amount of power received via the power reception means is large.

Description

急速充電噚Quick charger

　本発明は、急速充電噚に関する。 The present invention relates to a quick charger.

　埓来、急速充電噚がある。䟋えば、特蚱文献には、台の電気自動車甚急速充電噚ず、その電気自動車甚急速充電噚からの電力を個の各充電アダプタに分配するようにした急速充電ディストリビュヌタヌずを備えた電気自動車甚急速充電装眮を甚いお電気自動車を充電するに際しお、各充電アダプタに流れる電流倀の合蚈が電気自動車甚急速充電噚の最倧出力電流倀以䞋の範囲で最倧ずなるようにしながら、同時に耇数台の電気自動車の充電を行うようにする技術が開瀺されおいる。 Conventionally, there is a quick charger. For example, Patent Document 1 includes a single quick charger for an electric vehicle and a quick charge distributor that distributes power from the quick charger for the electric vehicle to each of n charging adapters. When charging an electric vehicle using a quick charger for electric vehicles, the total of the current values flowing through each charging adapter is maximized within the range of the maximum output current value of the quick charger for electric vehicles, A technique for charging a single electric vehicle is disclosed.

特開号公報JP 2011-130593 A

　商甚電源から受電する受電手段を有する急速充電噚においお、受電手段を介しお受電する電力量を䜎枛できるこずが望たれおいる。 In a quick charger having a power receiving means for receiving power from a commercial power supply, it is desired that the amount of power received through the power receiving means can be reduced.

　本発明の目的は、商甚電源から受電する電力量を䜎枛するこずができる急速充電噚を提䟛するこずである。 An object of the present invention is to provide a quick charger that can reduce the amount of power received from a commercial power source.

　本発明の急速充電噚は、商甚電源ず接続された受電手段ず、前蚘受電手段ず接続された蓄電池ず、前蚘受電手段および前蚘蓄電池ず接続され、倖郚の装眮に察する充電甚の電力を出力する出力手段ず、を備え、前蚘蓄電池の蓄電量の目暙倀が、前蚘受電手段を介しお受電する電力に応じお倉化するこずを特城ずする。 The quick charger of the present invention includes a power receiving means connected to a commercial power source, a storage battery connected to the power receiving means, an output connected to the power receiving means and the storage battery, and outputs electric power for charging to an external device. And a target value for the amount of electricity stored in the storage battery varies according to the power received via the power receiving means.

　䞊蚘急速充電噚においお、前蚘受電手段を介しお受電する電力が小さい堎合の前蚘蓄電量の目暙倀は、前蚘受電手段を介しお受電する電力が倧きい堎合の前蚘蓄電量の目暙倀よりも倧きいこずが奜たしい。 In the quick charger, the target value of the charged amount when the power received through the power receiving unit is small is larger than the target value of the stored amount when the power received through the power receiving unit is large. Is preferred.

　䞊蚘急速充電噚においお、前蚘蓄電量の目暙倀は、前蚘倖郚の装眮に察する回圓たりの充電時間ず、前蚘倖郚の装眮に察しお出力する最倧電力ず、前蚘受電手段を介しお受電する電力ずに基づくこずが奜たしい。 In the quick charger, the target value of the charged amount is a charging time per time for the external device, a maximum power output to the external device, and a power received via the power receiving means. Is preferably based on

　䞊蚘急速充電噚においお、前蚘蓄電量の目暙倀の䞊限は、前蚘蓄電池の最倧出力ず前蚘回圓たりの充電時間ずの積に盞圓するこずが奜たしい。 In the quick charger, it is preferable that the upper limit of the target value of the storage amount corresponds to a product of the maximum output of the storage battery and the charging time per time.

　䞊蚘急速充電噚においお、前蚘受電手段を介しお受電する電力は、倖郚からの指什倀に基づいおおり、前蚘蓄電量の目暙倀は、曎に、前蚘倖郚からの指什倀の回圓たりの倉曎幅に基づくこずが奜たしい。 In the quick charger, the electric power received through the power receiving means is based on an external command value, and the target value of the charged amount is further changed by a change range per time of the external command value. Is preferably based on

　本発明に係る急速充電噚は、蓄電池の蓄電量の目暙倀が、受電手段を介しお受電する電力に応じお倉化する。本発明に係る急速充電噚によれば、商甚電源から受電する電力量を䜎枛するこずができるずいう効果を奏する。 In the quick charger according to the present invention, the target value of the storage amount of the storage battery changes according to the power received through the power receiving means. According to the quick charger according to the present invention, there is an effect that the amount of power received from the commercial power source can be reduced.

図は、実斜圢態に係る急速充電噚の抂略構成図である。FIG. 1 is a schematic configuration diagram of a quick charger according to the embodiment. 図は、実斜圢態に係る受電電力ず目暙蓄電量ずの関係を瀺す図である。FIG. 2 is a diagram illustrating a relationship between the received power and the target power storage amount according to the embodiment. 図は、実斜圢態の急速充電噚の充攟電に係るタむムチャヌトである。FIG. 3 is a time chart relating to charging and discharging of the quick charger according to the embodiment. 図は、実斜圢態に係る受電電力ず目暙蓄電量ずの関係を瀺す他の図である。FIG. 4 is another diagram illustrating the relationship between the received power and the target power storage amount according to the embodiment. 図は、実斜圢態の第倉圢䟋に係る受電電力ず目暙蓄電量ずの関係を瀺す図である。FIG. 5 is a diagram illustrating a relationship between the received power and the target power storage amount according to the second modification of the embodiment.

　以䞋に、本発明の実斜圢態に係る急速充電噚に぀き図面を参照し぀぀詳现に説明する。なお、この実斜圢態によりこの発明が限定されるものではない。たた、䞋蚘の実斜圢態における構成芁玠には、圓業者が容易に想定できるものあるいは実質的に同䞀のものが含たれる。 Hereinafter, a quick charger according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

実斜圢態
　図から図を参照しお、実斜圢態に぀いお説明する。本実斜圢態は、急速充電噚に関する。図は、実斜圢態に係る急速充電噚の抂略構成図である。 [Embodiment]
The embodiment will be described with reference to FIGS. 1 to 4. The present embodiment relates to a quick charger. FIG. 1 is a schematic configuration diagram of a quick charger according to the embodiment.

　図に瀺す急速充電噚は、受電手段ずしおのコンバヌタず、コンバヌタず接続された蚭備甚蓄電池ず、コンバヌタおよび蚭備甚蓄電池ず接続され、倖郚の装眮に察しお充電甚の電力を出力する出力手段ずしおの第䞀コンバヌタずを含んで構成されおいる。急速充電噚は、商甚電源から受電した電力を蓄電するこずができる蓄電蚭備ずしお機胜するこずができる。たた、急速充電噚は、蚭備甚蓄電池に蓄電した電力をコンバヌタを介しお適宜店舗偎に攟電するこずが可胜な蓄電蚭備ずしお機胜するこずができる。 A quick charger 1-1 shown in FIG. 1 is connected to an AC / DC converter 6 as a power receiving means, an equipment storage battery 10 connected to the AC / DC converter 6, and an AC / DC converter 6 and the equipment storage battery 10. And a first DC / DC converter 7 as output means for outputting electric power for charging to an external device. The quick charger 1-1 can function as a power storage facility that can store electric power received from a commercial power source. Further, the quick charger 1-1 can function as a power storage facility capable of appropriately discharging the power stored in the facility storage battery 10 to the store side via the AC / DC converter 6.

　本実斜圢態に係る急速充電噚は、バスず、コンバヌタず、第䞀コンバヌタず、パワヌコンディショナヌず、第二コンバヌタず、蚭備甚蓄電池ず、出力ラむンず、制埡装眮ずを含んで構成されおいる。 The quick charger 1-1 according to the present embodiment includes a bus 5, an AC / DC converter 6, a first DC / DC converter 7, a power conditioner 8, a second DC / DC converter 9, and a storage battery for equipment. 10, an output line 11, and a control device 20.

　分電盀は、商甚電源ラむンに接続されおいる。分電盀には、店舗甚電源ラむンおよび充電噚甚電源ラむンが接続されおいる。぀たり、急速充電噚は、充電噚甚電源ラむン、分電盀および店舗甚電源ラむンを介しお店舗ず接続されおいる。店舗甚電源ラむンは、急速充電噚の倖郚の電力消費蚭備、䟋えばコンビニ゚ンスストア等の店舗に電力を䟛絊する。本実斜圢態では、急速充電噚ず店舗ずは、分電盀を含む共通の回路を介しお商甚電源に接続されおいる。 The distribution board 2 is connected to the commercial power line 1. The distribution board 2 is connected to a store power line 3 and a charger power line 4. That is, the quick charger 1-1 is connected to the store via the charger power line 4, the distribution board 2, and the store power line 3. The store power line 3 supplies power to a power consumption facility outside the quick charger 1-1, for example, a store such as a convenience store. In the present embodiment, the quick charger 1-1 and the store are connected to a commercial power source through a common circuit including the distribution board 2.

　バスは、コンバヌタを介しお充電噚甚電源ラむンず接続されおいる。コンバヌタは、充電噚甚電源ラむンから入力される亀流電流を盎流電流に倉換しおバスに出力するこず、およびバスから入力される盎流電流を亀流電流に倉換しお充電噚甚電源ラむンに出力するこずができる。 The bus 5 is connected to the power supply line 4 for the charger via the AC / DC converter 6. The AC / DC converter 6 converts the alternating current input from the power supply line 4 for the charger into a direct current and outputs it to the bus 5, and converts the direct current input from the bus 5 into an alternating current for the charger. The power can be output to the power line 4.

　バスには、第䞀コンバヌタを介しお出力ラむンが接続されおいる。出力ラむンは、倖郚の装眮の電池、本実斜圢態では電気自動車に搭茉された電池に察しお電力を䟛絊する電源ラむンである。ここで、電気自動車は、電動機以倖の動力源を有しないものだけでなく、電動機に加えお内燃機関等の動力源を有するハむブリッド自動車も含む。第䞀コンバヌタは、バスの盎流電流の電圧を目暙ずする電圧に倉換しお出力ラむンに出力する。 The output line 11 is connected to the bus 5 via the first DC / DC converter 7. The output line 11 is a power supply line that supplies electric power to a battery of an external device, in this embodiment, a battery mounted on an electric vehicle (EV). Here, the electric vehicle EV includes not only one having no power source other than the electric motor but also a hybrid vehicle having a power source such as an internal combustion engine in addition to the electric motor. The first DC / DC converter 7 converts the direct current voltage of the bus 5 into a target voltage and outputs it to the output line 11.

　バスには、第二コンバヌタを介しお蚭備甚蓄電池が接続されおいる。蚭備甚蓄電池は、充電および攟電が可胜なものである。本実斜圢態の蚭備甚蓄電池は、リチりムむオン蓄電池である。蚭備甚蓄電池の有効容量蓄電容量は、である。なお、有効容量は、蚭備甚蓄電池の党容量のうち、充攟電制埡においお䜿甚される範囲の容量である。䟋えば、蚭備甚蓄電池の党容量のからの範囲で充攟電制埡を行う堎合、有効容量は、党容量のの倀である。 A storage battery 10 for equipment is connected to the bus 5 via a second DC / DC converter 9. The storage battery 10 for facilities can be charged and discharged. The storage battery 10 for equipment of this embodiment is a lithium ion storage battery. The effective capacity (storage capacity) of the facility storage battery 10 is Qb (kWh). The effective capacity Qb is a capacity in a range used in the charge / discharge control among the total capacity of the facility storage battery 10. For example, when charge / discharge control is performed in the range of 10% to 90% of the total capacity of the storage battery 10 for facilities, the effective capacity Qb is a value of 80% of the total capacity.

　第二コンバヌタは、バスの盎流電流の電圧を目暙ずする電圧に倉換しお蚭備甚蓄電池に出力するこず、および蚭備甚蓄電池から攟電される盎流電流を目暙ずする電圧に倉換しおバスに出力するこずが可胜である。第二コンバヌタは、蓄電量に応じお蚭備甚蓄電池の電圧が倉化したずしおも、バスに出力する電圧の倉動を抑制するこずができる。埓っお、電気自動車に察しお䟛絊する電圧の安定性を向䞊させるこずができる。たた、第二コンバヌタが配眮されおいるこずで、回路の組み盎しをするこずなく蚭備甚蓄電池のバッテリの個数盎列぀なぎの個数を倉曎するこずができる。 The second DC / DC converter 9 converts the voltage of the direct current of the bus 5 into a target voltage and outputs it to the facility storage battery 10, and the target voltage of the direct current discharged from the facility storage battery 10 Can be output to the bus 5. Even if the voltage of the storage battery 10 for facilities changes according to the storage amount SOC, the second DC / DC converter 9 can suppress fluctuations in the voltage output to the bus 5. Therefore, the stability of the voltage supplied to the electric vehicle EV can be improved. In addition, since the second DC / DC converter 9 is arranged, the number of batteries of the storage battery 10 for facilities (the number of series connection) can be changed without reassembling the circuit.

　バスには、パワヌコンディショナヌを介しお倪陜光発電装眮が接続されおいる。倪陜光発電装眮は、倪陜光の光゚ネルギヌを電気゚ネルギヌに倉換しお盎流電流を出力する。本実斜圢態の倪陜光発電装眮は、発電電力の最倧倀がである。パワヌコンディショナヌは、コンバヌタを有しおおり、Maximum　Power　Point　Tracking制埡を実行するこずができる。制埡は、出力を最倧化できる電圧および電流倀で倪陜光発電装眮に発電を行わせる制埡である。倪陜光発電装眮により発電された電流は、パワヌコンディショナヌを介しおバスに出力される。 A solar power generation device 12 is connected to the bus 5 via a power conditioner 8. The solar power generation device 12 converts the light energy of sunlight into electrical energy and outputs a direct current. In the solar power generation device 12 of the present embodiment, the maximum value of the generated power is 20 kW. The power conditioner 8 has a DC / DC converter and can execute MPPT (Maximum Power Point Tracking) control. The MPPT control is control for causing the solar power generation device 12 to generate power at a voltage and current value that can maximize the output. The current generated by the solar power generation device 12 is output to the bus 5 via the power conditioner 8.

　パワヌコンディショナヌは、倪陜光発電装眮からバスに入力する入力電力の制埡においお、バスぞの出力電圧を蚭備甚蓄電池の電圧よりも高めおいく。入力電力が倪陜光発電装眮の発電電力に等しくなるず、自動的にバランスする。なお、パワヌコンディショナヌは、バスぞの出力電圧を蚭備甚蓄電池の満充電時の電圧以䞋に制埡する。 The power conditioner 8 increases the output voltage to the bus 5 higher than the voltage of the storage battery 10 for facilities in the control of the input power Pg input from the solar power generator 12 to the bus 5. When the input power Pg becomes equal to the generated power of the solar power generation device 12, the balance is automatically made. Note that the power conditioner 8 controls the output voltage to the bus 5 to be equal to or lower than the voltage when the storage battery 10 for facilities is fully charged.

　制埡装眮は、急速充電噚を制埡する。本実斜圢態の制埡装眮は、コンバヌタ、第䞀コンバヌタ、第二コンバヌタ、蚭備甚蓄電池およびパワヌコンディショナヌずそれぞれ接続されおおり、コンバヌタ、第䞀コンバヌタ、第二コンバヌタ、蚭備甚蓄電池およびパワヌコンディショナヌを制埡する。 The control device 20 controls the quick charger 1-1. The control device 20 of the present embodiment is connected to the AC / DC converter 6, the first DC / DC converter 7, the second DC / DC converter 9, the storage battery 10 for equipment, and the power conditioner 8, respectively. 6. Control the first DC / DC converter 7, the second DC / DC converter 9, the storage battery 10 for equipment, and the power conditioner 8.

　蚭備甚蓄電池は、蚭備甚蓄電池の枩床や電圧、蓄電量、充攟電する電流倀等を監芖する監芖装眮を有しおいる。制埡装眮は、蚭備甚蓄電池の監芖装眮から、蚭備甚蓄電池に関する情報を取埗する。なお、蓄電量は、有効容量の範囲で算出される。䟋えば、蚭備甚蓄電池の党容量のからの範囲内で充攟電制埡がなされる堎合、党容量のの残量を蓄電量のずしお蓄電量が算出される。たた、蚭備甚蓄電池の蓄電率は、蚭備甚蓄電池の党容量のの残量が蓄電率のであり、党容量のの残量が蓄電率のずなる。 The facility storage battery 10 has a monitoring device that monitors the temperature and voltage of the facility storage battery 10, the storage amount SOC (kWh), the current value to be charged and discharged, and the like. The control device 20 acquires information related to the facility storage battery 10 from the monitoring device for the facility storage battery 10. The storage amount SOC is calculated in the range of the effective capacity Qb. For example, when charge / discharge control is performed within the range of 10% to 90% of the total capacity of the storage battery 10 for facilities, the storage amount SOC is calculated by setting the remaining amount of 10% of the total capacity to 0 (kWh) of the storage amount SOC. Is done. The storage rate (%) of the facility storage battery 10 is such that the remaining amount of 10% of the total capacity of the facility storage battery 10 is 0% of the storage rate, and the remaining amount of 90% of the total capacity is 100% of the storage rate. It becomes.

　制埡装眮は、充電噚甚電源ラむンからコンバヌタを介しお受電、あるいはコンバヌタを介しお充電噚甚電源ラむンに攟電する電力である授受電力を決定する。制埡装眮は、授受電力に基づいおバスに出力する電圧および電流の指什倀、あるいは充電噚甚電源ラむンに攟電する電圧および電流の指什倀を出力する。コンバヌタは、制埡装眮から受け取った指什倀に基づいお、バスに出力する電圧および電流あるいは充電噚甚電源ラむンに攟電する電圧および電流を制埡する。本明现曞では、コンバヌタを介しお入出力する電流倀を授受電流倀qcず称する。 Control device 20 determines transmission / reception power Pqc (kW) that is power received from charger power supply line 4 via AC / DC converter 6 or discharged to charger power supply line 4 via AC / DC converter 6. . Control device 20 outputs a command value of voltage and current to be output to bus 5 or a command value of voltage and current to be discharged to charger power supply line 4 based on transmission / reception power Pqc. The AC / DC converter 6 controls the voltage and current output to the bus 5 or the voltage and current discharged to the charger power supply line 4 based on the command value received from the control device 20. In the present specification, a current value input / output via the AC / DC converter 6 is referred to as an exchange current value Iqc.

　たた、制埡装眮は、出力ラむンに接続された電気自動車からの充電芁求に応じお、電気自動車に察しお䟛絊する出力電力を蚭定する。本実斜圢態では、出力電力の最倧倀である最倧出力電力は、ずするが、いずれの倀であっおも構わない。制埡装眮は、電気自動車からの芁求に基づいお出力ラむンに出力する電圧および電流の指什倀を第䞀コンバヌタに出力する。第䞀コンバヌタは、制埡装眮からの指什倀に基づいお、バスから出力ラむンに出力する電圧および電流を制埡する。制埡装眮は、パワヌコンディショナヌから、倪陜光発電装眮によっお発電されおバスに入力される入力電力電圧および電流を取埗する。制埡装眮は、パワヌコンディショナヌに指什しお倪陜光発電装眮ずバスずを遮断し、入力電力をずするこずが可胜である。 Further, the control device 20 sets the output power Po (kW) to be supplied to the electric vehicle EV in response to a charging request from the electric vehicle EV connected to the output line 11. In the present embodiment, the maximum output power Pomax, which is the maximum value of the output power Po, is 50 kW, but it may be any value. The control device 20 outputs to the first DC / DC converter 7 a voltage and current command value to be output to the output line 11 based on a request from the electric vehicle EV. The first DC / DC converter 7 controls the voltage and current output from the bus 5 to the output line 11 based on the command value from the control device 20. The control device 20 acquires input power Pg (voltage and current) generated by the solar power generation device 12 and input to the bus 5 from the power conditioner 8. The control device 20 can instruct the power conditioner 8 to shut off the solar power generation device 12 and the bus 5 and set the input power Pg to zero.

　制埡装眮は、蚭備甚蓄電池の攟電電力を決定し、攟電電力に基づいお蚭備甚蓄電池からバスに出力する電圧および電流の指什倀、あるいはバスから蚭備甚蓄電池に出力する電圧および電流の指什倀を第二コンバヌタに出力する。第二コンバヌタは、制埡装眮からの指什倀に基づいお、蚭備甚蓄電池からバスに出力する電圧および電流、あるいはバスから蚭備甚蓄電池に出力する電圧および電流を制埡する。 The control device 20 determines the discharge power Pb of the facility storage battery 10 and outputs a voltage and current command value output from the facility storage battery 10 to the bus 5 based on the discharge power Pb, or outputs from the bus 5 to the facility storage battery 10. The voltage and current command values are output to the second DC / DC converter 9. The second DC / DC converter 9 controls the voltage and current output from the facility storage battery 10 to the bus 5 or the voltage and current output from the bus 5 to the facility storage battery 10 based on the command value from the control device 20. To do.

　制埡装眮には、デマンドコントロヌラが接続されおいる。デマンドコントロヌラは、店舗甚電源ラむンに接続された電力消費蚭備ず、急速充電噚ずを合わせた受電のデマンドをコントロヌルする倖郚の制埡装眮である。デマンドコントロヌラは、分電盀を介しお商甚電源ラむンから受電する電力を怜出し、所定時間圓たりに受電する電力量を算出する。デマンドコントロヌラは、算出した電力量に基づいお、急速充電噚が受電可胜な電力の最倧倀を瀺す指什倀蚱容最倧電力を出力する。 The demand controller 15 is connected to the control device 20. The demand controller 15 is an external control device that controls the power-receiving demand by combining the power consumption equipment connected to the store power line 3 and the quick charger 1-1. The demand controller 15 detects the power received from the commercial power supply line 1 via the distribution board 2 and calculates the amount of power received per predetermined time. The demand controller 15 outputs a command value (allowable maximum power) indicating the maximum value of power that can be received by the quick charger 1-1 based on the calculated power amount.

　急速充電噚は、デマンドコントロヌラから出力される蚱容最倧電力に基づいお授受電力を決定する。コンバヌタを介しお商甚電源から受電する電力は、蚱容最倧電力以䞋ずされる。䟋えば、制埡装眮は、電気自動車に察する充電を行う堎合に、授受電力を蚱容最倧電力ずしおコンバヌタを介しお受電する。制埡装眮は、出力電力に察しお授受電力が䞍足する堎合、蚭備甚蓄電池に攟電させる。たた、制埡装眮は、出力電力に察しお授受電力で䞍足する分の少なくずも䞀郚を倪陜光発電装眮からの入力電力から出力し、曎に䞍足する堎合に蚭備甚蓄電池に攟電させるようにするこずもできる。 The quick charger 1-1 determines the transfer power Pqc based on the allowable maximum power output from the demand controller 15. The power received from the commercial power supply via the AC / DC converter 6 is set to be equal to or lower than the allowable maximum power. For example, when charging the electric vehicle EV, the control device 20 receives the power via the AC / DC converter 6 with the transmission / reception power Pqc as the allowable maximum power. The control device 20 causes the facility storage battery 10 to discharge when the exchanged power Pqc is insufficient with respect to the output power Po. Further, the control device 20 outputs at least a part of the output power Po that is insufficient with the exchanged power Pqc from the input power Pg from the solar power generation device 12 and discharges it to the facility storage battery 10 when the power is insufficient. It can also be made to do.

　ここで、商甚電源からの受電量を䜎枛できるこずが望たれおいる。䟋えば、比范的電力料金の単䟡が高い昌間や、電力需芁が倚いピヌク時間垯における受電量を䜎枛できるこずが奜たしい。 Here, it is desired that the amount of power received from a commercial power source can be reduced. For example, it is preferable that the amount of power received can be reduced during the daytime when the unit price of the power rate is relatively high or during peak hours when the power demand is high.

　本実斜圢態に係る急速充電噚では、蚭備甚蓄電池の蓄電量の目暙倀が、受電手段ずしおのコンバヌタを介しお受電する電力に応じお倉化する。これにより、受電電力に応じお適宜蓄電量の目暙倀を定めるこずができ、受電量を䜎枛するこずが可胜ずなる。なお、蓄電量の目暙倀は、蚭備甚蓄電池に蓄電をするずきの蓄電量の䞊限である。埓っお、蓄電量が目暙倀を䞊回っおいるずしおも、蓄電量を目暙倀たで䜎䞋させる必芁はない。 In the quick charger 1-1 according to the present embodiment, the target value of the storage amount SOC of the facility storage battery 10 changes according to the power received via the AC / DC converter 6 as the power receiving means. Thereby, the target value of the stored electricity amount SOC can be appropriately determined according to the received power, and the received power amount can be reduced. Note that the target value of the storage amount SOC is the upper limit of the storage amount SOC when the facility storage battery 10 is stored. Therefore, even if the charged amount SOC exceeds the target value, it is not necessary to reduce the charged amount SOC to the target value.

　図は、実斜圢態に係る受電電力ず目暙蓄電量ずの関係を瀺す図である。図においお、暪軞はコンバヌタを介しお商甚電源から受電する受電電力、瞊軞は、蓄電量の目暙倀以䞋、「目暙蓄電量」ず称する。を瀺す。暪軞の受電電力は、急速充電噚が実際に受電する電力であっおも、デマンドコントロヌラからの指什倀、すなわち蚱容最倧電力であっおもよい。なお、図は、蚭備甚蓄電池の最倧出力が、電気自動車に察する最倧出力電力以䞊である堎合の受電電力ず目暙蓄電量ずの関係を瀺しおいる。本実斜圢態では、最倧出力電力がである。埓っお、蚭備甚蓄電池の最倧出力が以䞊である堎合に図に瀺す察応関係に基づいお目暙蓄電量が決定される。 FIG. 2 is a diagram illustrating a relationship between the received power and the target power storage amount according to the embodiment. In FIG. 2, the horizontal axis indicates the received power received from the commercial power supply via the AC / DC converter 6, and the vertical axis indicates the target value of the storage amount SOC (hereinafter referred to as “target storage amount SOCt”). The received power on the horizontal axis may be the power actually received by the quick charger 1-1 or the command value from the demand controller 15, that is, the allowable maximum power. FIG. 2 shows the relationship between the received power and the target charged amount SOCt when the maximum output of the facility storage battery 10 is equal to or greater than the maximum output power Pomax for the electric vehicle EV. In the present embodiment, the maximum output power Pomax is 50 kW. Therefore, when the maximum output of the facility storage battery 10 is 50 kW or more, the target storage amount SOCt is determined based on the correspondence shown in FIG.

　図に瀺すように、受電電力が小さい堎合の目暙蓄電量は、受電電力が倧きい堎合の目暙蓄電量よりも倧きい。これにより、商甚電源から倧きな電力を受電できる堎合に蓄電量を䜎く保ち、商甚電源からの受電量を抑制するこずができる。本実斜圢態では、受電電力ず目暙蓄電量ずの関係は線圢であり、受電電力が倧きくなるに埓っお目暙蓄電量が枛少する。 As shown in FIG. 2, the target storage amount SOCt when the received power is small is larger than the target storage amount SOCt when the received power is large. Thereby, when large electric power can be received from the commercial power source, the charged amount SOC can be kept low, and the received power amount from the commercial power source can be suppressed. In the present embodiment, the relationship between the received power and the target charged amount SOCt is linear, and the target charged amount SOCt decreases as the received power increases.

　本実斜圢態では、以䞋に説明するように、目暙蓄電量は、倖郚の装眮に察する回圓たりの充電時間chgず、倖郚の装眮に察しお出力する最倧電力最倧出力電力ず、コンバヌタを介しお受電する電力ずに基づく。目暙蓄電量は、回の充電時間chgの間、商甚電源からの受電電力ず蚭備甚蓄電池の攟電電力ずによっお電気自動車に察しお最倧出力電力を出力し続けるこずができるように定められおいる。 In the present embodiment, as will be described below, the target charged amount SOCt is determined by the charging time Tchg per time for an external device, the maximum power output to the external device (maximum output power Pomax), and AC / Based on the power received via the DC converter 6. The target power storage amount SOCt can continue to output the maximum output power Pomax to the electric vehicle EV by the received power from the commercial power source and the discharge power Pb of the facility storage battery 10 during one charging time Tchg. It is stipulated in.

　目暙蓄電量は、䟋えば、受電電力がであっおも蚭備甚蓄電池の攟電電力によっお電気自動車に察する充電を完了するこずができるように定められる。本実斜圢態では、電気自動車に察する回圓たりの充電時間chg最倧充電時間は、である。蚭備甚蓄電池が最倧出力電力であるを出力し続けるためには、蓄電量が必芁である。図に瀺すように、受電電力がである堎合の目暙蓄電量は、である。電気自動車に察する充電開始時に蓄電量がであれば、受電電力がであっおも蚭備甚蓄電池によっお電気自動車に察する充電を完了するこずが可胜である。 The target storage amount SOCt is determined so that, for example, the charging of the electric vehicle EV can be completed by the discharge power Pb of the facility storage battery 10 even when the received power is 0 kW. In the present embodiment, the charging time Tchg (maximum charging time) per electric vehicle EV is 30 min (0.5 h). In order for the facility storage battery 10 to continue to output 50 kW, which is the maximum output power Pomax, for 0.5 h, the storage amount SOC needs to be 25 kWh. As shown in FIG. 2, the target storage amount SOCt when the received power is 0 kW is 25 kWh. If the storage amount SOC is 25 kWh at the start of charging of the electric vehicle EV, the charging of the electric vehicle EV can be completed by the facility storage battery 10 even if the received power is 0 kW.

　たた、受電電力が以䞊である堎合の目暙蓄電量は、である。受電電力が以䞊であれば、蚭備甚蓄電池の蓄電量がであっおも、受電電力によっお電気自動車に察する充電を完了するこずが可胜である。図に瀺す目暙蓄電量に基づいお蚭備甚蓄電池に蓄電するようにすれば、受電電力にかかわらず、充電時間chgの間、電気自動車に察しおの出力電力を䟛絊し続けるこずができる。 In addition, the target storage amount SOCt when the received power is 50 kW or more is 0 kWh. If the received power is 50 kW or more, it is possible to complete charging of the electric vehicle EV with the received power even if the storage amount SOC of the facility storage battery 10 is 0 kWh. If the storage battery 10 for facilities is stored based on the target storage amount SOCt shown in FIG. 2, the output power Po of 50 kW is continuously supplied to the electric vehicle EV during the charging time Tchg regardless of the received power. be able to.

　たた、本実斜圢態の急速充電噚では、目暙蓄電量は、電気自動車に察する充電を完了可胜な最小限の倀ずされおいる。埓っお、商甚電源からの受電量を必芁最小限に抑えるこずが可胜ずなる。 Further, in the quick charger 1-1 of the present embodiment, the target charged amount SOCt is set to a minimum value that can complete the charging of the electric vehicle EV. Therefore, the amount of power received from the commercial power source can be minimized.

　図は、本実斜圢態の急速充電噚の充攟電に係るタむムチャヌトである。図においお、暪軞は時間、瞊軞は蓄電量を瀺す。図に瀺すように、時刻からの間第回目、時刻からの間第回目、時刻からの間第回目にそれぞれ電気自動車に察する充電が行われる。 FIG. 3 is a time chart relating to charging / discharging of the quick charger 1-1 according to the present embodiment. In FIG. 3, the horizontal axis indicates time, and the vertical axis indicates the storage amount SOC. As shown in FIG. 3, the electric vehicle EV is charged between time t1 and t2 (first time), between time t3 and t4 (second time), and between time t5 and t6 (third time). Done.

　第回目および第回目の充電埌の蓄電量は、それぞれ目暙蓄電量よりも倧きい。埓っお、充電完了埌に蚭備甚蓄電池に察する蓄電は行われない。第回目の充電埌の蓄電量は目暙蓄電量を䞋回っおいる。これにより、時刻から蚭備甚蓄電池に察する蓄電が開始される。時刻に蓄電量が目暙蓄電量たで回埩するず、商甚電源からの受電が終了し、蚭備甚蓄電池に察する蓄電が終了する。その埌は、蓄電量が目暙蓄電量を䞋回るず、蚭備甚蓄電池に察する蓄電がなされる。 The storage amount SOC after the first charge and the second charge is larger than the target storage amount SOCt, respectively. Accordingly, the storage of the facility storage battery 10 is not performed after the charging is completed. The storage amount SOC after the third charge is less than the target storage amount SOCt. Thereby, the electrical storage with respect to the storage battery 10 for facilities is started from the time t6. When the storage amount SOC recovers to the target storage amount SOCt at time t7, the power reception from the commercial power supply is ended, and the storage of the facility storage battery 10 is ended. Thereafter, when the storage amount SOC falls below the target storage amount SOCt, the facility storage battery 10 is charged.

　このように、本実斜圢態に係る急速充電噚によれば、蚭備甚蓄電池の蓄電量を電気自動車に察する充電を完了するために必芁な最小限ずしおおくこずができ、商甚電源からの受電量を抑制するこずが可胜ずなる。 As described above, according to the quick charger 1-1 according to the present embodiment, the storage amount SOC of the facility storage battery 10 can be kept to the minimum necessary for completing the charging of the electric vehicle EV. It is possible to suppress the amount of power received from the.

　なお、本実斜圢態に係る目暙蓄電量の決定方法は、垞時行われおも、所定の条件が成立する堎合に行われるようにしおもよい。䟋えば、予め定められた所定期間や予め定められた所定時間垯に䞊蚘のような目暙蓄電量の決定方法が行われおもよい。所定時間垯は、䟋えば、日のうちで電力料金の単䟡が比范的高額な時間垯、䟋えば昌間時間ずするこずができる。所定時間垯は、電力需芁が倧きい時間垯重負荷時間、ピヌク時間ずされおもよい。所定期間は、䟋えば、倏期ずするこずができる。 It should be noted that the method for determining the target charged amount SOCt according to the present embodiment may be performed constantly or when a predetermined condition is satisfied. For example, the method for determining the target storage amount SOCt as described above may be performed during a predetermined period or a predetermined time period. The predetermined time zone can be, for example, a time zone in which the unit price of the power rate is relatively high in one day, for example, daytime time. The predetermined time zone may be a time zone (heavy load time, peak time) when power demand is large. The predetermined period can be, for example, summer.

　䞊蚘の所定時間垯を陀く時間垯の目暙蓄電量は、䞊蚘所定時間垯の目暙蓄電量ず異なるようにしおもよい。所定時間垯を陀く時間垯の目暙蓄電量は、所定時間垯の目暙蓄電量以䞊であるこずが望たしく、所定時間垯の目暙蓄電量よりも倧きな倀であるこずが奜たしい。このようにすれば、次の所定時間垯での攟電に備えお、所定時間垯を陀く時間垯に蓄電量を十分に回埩させおおくこずができる。 The target power storage amount SOCt during the time period excluding the predetermined time period may be different from the target power storage amount SOCt during the predetermined time period. The target power storage amount SOCt in the time zone excluding the predetermined time zone is desirably equal to or greater than the target power storage amount SOCt in the predetermined time zone, and is preferably larger than the target power storage amount SOCt in the predetermined time zone. In this way, in preparation for the discharge in the next predetermined time zone, the charged amount SOC can be sufficiently recovered in the time zone excluding the predetermined time zone.

　䟋えば、所定時間垯を陀く時間垯には、所定時間垯ずは反察に、受電電力が倧きい堎合の目暙蓄電量を受電電力が小さい堎合の目暙蓄電量よりも倧きくするようにしおもよい。この堎合に、受電量がであるずきの目暙蓄電量は、所定時間垯ず所定時間垯以倖の時間垯ずで共通ずされおもよい。䟋えば、所定時間垯の目暙蓄電量が図に瀺すように定められおいる堎合、所定時間垯以倖の時間垯における受電電力がのずきの目暙蓄電量はずされおもよい。所定時間垯以倖の時間垯の目暙蓄電量ず受電電力ずの関係は、䟋えば、線圢ずするこずができる。 For example, in the time zone excluding the predetermined time zone, the target power storage amount SOCt when the received power is large may be made larger than the target power storage amount SOCt when the received power is low, contrary to the predetermined time zone. . In this case, the target power storage amount SOCt when the power reception amount is 0 kW may be common between the predetermined time zone and a time zone other than the predetermined time zone. For example, when the target power storage amount SOCt in a predetermined time zone is determined as shown in FIG. 2, the target power storage amount SOCt when the received power in the time zone other than the predetermined time zone is 0 kW may be 25 kWh. The relationship between the target power storage amount SOCt and the received power in a time zone other than the predetermined time zone can be linear, for example.

　なお、所定時間垯を陀く時間垯の目暙蓄電量は、䞀定倀ずされおもよく、䟋えば、蓄電量の最倧倀蓄電率ずされおもよい。このようにした堎合、次の所定時間垯における攟電に備えお蚭備甚蓄電池に最倧限の蓄電を行っおおくこずができる。 It should be noted that the target storage amount SOCt in the time period excluding the predetermined time period may be a constant value, for example, the maximum value (storage rate 100%) of the storage amount SOC. In this case, the facility storage battery 10 can be charged to the maximum extent in preparation for discharge in the next predetermined time period.

　図は、実斜圢態に係る受電電力ず目暙蓄電量ずの関係を瀺す他の図である。図には、蚭備甚蓄電池の最倧出力が、電気自動車に察する最倧出力電力未満である堎合の受電電力ず目暙蓄電量ずの関係が瀺されおいる。目暙蓄電量の最倧倀は、回の充電時間chgにおいお蚭備甚蓄電池が出力する最倧電力量ずされおいる。図に瀺す受電電力ず目暙蓄電量ずの関係は、蚭備甚蓄電池の最倧出力が、充電時間chgがのものであり、目暙蓄電量の最倧倀は、である。これは、回の充電時間においお、蚭備甚蓄電池が最倧出力で攟電し続けた堎合に出力する電力量に盞圓する。蚀い換えるず、目暙蓄電量の䞊限は、蚭備甚蓄電池の最倧出力ず、回圓たりの充電時間chgずの積に盞圓する。このように目暙蓄電量の最倧倀を蚭定するこずで、蚭備甚蓄電池に察しお必芁以䞊に蓄電がなされるこずを抑制し、受電量を抑制するこずができる。 FIG. 4 is another diagram showing the relationship between the received power and the target charged amount SOCt according to the embodiment. FIG. 4 shows the relationship between the received power and the target charged amount SOCt when the maximum output of the facility storage battery 10 is less than the maximum output power Pomax for the electric vehicle EV. The maximum value of the target storage amount SOCt is the maximum amount of power output from the facility storage battery 10 in one charge time Tchg. The relationship between the received power and the target storage amount SOCt shown in FIG. 4 is that the maximum output of the facility storage battery 10 is 25 kW and the charging time Tchg is 0.5 h, and the maximum value of the target storage amount SOCt is 12.5 kWh. It is. This corresponds to the amount of electric power that is output when the storage battery 10 for facilities continues to be discharged at the maximum output (25 kW) in one charging time (0.5 h). In other words, the upper limit of the target storage amount SOCt corresponds to the product of the maximum output of the facility storage battery 10 and the charging time Tchg per time. By setting the maximum value of the target power storage amount SOCt in this way, it is possible to suppress power storage more than necessary for the facility storage battery 10 and to suppress the power reception amount.

　以䞋の受電電力の領域では、目暙蓄電量が最倧倀ので䞀定である。䞀方、よりも倧きい受電電力の領域では、目暙蓄電量は、可倉である。よりも受電電力が倧きい堎合、受電電力が小さい堎合の目暙蓄電量は、受電電力が倧きい堎合の目暙蓄電量よりも倧きい。本実斜圢態では、よりも倧きい受電電力の領域では、受電電力ず目暙蓄電量ずの関係が線圢である。 In the region of the received power of 25 kW or less, the target storage amount SOCt is constant at the maximum value of 25 kWh. On the other hand, in the region of received power greater than 25 kW, the target charged amount SOCt is variable. When the received power is larger than 25 kW, the target charged amount SOCt when the received power is small is larger than the target charged amount SOCt when the received power is large. In the present embodiment, the relationship between the received power and the target charged amount SOCt is linear in the received power region greater than 25 kW.

　なお、本実斜圢態では、蚭備甚蓄電池に蓄電する堎合に、蓄電量が目暙蓄電量に達したら蓄電を停止するこずずしたが、倪陜光発電装眮からの入力電力による蓄電はこれずは別に行われおもよい。すなわち、目暙蓄電量は、商甚電源からの受電によっお蚭備甚蓄電池に察する蓄電を行う堎合の蓄電量の䞊限ずするこずができる。倪陜光発電装眮からの入力電力による蓄電は、目暙蓄電量にかかわらず実行されおもよく、䟋えば、最倧の蓄電量たで入力電力によっお蓄電がなされおもよい。 In this embodiment, when storing in the facility storage battery 10, the storage is stopped when the storage amount SOC reaches the target storage amount SOCt. However, the storage using the input power Pg from the solar power generation device 12 is not performed. It may be performed separately. That is, the target storage amount SOCt can be the upper limit of the storage amount SOC when the facility storage battery 10 is stored by receiving power from a commercial power source. Power storage using the input power Pg from the solar power generation device 12 may be executed regardless of the target power storage amount SOCt. For example, power may be stored using the input power Pg up to the maximum power storage amount SOC.

実斜圢態の第倉圢䟋
　実斜圢態の第倉圢䟋に぀いお説明する。受電電力に応じお目暙蓄電量が倉化する堎合の受電電力ず目暙蓄電量ずの関係は、線圢には限定されない。目暙蓄電量は、䟋えば、受電電力の倉化に察しお階段状に倉化しおもよい。䟋えば、受電電力が䞀定量増加する毎に目暙蓄電量が䞀定量枛少するようにしおもよい。 [First Modification of Embodiment]
A first modification of the embodiment will be described. The relationship between the received power and the target charged amount SOCt when the target charged amount SOCt changes according to the received power is not limited to linear. For example, the target storage amount SOCt may change stepwise with respect to a change in received power. For example, the target power storage amount SOCt may be decreased by a certain amount every time the received power increases by a certain amount.

実斜圢態の第倉圢䟋
　実斜圢態の第倉圢䟋に぀いお説明する。図は、実斜圢態の第倉圢䟋に係る受電電力ず目暙蓄電量ずの関係を瀺す図である。図では、癜䞞○によっお目暙蓄電量が瀺されおいる。図に瀺す実線は、受電電力が䞀定である堎合に電気自動車に察する充電を完了するために最䜎限必芁ずされる蓄電量である。本倉圢䟋では、蚱容最倧電力の倉動に備えお、最䜎限必芁ずされる蓄電量に所定のマヌゞン以䞋、「加算量Δ」ず称する。が加算されお目暙蓄電量が定められおいる。 [Second Modification of Embodiment]
A second modification of the embodiment will be described. FIG. 5 is a diagram illustrating a relationship between the received power and the target charged amount SOCt according to the second modification of the embodiment. In FIG. 5, the target charged amount SOCt is indicated by a white circle (◯). The solid line shown in FIG. 5 is the minimum storage amount SOC required to complete the charging of the electric vehicle EV when the received power is constant. In the present modification, a predetermined margin (hereinafter referred to as “addition amount ΔS”) is added to the minimum required storage amount SOC in preparation for fluctuations in the maximum allowable power to determine the target storage amount SOCt. ing.

　デマンドコントロヌラから出力される蚱容最倧電力は、怜出された受電量に応じお倉動し埗る。蚱容最倧電力が䜎枛された堎合であっおも、回の充電時間chgで電気自動車に察する充電を完了できるこずが奜たしい。本倉圢䟋では、目暙蓄電量は、加算量Δを含んでいる。これにより、デマンドコントロヌラから出力される蚱容最倧電力が䜎䞋した堎合に、電気自動車に察する出力電力が䞍足する可胜性を䜎枛できる。 The allowable maximum power output from the demand controller 15 can fluctuate according to the detected amount of power received. Even when the allowable maximum power is reduced, it is preferable that the charging of the electric vehicle EV can be completed in one charging time Tchg. In the present modification, the target power storage amount SOCt includes the addition amount ΔS. Thereby, when the permissible maximum power output from the demand controller 15 decreases, the possibility that the output power Po for the electric vehicle EV is insufficient can be reduced.

　加算量Δは、䞀定倀ずされおも、受電電力に応じお可倉ずされおもよい。加算量Δは、䟋えば、珟圚の受電電力から決たる最䜎限必芁な蓄電量図の盎線䞊の倀に察しお所定の割合䟋えば、やの倀ずされおもよい。受電電力が倧きい堎合の加算量Δは、受電電力が小さい堎合の加算量Δよりも小さくされおもよい。 The addition amount ΔS may be a constant value or may be variable according to the received power. The addition amount ΔS may be a predetermined ratio (for example, 5% or 10%) with respect to the minimum required storage amount SOC (value on the straight line in FIG. 5) determined from the current received power, for example. Good. The addition amount ΔS when the received power is large may be smaller than the addition amount ΔS when the received power is small.

　加算量Δは、デマンドコントロヌラが蚱容最倧電力を倉化させるずきの回圓たりの倉曎ピッチ倉曎幅に基づいお決定されおもよい。加算量Δは、䟋えば、倉曎ピッチ分だけ蚱容最倧電力が䜎䞋した堎合であっおも充電時間chg内に電気自動車に察する充電を完了するこずが可胜ずなるように定められる。蚱容最倧電力の回圓たりの倉曎ピッチをΔずするず、加算量Δは、䟋えば䞋蚘匏で算出される。
　Δchg×Δ  The addition amount ΔS may be determined based on a change pitch (change width) per time when the demand controller 15 changes the allowable maximum power. For example, the amount of addition ΔS is determined so that charging of the electric vehicle EV can be completed within the charging time Tchg even when the allowable maximum power is reduced by the change pitch. Assuming that the change pitch per allowable maximum power is ΔPi, the addition amount ΔS is calculated by the following equation (1), for example.
ΔS = Tchg × ΔPi (1)

　本倉圢䟋によれば、目暙蓄電量が加算量Δを含んでいるこずにより、電気自動車に察する充電時の出力電力の䞍足が抑制される。䟋えば、電気自動車に察する充電䞭に蚱容最倧電力が䜎䞋した堎合であっおも充電を完了させるこずが可胜ずなる。 According to this modification, the shortage of the output power Po when charging the electric vehicle EV is suppressed because the target charged amount SOCt includes the added amount ΔS. For example, charging can be completed even when the allowable maximum power is reduced during charging of the electric vehicle EV.

　なお、デマンドコントロヌラが蚱容最倧電力を倉化させる時間間隔は、充電時間chg以䞊であるこずが奜たしい。このようにすれば、電気自動車に察する充電䞭に蚱容最倧電力が倉化するずしおも、その回数は倚くずも回である。埓っお、蚱容最倧電力の䜎䞋に備えお最䜎限必芁な蓄電量を確保しおおくこずができ、か぀蚭備甚蓄電池に過倧に蓄電しおしたい受電量が増加するこずを抑制するこずができる。 Note that the time interval at which the demand controller 15 changes the allowable maximum power is preferably equal to or longer than the charging time Tchg. In this way, even if the allowable maximum power changes during charging of the electric vehicle EV, the number of times is at most one. Therefore, it is possible to secure a minimum required storage amount SOC in preparation for a decrease in the allowable maximum power, and to suppress an excessive storage in the facility storage battery 10 and an increase in the amount of received power. .

実斜圢態の第倉圢䟋
　実斜圢態の第倉圢䟋に぀いお説明する。䞊蚘実斜圢態では、急速充電噚による充電の察象が電気自動車であったが、これに限らず、他の倖郚の装眮に察しお充電がなされおもよい。たた、急速充電噚は、倪陜光発電装眮のような倖郚の発電装眮から受電しないものであっおもよい。急速充電噚は、倪陜光発電装眮以倖の発電装眮、䟋えば颚力発電装眮から受電しおもよい。 [Third Modification of Embodiment]
A third modification of the embodiment will be described. In the above embodiment, the target of charging by the quick charger 1-1 is the electric vehicle EV. However, the present invention is not limited to this, and other external devices may be charged. Further, the quick charger 1-1 may be one that does not receive power from an external power generator such as the solar power generator 12. The quick charger 1-1 may receive power from a power generation device other than the solar power generation device 12, for example, a wind power generation device.

　䞊蚘の実斜圢態および倉圢䟋に開瀺された内容は、適宜組み合わせお実行されるこずができる。 The contents disclosed in the above embodiments and modifications can be executed in appropriate combination.

　　急速充電噚
　　商甚電源ラむン
　　分電盀
　　店舗甚電源ラむン
　　充電噚甚電源ラむン
　　コンバヌタ受電手段
　　第䞀コンバヌタ出力手段
　　第二コンバヌタ
　　蚭備甚蓄電池蓄電池
　　出力ラむン
　　デマンドコントロヌラ
　　制埡装眮
　　授受電力
　　入力電力
　　攟電電力
　　出力電力
　chg　充電時間
　Δ　加算量 1-1 Quick charger 1 Commercial power line 2 Distribution board 3 Store power line 4 Charger power line 6 AC / DC converter (power receiving means)
7 First DC / DC converter (output means)
9 Second DC / DC converter 10 Equipment storage battery (storage battery)
11 Output line 15 Demand controller 20 Control device Pqc Transfer power Pg Input power Pb Discharge power Po Output power Tchg Charging time ΔS Addition amount

Claims (5)

　商甚電源ず接続された受電手段ず、
　前蚘受電手段ず接続された蓄電池ず、
　前蚘受電手段および前蚘蓄電池ず接続され、倖郚の装眮に察する充電甚の電力を出力する出力手段ず、
　を備え、
　前蚘蓄電池の蓄電量の目暙倀が、前蚘受電手段を介しお受電する電力に応じお倉化する
　こずを特城ずする急速充電噚。 Power receiving means connected to a commercial power source;
A storage battery connected to the power receiving means;
Output means connected to the power receiving means and the storage battery, and for outputting electric power for charging to an external device;
With
The quick charger, wherein the target value of the amount of electricity stored in the storage battery changes according to the electric power received through the power receiving means. 　前蚘受電手段を介しお受電する電力が小さい堎合の前蚘蓄電量の目暙倀は、前蚘受電手段を介しお受電する電力が倧きい堎合の前蚘蓄電量の目暙倀よりも倧きい
　請求項に蚘茉の急速充電噚。 The target value of the amount of electricity stored when the power received through the power receiving unit is small is larger than the target value of the amount of electricity stored when the power received through the power receiving unit is large. Charger. 　前蚘蓄電量の目暙倀は、前蚘倖郚の装眮に察する回圓たりの充電時間ず、前蚘倖郚の装眮に察しお出力する最倧電力ず、前蚘受電手段を介しお受電する電力ずに基づく
　請求項に蚘茉の急速充電噚。 The target value of the amount of power storage is based on a charging time per time for the external device, a maximum power output to the external device, and a power received via the power receiving means. The described quick charger. 　前蚘蓄電量の目暙倀の䞊限は、前蚘蓄電池の最倧出力ず前蚘回圓たりの充電時間ずの積に盞圓する
　請求項に蚘茉の急速充電噚。 The quick charger according to claim 3, wherein an upper limit of the target value of the storage amount corresponds to a product of a maximum output of the storage battery and the charging time per time. 　前蚘受電手段を介しお受電する電力は、倖郚からの指什倀に基づいおおり、
　前蚘蓄電量の目暙倀は、曎に、前蚘倖郚からの指什倀の回圓たりの倉曎幅に基づく
　請求項に蚘茉の急速充電噚。 The power received through the power receiving means is based on an external command value,
The quick charger according to claim 1, wherein the target value of the charged amount is further based on a change width per one time of the command value from the outside.
PCT/JP2012/082841 2012-12-18 2012-12-18 Rapid charger Ceased WO2014097409A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007535282A (en) * 2003-07-10 2007-11-29 ゚アロノァむロンメント むンコヌポレむテッド Battery charging system and method
JP2009105998A (en) * 2007-10-19 2009-05-14 Sumitomo Electric Ind Ltd Power storage device
JP2011200104A (en) * 2010-01-08 2011-10-06 Jfe Engineering Corp Quick charging system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007535282A (en) * 2003-07-10 2007-11-29 ゚アロノァむロンメント むンコヌポレむテッド Battery charging system and method
JP2009105998A (en) * 2007-10-19 2009-05-14 Sumitomo Electric Ind Ltd Power storage device
JP2011200104A (en) * 2010-01-08 2011-10-06 Jfe Engineering Corp Quick charging system

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