WO2021200445A1 - 蓄電装置の組電池制御回路の電力供給方式、及び蓄電装置 - Google Patents
蓄電装置の組電池制御回路の電力供給方式、及び蓄電装置 Download PDFInfo
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- WO2021200445A1 WO2021200445A1 PCT/JP2021/012184 JP2021012184W WO2021200445A1 WO 2021200445 A1 WO2021200445 A1 WO 2021200445A1 JP 2021012184 W JP2021012184 W JP 2021012184W WO 2021200445 A1 WO2021200445 A1 WO 2021200445A1
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- Prior art keywords
- power
- converter
- battery module
- control circuit
- storage device
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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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- 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
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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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- H02J7/50—
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- H02J7/63—
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- H02J7/685—
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- H02J7/90—
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
- H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
- H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
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- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- 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 power supply method for an assembled battery control circuit of a power conversion device for charging a battery module and a power storage device including the battery module, and a power storage device.
- a power storage device equipped with a battery module has been developed (see Patent Document 1).
- the battery module is provided with a battery control circuit, and a battery module that supplies operating power from the battery of the battery module has also been developed as a DC / DC converter that steps down the battery voltage of the battery module using the power supply circuit of this control circuit. ing.
- This battery module has an adverse effect of consuming power from the battery in order to operate the control circuit. Even when the battery module is not used, that is, when the battery module is not discharged, the control circuit operates at predetermined time intervals and detects the remaining capacity, so that there is an adverse effect of power consumption in this state.
- this power supply circuit supplies operating power from the battery to the control circuit, there is an adverse effect of being discharged by the dark current of the control circuit and over-discharging, and when the battery voltage of the battery module drops, the control circuit is connected. There is a drawback that the supply voltage of the battery drops and it becomes impossible to maintain a normal operating state.
- the present invention has been developed for the purpose of eliminating the above-mentioned drawbacks, and one of the purposes of the present invention is to stably supply operating power to a battery control circuit from both commercial power and a battery module. To provide technology.
- the power supply method of the assembled battery control circuit of the power storage device is a battery module including a plurality of rechargeable battery cells and a built-in battery control circuit, and the battery module is charged with commercial power and commercial power is supplied.
- This is a power supply method for a battery assembly control circuit in a power storage device including a power conversion device for supplying a load.
- the battery assembly control of the battery module is performed from the power conversion device.
- the operating power from the battery module to the assembled battery control circuit is started by the connection signal from the connection detection unit that supplies the operating power to the circuit and detects the state in which the power conversion device starts supplying power to the assembled battery control circuit.
- the power supply from the battery module to the assembled battery control circuit is stopped by the stop signal from the discharge stop determination unit that detects the discharge stop state of the battery module.
- the power storage device includes a power conversion device in which power is supplied from a commercial power source to supply power to a load, a battery module including a plurality of rechargeable battery cells and an assembled battery control circuit, and a power conversion device.
- a switching circuit that switches the supply of power from the battery module to the assembled battery control circuit, a connection detector that detects the power supply from the power converter to the assembled battery control circuit, and a discharge stop determination in the discharge stop state of the battery module. It has a department.
- the switching circuit supplies power from the power converter to the assembled battery control circuit when the output voltage of the power converter is higher than the set voltage, and detects the power supply from the power converter to the assembled battery control circuit.
- the connection signal from the connection detection unit supplies the operating power from the battery module to the assembled battery control circuit, and the discharge stop signal from the discharge stop determination unit stops the power supply from the battery module to the assembled battery control circuit.
- the power storage device includes a power conversion device in which power is supplied from a commercial power source to supply power to a load, a battery module including a plurality of rechargeable battery cells and an assembled battery control circuit, and an assembled battery.
- a DC / DC converter that supplies operating power to the control circuit, a switching circuit that switches the connection between the power converter and the battery module, a connection detector that detects the power supply from the power converter to the assembled battery control circuit, and a battery. It is equipped with a discharge stop determination unit in the discharge stop state of the module.
- the switching circuit is a connection from a connection detection unit that connects the power converter to the DC / DC converter and detects the connection between the power converter and the DC / DC converter when the output voltage of the power converter is higher than the set voltage.
- the battery module is connected to the DC / DC converter by a signal, and the connection between the battery module and the DC / DC converter is cut off by the discharge stop signal from the discharge stop determination unit.
- the above-mentioned power supply method and power storage device of the battery control circuit of the power storage device have a feature that the operating power can be stably supplied to the battery control circuit from both the power conversion device and the battery module.
- the power supply method of the assembled battery control circuit in the power storage device includes a battery module including a plurality of rechargeable battery cells and a built-in battery control circuit, and the battery module is charged with commercial power and is commercially available.
- the operating power from the battery module to the assembled battery control circuit is started by the connection signal from the connection detector that supplies the operating power to the battery control circuit and detects the state in which the power converter starts supplying power to the assembled battery control circuit. Then, the power supply from the battery module to the assembled battery control circuit is stopped by the stop signal from the discharge stop determination unit that detects the discharge stop state of the battery module.
- the power supply method of the assembled battery control circuit in the above power storage device is ideal because the operating power is supplied to the assembled battery control circuit from both the power converter and the battery module, without providing a dedicated power supply for the assembled battery control circuit. It is possible to supply operating power in a normal state. Since the assembled battery control circuit monitors the state of each battery cell, it is held in the operation mode and consumes power even when the battery module is not used, that is, when it is not discharged.
- the power storage device includes a large number of battery cells in order to increase the charge / discharge capacity and output. Since this power storage device manages a large number of battery cells, the power consumption of the assembled battery control circuit becomes large, and the conventional power storage device provides power to the assembled battery control circuit by providing a dedicated power source.
- This power storage device needs to be provided with a dedicated power source, which increases the equipment cost. This adverse effect can be eliminated by adjusting the output voltage of the power converter or the battery module itself with a DC / DC converter and supplying it to the assembled battery control circuit.
- the power storage device that supplies power from the power converter to the battery control circuit can adjust the voltage of the output of the power converter with a DC / DC converter and supply it to the battery control circuit, but the power converter always outputs the voltage. If it is not in the state and the voltage is not output, the operating power cannot be supplied to the assembled battery control circuit.
- the power conversion device outputs a voltage in a state of charging the battery module and in a state of supplying power to the load, but does not output a voltage in a state of not charging the battery module and supplying power to the load. It is possible to adjust the output voltage of the battery module to supply operating power to the assembled battery control circuit, but this power storage device cannot supply operating power to the assembled battery control circuit when the voltage of the battery module drops to the minimum voltage. .. Further, in the device for supplying the operating power from the battery module to the assembled battery control circuit, the battery module constantly consumes the power, and the voltage gradually decreases.
- the operating power is supplied to the assembled battery control circuit from both the power converter and the battery module, and the output voltage of the power converter is higher than the set voltage.
- the connection detector detects that the power converter supplies the operating power to the assembled battery control circuit and further supplies the operating power from the power converter to the assembled battery control circuit, and the battery module also supplies the operating power to the assembled battery control circuit.
- the operating power is supplied to the assembled battery control circuit from both the power converter and the battery module. In this state, when the voltage of the battery module drops or the like causes an over-discharge state, the discharge stop determination unit detects this and stops the power supply from the battery module.
- the battery module does not become over-discharged, and power can be supplied to the assembled battery control circuit. Further, in a state where the battery module is over-discharged, power can be supplied from the power conversion device to the assembled battery control circuit to keep the assembled battery control circuit in the operating state. When the voltage of the battery module drops, the power converter outputs a predetermined voltage to charge the battery module. Therefore, in this state, the output from the power converter can supply the operating power to the assembled battery control circuit. .. Therefore, the power supply method of the assembled battery control circuit in the above power storage device can supply the operating power in an ideal state from both the power conversion device and the battery module.
- the power storage device includes a power conversion device in which power is supplied from a commercial power source to supply power to a load, a battery module including a plurality of rechargeable battery cells and an assembled battery control circuit, and electric power.
- a switching circuit that switches the supply of power from the converter and battery module to the assembled battery control circuit, a connection detector that detects the power supply from the power converter to the assembled battery control circuit, and discharge of the battery module in the discharged stopped state. It is equipped with a stop determination unit.
- the switching circuit supplies power from the power converter to the assembled battery control circuit when the output voltage of the power converter is higher than the set voltage, and detects the power supply from the power converter to the assembled battery control circuit.
- the connection signal from the connection detection unit supplies the operating power from the battery module to the assembled battery control circuit, and the discharge stop signal from the discharge stop determination unit stops the power supply from the battery module to the assembled battery control circuit.
- operating power is supplied to the assembled battery control circuit from both the power converter and the battery module, and the assembled battery control circuit is supplied from the power converter in a state where the output voltage of the power converter is higher than the set voltage.
- the connection detector detects that the operating power is supplied from the power converter to the assembled battery control circuit, and the battery module also supplies the operating power to the assembled battery control circuit to convert the power.
- the operating power is supplied to the assembled battery control circuit from both the device and the battery module. In this state, when the voltage of the battery module drops or the like causes an over-discharge state, the discharge stop determination unit detects this and stops the power supply from the battery module. Therefore, the battery module does not become over-discharged, and the battery module can also supply power to the assembled battery control circuit.
- the power converter can supply power to the assembled battery control circuit to keep the assembled battery control circuit in an operating state.
- the power converter outputs a predetermined voltage to charge the battery module. Therefore, in this state, the output from the power converter can supply the operating power to the assembled battery control circuit. .. Therefore, the above power storage device can supply operating power in an ideal state from both the power conversion device and the battery module.
- the power supply device includes a power conversion device in which power is supplied from a commercial power source to supply power to a load, and a battery module including a plurality of rechargeable battery cells and a battery control circuit.
- a DC / DC converter that supplies operating power to the battery control circuit, a switching circuit that switches the connection between the power converter and the battery module, and a connection detector that detects the power supply from the power converter to the assembled battery control circuit. It is equipped with a discharge stop determination unit in the discharge stop state of the battery module.
- the switching circuit is a connection from a connection detection unit that connects the power converter to the DC / DC converter and detects the connection between the power converter and the DC / DC converter when the output voltage of the power converter is higher than the set voltage.
- the battery module is connected to the DC / DC converter by a signal, and the connection between the battery module and the DC / DC converter is cut off by the discharge stop signal from the discharge stop determination unit.
- the switching circuit sets the output voltage of the power conversion device to the set voltage and the first power switch in which the switching circuit is connected between the power conversion device and the DC / DC converter.
- it includes a first input circuit that controls the first power switch on and off.
- the first input circuit supplies power from the power converter to the DC / DC converter with the first power switch turned on when the output voltage of the power converter is higher than the set voltage, and the output voltage of the power converter.
- the first power switch is switched to the off state when the voltage is lower than the set voltage, and the power supply from the power converter to the DC / DC converter is cut off.
- a fifth embodiment of the present invention includes a first control switch in which the first input circuit is controlled on and off by the output voltage of the power converter to switch the first power switch on and off.
- the first control switch and the first power switch are FETs, and the FET of the first control switch controls the first power switch to be a power conversion device. Controls the power supply to the DC / DC converter.
- the power storage device is a second power switch in which a switching circuit is connected between a battery module and a DC / DC converter, and a connection signal of a connection detection unit. It is equipped with a second input circuit that controls the power switch on and off.
- the power storage device includes a second control switch in which the second input circuit is switched by a connection signal from the connection detection unit to control the second power switch on and off. There is.
- the switching circuit is a second power switch connected between the battery module and the DC / DC converter, and a discharge stop signal from the discharge stop determination unit. It includes a second input circuit that controls the second power switch off.
- the second input circuit is switched by the discharge stop signal from the discharge stop determination unit to control the second power switch to be turned off. I have.
- the second power switch and the second control switch are FETs, and the FET of the second control switch controls the second power switch from the battery module. It controls the power supply to the DC / DC converter.
- a backflow prevention diode is connected between the output side of the power conversion device and the DC / DC converter, and further, between the output side of the battery module and the DC / DC converter. Is also connected to a backflow prevention diode.
- the power storage device includes a converter in which the power conversion device charges the battery module with commercial power, and a DC / AC inverter that supplies the power of the battery module to the load.
- the power storage device 100 of FIG. 1 includes a power conversion device 2 to which power is supplied from a commercial power source 9 to supply power to a load 8, a battery module 1 including a plurality of rechargeable battery cells 11 and an assembled battery control circuit 12.
- a switching circuit 3 for switching the supply of power from the power converter 2 and the battery module 1 to the assembled battery control circuit 12, and a state in which power is supplied from the power converter 2 to the assembled battery control circuit 12 are detected and a connection signal is output. It includes a connection detection unit 5 that outputs power, and a discharge stop determination unit 6 that detects that the discharged battery module 1 is in a discharge stop state and outputs a discharge stop signal.
- the battery module 1 includes an assembled battery 10 connected to a plurality of rechargeable battery cells 11 and an assembled battery control circuit 12 connected to the assembled battery 10 to control charging / discharging of the assembled battery 10.
- the present invention does not specify the circuit configuration of the assembled battery control circuit 12, but the assembled battery control circuit 12 detects, for example, the voltage and the remaining capacity of the assembled battery 10 and the battery cell 11, or the battery cell 11. It is provided with a protection circuit such as a circuit for equalizing the voltage and the remaining capacity of the assembled battery 10 and a charge / discharge control circuit.
- the power conversion device 2 supplies the electric power supplied from the commercial power source 9 to the battery module 1 to charge the battery module 1.
- the power conversion device 2 includes a converter 21 that converts commercial power into the charging voltage of the battery module 1, and a DC / AC inverter 22 that converts the direct current output from the battery module 1 into an AC voltage supplied to the load 8. There is.
- a load 8 is connected to the output side of the DC / AC inverter 22.
- the power conversion device 2 is provided with a bus line 23 that directly supplies the commercial power source 9 to the load 8. In a state where the commercial power is supplied, the power conversion device 2 supplies the power to the load 8 via the bus line 23.
- the power supply circuit of the assembled battery control circuit 12 is connected to the power converter 2 and the battery module 1 via the DC / DC converter 4 and the switching circuit 3, and is DC from either or both of the power converter 2 and the battery module 1.
- DC operating power is supplied via the / DC converter 4.
- the DC / DC converter 4 converts, for example, a high voltage of the power converter 2 or the battery module 1, for example, 400V to 600V, into a power supply voltage of the assembled battery control circuit 12, for example, a direct current of 24V to 5V, and outputs the voltage.
- the switching circuit 3 switches a state in which operating power is supplied to the assembled battery control circuit 12 from either or both of the power conversion device 2 and the battery module 1 via the DC / DC converter 4.
- the switching circuit 3 supplies operating power from the power conversion device 2 to the assembled battery control circuit 12 in a state where the output voltage of the power conversion device 2 is higher than the set voltage.
- the connection detection unit 5 detects a state in which the power conversion device 2 starts supplying power to the assembled battery control circuit 12.
- the connection detection unit 5 detects the start of power supply from the power conversion device 2, it outputs a connection signal to the switching circuit 3.
- the switching circuit 3 When a connection signal is input from the connection detection unit 5 to the switching circuit 3, the switching circuit 3 starts supplying operating power from the battery module 1 to the assembled battery control circuit 12.
- the battery module 1 When power is supplied from the battery module 1 to the assembled battery control circuit 12, the battery module 1 is discharged, and the discharge stop determination unit 6 detects the discharge stop state of the battery module 1, the discharge stop determination unit 6 sends the switching circuit 3 to the switching circuit 3. Outputs a discharge stop signal.
- the switching circuit 3 stops the power supply from the battery module 1 to the assembled battery control circuit 12.
- the discharge stop determination unit 6 stores the condition for stopping the discharge of the battery module 1.
- the discharge stop signal is output to the switching circuit 3, and the switching circuit 3 outputs the discharge stop signal to the battery module 1.
- the power supply to the assembled battery control circuit 12 is stopped.
- the switching circuit 3 shown in FIG. 2 switches the connection between the DC / DC converter 4, the power converter 2 and the battery module 1, supplies power from the power converter 2 to the assembled battery control circuit 12, and the battery module 1. Controls the power supply to the assembled battery control circuit 12.
- the switching circuit 3 of FIG. 2 controls the power supply from the power converter 2 to the DC / DC converter 4 with the first power switch 31.
- the first power switch 31 is controlled on and off by the first input circuit 32.
- the first input circuit 32 compares the output voltage of the power conversion device 2 with the set voltage, and controls the first power switch 31 on and off.
- the first power switch 31 is an n-channel power MOSFET, which is connected between the negative output terminal of the power converter 2 and the DC / DC converter 4.
- the first power switch 31 connects the backflow prevention diode 33 in series, and connects the negative side of the power converter 2 to the DC / DC converter 4 via a series circuit of the first power switch 31 and the backflow prevention diode 33. You are connected.
- the first power switch 31 is controlled on and off by the first input circuit 32, supplies power from the power converter 2 to the DC / DC converter 4 in the on state, and is a battery control circuit from the DC / DC converter 4. 12 is supplied with operating power.
- the first power switch 31 cuts off the power supply to the DC / DC converter 4 in the off state, and stops the power supply from the power converter 2 to the assembled battery control circuit 12.
- the first input circuit 32 supplies power from the power converter 2 to the DC / DC converter 4 with the first power switch 31 turned on when the output voltage of the power converter 2 is higher than the set voltage. Operating power is supplied from the power converter 2 to the assembled battery control circuit 12, and when the output voltage of the power converter 2 is lower than the set voltage, the first power switch 31 is switched to the off state, and the power converter 2 starts the power converter 2.
- the power supply to the DC / DC converter 4, that is, the power supply to the assembled battery control circuit 12 is cut off.
- the set voltage is set lower than the output voltage of the power converter 2 in the state where commercial power is supplied. When the output voltage of the power conversion device 2 is higher than the set voltage, it is connected to the commercial power. In this state, the power conversion device 2 supplies the operating power to the assembled battery control circuit 12.
- the first input circuit 32 includes a first control switch 34 that turns on and off the first power switch 31.
- the first control switch 34 is controlled on and off by the output voltage of the power conversion device 2, and switches the first power switch 31 on and off.
- the first control switch 34 is an n-channel FET, and controls the first power switch 31 on and off by turning on and off the first control FET 34A.
- the first control FET 34A switches the first power switch 31 to the on state when it is on, and turns the first power switch 31 to the off state when it is off.
- the first control FET 34A which is the first control switch 34, connects the gate to the output side of the power conversion device 2 via the first input resistor 35, and is controlled on and off by the output voltage of the power conversion device 2.
- the first control FET 34A connects the drain to the positive output of the power converter 2 via the second input resistor 36 and the source to the ground line 39 via the second input resistor 36.
- the first control FET 34A is switched on and off by the voltage input to the gate from the first input resistor 35, and the first input resistors 35 and 35 are voltage dividing resistors to control the output voltage of the power converter 2. The voltage is divided and input to the gate of the first control FET 34A.
- the first input resistors 35, 35 which are voltage dividing resistors, divide the output voltage of the power conversion device 2 at a specific ratio and input it to the gate of the first control FET 34A.
- the electrical resistance of the voltage dividing resistor divides the output voltage of the power converter 2 to which commercial power is supplied and inputs it to the gate of the first control FET 34A to turn on the first control FET 34A for power conversion.
- the output voltage in a state where commercial power is not supplied to the device 2 is set to a resistance value that turns off the first control FET 34A.
- the first power FET 31A which is the MOSFET of the first power switch 31, is switched to the on state when the first control FET 34A is on.
- the first power FET 31A connects the gate to the drain of the first control FET 34A and inputs the drain voltage of the first control FET 34A.
- the first power FET 31A is switched on and off by the voltage input to the gate from the drain of the first control FET 34A.
- the second input resistors 36, 36 connected in series serve as voltage dividing resistors, and the output voltage of the power converter 2 is divided and input to the gate of the first power FET 31A. ..
- the second input resistors 36, 36 which are voltage dividing resistors, divide the output voltage of the power converter 2 at a specific ratio and input it to the gate of the first power FET 31A.
- the electrical resistance of the voltage dividing resistor is a resistance value that divides the output voltage of the power converter 2 to which commercial power is supplied and inputs it to the gate of the first power FET 31A to turn on the first power FET 31A. Is set to. Therefore, in the on state of the first control FET 34A, the gate voltage (VGS) of the first power FET 31A becomes the on voltage, and in the off state of the first control FET 34A, the voltage input to the gate of the first power FET 31A.
- the first power FET 31A supplies power from the power converter 2 to the DC / DC converter 4 in the on state, and cuts off the power supply from the power converter 2 to the DC / DC converter 4 in the off state.
- connection detection unit 5 detects a state in which power is supplied from the power conversion device 2 to the assembled battery control circuit 12, and outputs a connection signal to the switching circuit 3.
- the switching circuit 3 detects the connection signal input from the connection detection unit 5 and supplies electric power from the battery module 1 to the assembled battery control circuit 12.
- the connection detection unit 5 detects that the power conversion device 2 supplies the operating power to the assembled battery control circuit 12 and activates the assembled battery control circuit 12, and the power conversion device 2 detects that the assembled battery control circuit 12 is activated. Detects that power supply has started and outputs a connection signal. At this time, the connection detection unit 5 outputs a connection signal when the battery module 1 is in a dischargeable state.
- connection detection unit 5 can also detect the ON state of the first control switch 34 or the first power switch 31 of the first input circuit 32 and output the connection signal.
- the connection detection unit 5 has all circuit configurations capable of detecting that the power conversion device 2 has started supplying power to the assembled battery control circuit 12 via the DC / DC converter 4, for example, the DC / DC converter from the power conversion device 2. It is also possible to detect the output current supplied to 4 and output the connection signal.
- the switching circuit 3 may be provided with a dedicated circuit, but is preferably built in the assembled battery control circuit 12.
- the discharge stop determination unit 6 detects a state in which the discharge from the battery module 1 is stopped, and outputs a discharge stop signal to the switching circuit 3.
- the discharge stop determination unit 6 detects, for example, the voltage and the remaining capacity of the battery module 1 to be discharged, and determines whether to allow or stop the discharge of the battery module 1 in order to prevent over-discharge of the battery. When the battery module 1 stops discharging, a discharge stop signal is output.
- the discharge stop determination unit 6 preferably detects the voltage and the remaining capacity of the battery module 1 and outputs a discharge stop signal, but all other parameters for stopping the discharge of the battery module 1, such as the battery temperature, etc. Can be detected and a discharge stop signal can be output.
- the discharge stop determination unit 6 can be built in the assembled battery control circuit 12, or can be provided separately from the assembled battery control circuit 12 as a dedicated circuit configuration.
- the switching circuit 3 of FIG. 2 controls the power supply from the battery module 1 to the DC / DC converter 4 with the second power switch 41.
- the second power switch 41 is controlled on and off by the second input circuit 42.
- the second input circuit 42 is a connection signal input from the connection detection unit 5, starts supplying power from the battery module 1 to the assembled battery control circuit 12, and is a discharge stop signal input from the discharge stop determination unit 6. , The power supply from the battery module 1 to the assembled battery control circuit 12 is stopped.
- the second power switch 41 is turned on by the connection signal input from the connection detection unit 5, power is supplied from the battery module 1 to the DC / DC converter 4, and the assembled battery control circuit is supplied from the battery module 1.
- the discharge stop determination unit 6 detects the discharge stop signal by detecting the voltage and the remaining capacity of the battery module 1 in order to prevent the battery module 1 from over-discharging.
- the second input circuit 42 includes a second control switch 44 and a second power switch 41 that is controlled on and off by the second control switch 44.
- the second control switch 44 is controlled by a connection signal input from the connection detection unit 5.
- the second power switch 41 is controlled on and off by the second control switch 44.
- the second control switch 44 and the second power switch 41 are n-channel FETs, and the second power switch 41 is a power MOSFET.
- the second control switch 44 switches the second power switch 41 to the on state when it is on, and switches the second power switch 41 to the off state when it is off.
- the gate is connected to the connection detection unit 5, the drain is connected to the positive output of the battery module 1 via the fourth input resistor 46, and the source is connected to the fourth input resistor. It is connected to the ground line 49 via 46.
- the second control FET 44A is controlled on and off by a connection signal input from the connection detection unit 5 to the gate.
- the second control FET 44A connects the gate to the output terminal of the battery module 1 via the third input resistor 45, and the third input resistor 45 is a voltage dividing resistor to control the output voltage of the battery module 1. The voltage is divided and input to the gate of the second control FET 44A.
- the third input resistor 45 which is the voltage dividing resistor, controls the second power FET 41A, which is the second power switch 41, via the second control FET 44A in the normal voltage range of the battery module 1.
- the resistance value of the voltage dividing resistor is set to a resistance value that does not turn on the second control FET 44A when the output voltage of the battery module 1 is within the specified range.
- the second input circuit 42 turns on the second control FET 44A while the connection signal is input from the connection detection unit 5 to the gate of the second control FET 44A.
- the second power FET 41A which is the MOSFET of the second power switch 41, is switched to the on state when the second control FET 44A is in the off state.
- the second power FET 41A connects the gate to the drain of the second control FET 44A and inputs the drain voltage of the second control FET 44A.
- the second power FET 41A is switched on and off by the voltage input to the gate from the drain of the second control FET 44A.
- the fourth input resistors 46 and 46 connected in series serve as voltage dividing resistors, divide the output voltage of the battery module 1 and input it to the gate of the second power FET 41A.
- the fourth input resistors 46, 46 which are voltage dividing resistors, divide the output voltage of the battery module 1 at a specific ratio and input it to the gate of the second power FET 41A.
- the electric resistance of the voltage dividing resistor is set to a resistance value that divides the output voltage of the battery module 1 and inputs it to the gate of the second power FET 41A to turn on the second power FET 41A. Therefore, in the on state of the second control FET 44A, the gate voltage (VGS) of the second power FET 41A becomes the on voltage, and in the off state of the second control FET 44A, the voltage input to the gate of the second power FET 41A.
- the second power FET 41A supplies power from the battery module 1 to the DC / DC converter 4 in the on state, and cuts off the power supply from the battery module 1 to the DC / DC converter 4 in the off state.
- the connection detection unit 5 inputs a “High” level connection signal to the gate of the second control FET 44A to enter a second control FET 44A.
- the control FET 44A of the above is turned on, and the second power FET 41A is turned on.
- the discharge stop determination unit 6 inputs a “Low” level discharge stop signal to the gate of the second control FET 44A to turn the second control FET 44A into an off state and turn the second power FET 41A into an off state.
- the discharge stop determination unit 6 inputs a “Low” level discharge stop signal to the gate of the second control FET 44A to turn the second control FET 44A into an off state, and the second control FET 44A in the off state makes a second.
- the power FET 41A of the above is turned off, and the power supply from the battery module 1 to the assembled battery control circuit 12 is stopped.
- a backflow prevention diode 33 is connected between the output side of the power converter 2 and the DC / DC converter 4, and the backflow prevention diode 33 is also connected between the output side of the battery module 1 and the DC / DC converter 4.
- the backflow prevention diode 43 is connected.
- the backflow prevention diodes 33 and 43 are connected in such a direction that the power converter 2 can supply power to the DC / DC converter 4 side and the battery module 1 can supply power to the DC / DC converter 4 side, and the DC / DC The power supply from the converter 4 to the power converter 2 and the battery module 1 is blocked.
- the present invention can be suitably used for various power storage devices as a power supply system and a power storage device capable of stably supplying operating power to a battery control circuit from both commercial power and a battery module.
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Abstract
Description
さらに以下に示す実施形態は、本発明の技術思想の具体例を示すものであって、本発明を以下に限定するものではない。また、以下に記載されている構成部品の寸法、材質、形状、その相対的配置等は、特定的な記載がない限り、本発明の範囲をそれのみに限定する趣旨ではなく、例示することを意図したものである。また、一の実施の形態、実施例において説明する内容は、他の実施の形態、実施例にも適用可能である。また、図面が示す部材の大きさや位置関係等は、説明を明確にするため、誇張していることがある。
図1の蓄電装置100は、商用電源9から電力が供給されて負荷8に電力を供給する電力変換装置2と、充電できる複数の電池セル11と組電池制御回路12を備える電池モジュール1と、電力変換装置2と電池モジュール1から組電池制御回路12への電源電力の供給を切り換える切換回路3と、電力変換装置2から組電池制御回路12に電力供給される状態を検出して接続信号を出力する接続検出部5と、放電している電池モジュール1の放電停止状態となったことを検出して、放電停止信号を出力する放電停止判定部6とを備える。
電池モジュール1は、充電できる複数の電池セル11を接続している組電池10と、組電池10に接続されて組電池10の充放電をコントロールする組電池制御回路12とを備える。本発明は、組電池制御回路12の回路構成を特定するものではないが、この組電池制御回路12は、例えば、組電池10や電池セル11の電圧や残容量を検出し、あるいは電池セル11や組電池10の電圧や残容量を均等化する回路などの保護回路や充放電のコントロール回路を備えている。
電力変換装置2は、商用電源9から供給される電力を電池モジュール1に供給して充電する。蓄電装置100は、商用電力が供給されない状態で負荷8が動作状態になると電池モジュール1から負荷8に電力が供給される。電力変換装置2は、商用電力を電池モジュール1の充電電圧に変換するコンバータ21と、電池モジュール1から出力される直流を負荷8に供給する交流電圧に変換するDC/ACインバータ22とを備えている。DC/ACインバータ22の出力側には、負荷8が接続される。電力変換装置2は商用電源9を直接負荷8に供給するバスライン23を設けて、商用電力が供給される状態では、バスライン23を介して負荷8に電力を供給する。
切換回路3は、電力変換装置2と電池モジュール1のいずれか又両方から、DC/DCコンバータ4を介して組電池制御回路12に動作電力を供給する状態を切り換える。切換回路3は、電力変換装置2の出力電圧が設定電圧よりも高い状態で、電力変換装置2から組電池制御回路12に動作電力を供給する。電力変換装置2から動作電力が供給されると組電池制御回路12が起動し、電力変換装置2から組電池制御回路12に電力供給を開始した状態を接続検出部5が検出する。接続検出部5は、電力変換装置2からの電力供給の開始を検出すると、接続信号を切換回路3に出力する。接続検出部5から切換回路3に接続信号が入力されると、切換回路3は電池モジュール1から組電池制御回路12への動作電力の供給を開始する。電池モジュール1から組電池制御回路12に電力供給して、電池モジュール1が放電されて、放電停止判定部6が電池モジュール1の放電停止状態を検出すると、放電停止判定部6から切換回路3に放電停止信号を出力する。この状態で切換回路3は、電池モジュール1から組電池制御回路12への電力供給を停止する。放電停止判定部6は、電池モジュール1の放電を停止する条件を記憶しており、電池モジュール1がこの状態になると、切換回路3に放電停止信号を出力して、切換回路3が電池モジュール1から組電池制御回路12への電力供給を停止する。
第1のパワースイッチ31はnチャンネルのパワーMOSFETで、電力変換装置2のマイナス側の出力端子とDC/DCコンバータ4との間に接続している。第1のパワースイッチ31は逆流防止ダイオード33を直列に接続して、電力変換装置2のマイナス側を第1のパワースイッチ31と逆流防止ダイオード33との直列回路を介してDC/DCコンバータ4に接続している。第1のパワースイッチ31は第1の入力回路32でオンオフに制御されて、オン状態で電力変換装置2からDC/DCコンバータ4に電力を供給して、DC/DCコンバータ4から組電池制御回路12に動作電力を供給する。第1のパワースイッチ31はオフ状態でDC/DCコンバータ4への電力供給を遮断して、電力変換装置2から組電池制御回路12への電力供給を停止する。
第1の入力回路32は、電力変換装置2の出力電圧が設定電圧よりも高い状態で第1のパワースイッチ31をオン状態として、電力変換装置2からDC/DCコンバータ4に電力供給して、電力変換装置2から組電池制御回路12に動作電力を供給し、電力変換装置2の出力電圧が設定電圧よりも低い状態では第1のパワースイッチ31をオフ状態に切り換えて、電力変換装置2からDC/DCコンバータ4への電力供給、すなわち組電池制御回路12への電力供給を遮断する。設定電圧は、商用電力が供給される状態における電力変換装置2の出力電圧よりも低く設定される。電力変換装置2の出力電圧が設定電圧よりも高い状態は、商用電力に接続された状態となるが、この状態では電力変換装置2から組電池制御回路12に動作電力が供給される。
接続検出部5は、電力変換装置2から組電池制御回路12に電力が供給される状態を検出して、切換回路3に接続信号を出力する。切換回路3は、接続検出部5から入力される接続信号を検出して、電池モジュール1から組電池制御回路12に電力供給する。接続検出部5は、たとえば、電力変換装置2から組電池制御回路12に動作電力が供給されて、組電池制御回路12が起動することを検出して、電力変換装置2から組電池制御回路12に電力供給が開始されたことを検出して接続信号を出力する。このとき、接続検出部5は、電池モジュール1が放電可能な状態にある場合において、接続信号を出力する。ただ、接続検出部5は、第1の入力回路32の第1の制御スイッチ34、又は第1のパワースイッチ31のオン状態を検出して接続信号を出力することもできる。あるいは、接続検出部5は電力変換装置2からDC/DCコンバータ4を介して組電池制御回路12に電力供給を開始したことを検出できるすべの回路構成、たとえば電力変換装置2からDC/DCコンバータ4に供給される出力電流を検出して、接続信号を出力することもできる。切換回路3は、専用の回路を設けることもできるが、好ましくは組電池制御回路12に内蔵することができる。
放電停止判定部6は、電池モジュール1からの放電が停止される状態を検出して、放電停止信号を切換回路3に出力する。放電停止判定部6は、たとえば、放電される電池モジュール1の電圧や残容量を検出して、電池の過放電を防止するために、電池モジュール1の放電を許容するか停止するかを判定して、電池モジュール1が放電を停止する状態では放電停止信号を出力する。放電停止判定部6は、好ましくは、電池モジュール1の電圧や残容量を検出して、放電停止信号を出力するが、電池モジュール1の放電を停止する他の全てのパラメータ、たとえば、電池温度などを検出して放電停止信号を出力することができる。放電停止判定部6は、組電池制御回路12に内蔵することができ、また専用の回路構成として組電池制御回路12と別に設けることもできる。
さらに、図2の切換回路3は、第2のパワースイッチ41で電池モジュール1からDC/DCコンバータ4への電力供給をコントロールする。第2のパワースイッチ41は、第2の入力回路42でオンオフに制御される。第2の入力回路42は、接続検出部5から入力される接続信号で、電池モジュール1から組電池制御回路12への電力供給を開始し、放電停止判定部6から入力される放電停止信号で、電池モジュール1から組電池制御回路12への電力供給を停止する。切換回路3は、接続検出部5から入力される接続信号で第2のパワースイッチ41をオン状態として、電池モジュール1からDC/DCコンバータ4に電力供給して、電池モジュール1から組電池制御回路12に動作電力を供給するが、放電停止判定部6から電池モジュール1の放電停止信号が入力されると、第2のパワースイッチ41をオフ状態に切り換えて、電池モジュール1からDC/DCコンバータ4への電力供給、すなわち組電池制御回路12への電力供給を遮断する。放電停止判定部6は、電池モジュール1が過放電を防止するために、電池モジュール1の電圧や残容量を検出して放電停止信号を検出する。
第2のパワースイッチ41のMOSFETである第2のパワーFET41Aは、第2の制御FET44Aのオフ状態でオン状態に切り換えられる。第2のパワーFET41Aは、ゲートを第2の制御FET44Aのドレインに接続して、第2の制御FET44Aのドレイン電圧を入力している。第2のパワーFET41Aは、第2の制御FET44Aのドレインからゲートに入力される電圧でオンオフに切り換えられる。第2の制御FET44Aのオン状態では、直列に接続される第4の入力抵抗46、46が分圧抵抗となり、電池モジュール1の出力電圧を分圧して第2のパワーFET41Aのゲートに入力する。分圧抵抗である第4の入力抵抗46、46は、電池モジュール1の出力電圧を特定の割合で分圧して、第2のパワーFET41Aのゲートに入力する。分圧抵抗の電気抵抗は、電池モジュール1の出力電圧を分圧して、第2のパワーFET41Aのゲートに入力して、第2のパワーFET41Aをオン状態とする抵抗値に設定される。したがって、第2の制御FET44Aのオン状態では、第2のパワーFET41Aのゲート電圧(VGS)がオン電圧となり、第2の制御FET44Aのオフ状態では、第2のパワーFET41Aのゲートに入力される電圧がカットオフ電圧以下となり、ゲート電圧(VGS)をオフ電圧とする。第2のパワーFET41Aは、オン状態で電池モジュール1からDC/DCコンバータ4に電力を供給して、オフ状態で電池モジュール1からDC/DCコンバータ4への電力供給を遮断する。
1…電池モジュール
2…電力変換装置
3…切換回路
4…DC/DCコンバータ
5…接続検出部
6…放電停止判定部
8…負荷
9…商用電源
10…組電池
11…電池セル
12…組電池制御回路
21…コンバータ
22…DC/ACインバータ
23…バスライン
31…第1のパワースイッチ
31A…第1のパワーFET
32…第1の入力回路
33…逆流防止ダイオード
34…第1の制御スイッチ
34A…第1の制御FET
35…第1の入力抵抗
36…第2の入力抵抗
39…グランドライン
41…第2のパワースイッチ
41A…第2のパワーFET
42…第2の入力回路
43…逆流防止ダイオード
44…第2の制御スイッチ
44A…第2の制御FET
45…第3の入力抵抗
46…第4の入力抵抗
49…グランドライン
Claims (13)
- 充電できる複数の電池セルと組電池制御回路を備える電池モジュールと、
前記電池モジュールを商用電力で充電すると共に、商用電力を負荷に供給する電力変換装置とを備える、
蓄電装置における組電池制御回路の電力供給方式であって、
前記電力変換装置の出力電圧が設定電圧よりも高い状態で、
前記電力変換装置から前記電池モジュールの組電池制御回路に動作電力を供給し、
前記電力変換装置から組電池制御回路に電力供給を開始した状態を検出する接続検出部からの接続信号で、
前記電池モジュールから組電池制御回路への動作電力を開始し、
前記電池モジュールの放電停止状態を検出する放電停止判定部からの停止信号で、
前記電池モジュールから組電池制御回路への電力供給を停止することを特徴とする蓄電装置の組電池制御回路の電力供給方式。 - 商用電源から電力が供給されて負荷に電力を供給する電力変換装置と、
充電できる複数の電池セルと組電池制御回路を備える電池モジュールと、
前記電力変換装置と前記電池モジュールから、
前記組電池制御回路への電源電力の供給を切り換える切換回路と、
前記電力変換装置から前記組電池制御回路への電力供給を検出する接続検出部と、
前記電池モジュールの放電停止状態の放電停止判定部とを備え、
前記切換回路は、
前記電力変換装置の出力電圧が設定電圧よりも高い状態で、
前記電力変換装置から前記組電池制御回路に電力を供給し、
前記電力変換装置から組電池制御回路への電力供給を検出する状態で、
前記接続検出部からの接続信号で、
前記電池モジュールから前記組電池制御回路に動作電力を供給し、
前記放電停止判定部からの放電停止信号で、
前記電池モジュールから前記組電池制御回路への電力供給を停止することを特徴とする蓄電装置。 - 商用電源から電力が供給されて負荷に電力を供給する電力変換装置と、
充電できる複数の電池セルと組電池制御
回路を備える電池モジュールと、
前記組電池制御回路に動作電力を供給するDC/DCコンバータと、
前記電力変換装置及び前記電池モジュールとの接続を切り換える切換回路と、
前記電力変換装置から前記組電池制御回路への電力供給を検出する接続検出部と、
前記電池モジュールの放電停止状態の放電停止判定部とを備え、
前記切換回路は、
前記電力変換装置の出力電圧が設定電圧よりも高い状態で、
前記電力変換装置を前記DC/DCコンバータに接続し、
前記電力変換装置と前記DC/DCコンバータの接続を検出する前記接続検出部からの接続信号で、
前記電池モジュールを前記DC/DCコンバータに接続し、
前記放電停止判定部からの放電停止信号で、
前記電池モジュールと前記DC/DCコンバータの接続を遮断することを特徴とする蓄電装置。 - 請求項3に記載する蓄電装置であって、
前記切換回路が、
前記電力変換装置と前記DC/DCコンバータとの間に接続してなる第1のパワースイッチと、
前記電力変換装置の出力電圧を設定電圧に比較して、
前記第1のパワースイッチをオンオフに制御する第1の入力回路を備え、
前記第1の入力回路は、
前記電力変換装置の出力電圧が設定電圧よりも高い状態で前記第1のパワースイッチをオン状態として、
前記電力変換装置から前記DC/DCコンバータに電力供給し、
前記電力変換装置の出力電圧が設定電圧よりも低い状態で前記第1のパワースイッチをオフ状態に切り換えて、
前記電力変換装置から前記DC/DCコンバータへの電力供給を遮断することを特徴とする蓄電装置。 - 請求項4に記載する蓄電装置であって、
前記第1の入力回路が、
前記電力変換装置の出力電圧でオンオフに制御されて、
前記第1のパワースイッチをオンオフに切り換える、第1の制御スイッチを備えることを特徴とする蓄電装置。 - 請求項5に記載する蓄電装置であって、
前記第1の制御スイッチと前記第1のパワースイッチがFETで、
前記第1の制御スイッチのFETが、前記第1のパワースイッチを制御して、
前記電力変換装置から前記DC/DCコンバータへの電力供給を制御してなることを特徴とする蓄電装置。 - 請求項3に記載する蓄電装置であって、
前記切換回路が、
前記電池モジュールと前記DC/DCコンバータとの間に接続してなる第2のパワースイッチと、
前記接続検出部の接続信号で、
前記第2のパワースイッチをオンオフに制御する第2の入力回路とを備えることを特徴とする蓄電装置。 - 請求項7に記載する蓄電装置であって、
前記第2の入力回路が、
前記接続検出部からの接続信号で切り換えられて、
前記第2のパワースイッチをオンオフに制御する第2の制御スイッチを備えることを特徴とする蓄電装置。 - 請求項3に記載する蓄電装置であって、
前記切換回路が、
前記電池モジュールと前記DC/DCコンバータとの間に接続してなる第2のパワースイッチと、
前記放電停止判定部からの放電停止信号で、
前記第2のパワースイッチをオフに制御する第2の入力回路とを備えることを特徴とする蓄電装置。 - 請求項9に記載する蓄電装置であって、
前記第2の入力回路が、
前記放電停止判定部からの放電停止信号で切り換えられて、
前記第2のパワースイッチをオフに制御する第2の制御スイッチを備えることを特徴とする蓄電装置。 - 請求項8または10に記載する蓄電装置であって、
前記第2のパワースイッチと前記第2の制御スイッチがFETで、
前記第2の制御スイッチのFETが、前記第2のパワースイッチを制御して、
前記電池モジュールから前記DC/DCコンバータへの電力供給を制御してなることを特徴とする蓄電装置。 - 請求項3ないし11のいずれかに記載する蓄電装置であって、
前記電力変換装置の出力側と前記DC/DCコンバータとの間に、
逆流防止ダイオードが接続され、さらに、
前記電池モジュールの出力側と前記DC/DCコンバータの間にも、
逆流防止ダイオードが接続されてなることを特徴とする蓄電装置。 - 請求項2ないし11のいずれかに記載する蓄電装置であって、
前記電力変換装置が、
商用電力で前記電池モジュールを充電するコンバータと、
前記電池モジュールの電力を負荷に供給するDC/ACインバータとを備える蓄電装置。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202180015792.8A CN115152121A (zh) | 2020-03-30 | 2021-03-24 | 蓄电装置的电池组控制电路的电力供给方式及蓄电装置 |
| US17/911,265 US12412938B2 (en) | 2020-03-30 | 2021-03-24 | Electric power supply system for battery assembly control circuit of electricity storage device, and electricity storage device |
| JP2022512015A JP7682162B2 (ja) | 2020-03-30 | 2021-03-24 | 蓄電装置の組電池制御回路の電力供給方式、及び蓄電装置 |
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| JP (1) | JP7682162B2 (ja) |
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| WO (1) | WO2021200445A1 (ja) |
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| EP3989423B1 (en) * | 2019-06-20 | 2023-05-24 | Mitsubishi Electric Corporation | Power conversion system |
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| WO2015186282A1 (ja) * | 2014-06-03 | 2015-12-10 | ソニー株式会社 | 電力供給装置および電力供給方法 |
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| US7939968B2 (en) * | 2004-08-31 | 2011-05-10 | American Power Conversion Corporation | Method and apparatus for providing uninterruptible power |
| JP4937146B2 (ja) | 2008-01-22 | 2012-05-23 | 三洋電機株式会社 | 車両用の電源装置 |
| JP2012065518A (ja) | 2010-09-17 | 2012-03-29 | Toshiba Corp | 組電池モジュール、二次電池装置、および、車両 |
| US9231440B2 (en) * | 2012-04-18 | 2016-01-05 | Samsung Sdi Co., Ltd. | Power supply apparatus and controlling method of the same |
| JP6324575B1 (ja) | 2017-04-06 | 2018-05-16 | 三菱電機株式会社 | 電力変換装置 |
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| US12412938B2 (en) | 2025-09-09 |
| US20230099799A1 (en) | 2023-03-30 |
| JPWO2021200445A1 (ja) | 2021-10-07 |
| CN115152121A (zh) | 2022-10-04 |
| JP7682162B2 (ja) | 2025-05-23 |
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