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CN106160161B - A kind of solar energy power source apparatus and control method - Google Patents

A kind of solar energy power source apparatus and control method Download PDF

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Publication number
CN106160161B
CN106160161B CN201610530460.4A CN201610530460A CN106160161B CN 106160161 B CN106160161 B CN 106160161B CN 201610530460 A CN201610530460 A CN 201610530460A CN 106160161 B CN106160161 B CN 106160161B
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China
Prior art keywords
module
super
control
voltage
battery pack
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CN201610530460.4A
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Chinese (zh)
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CN106160161A (en
Inventor
彭乐乐
郑树彬
柴晓冬
杨俭
李立明
袁天辰
张雯柏
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Publication of CN106160161B publication Critical patent/CN106160161B/en
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Classifications

    • 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
    • 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
    • H02J7/345—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering using capacitors as storage or buffering devices

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明涉及一种太阳能电源装置及控制方法，所述装置包括：太阳能电池板，用于接收太阳能并将其转化为电能；超级电容模块，与太阳能电池板连接，用于储存电能；电池存储模块，与超级电容模块连接，用于电能；总控模块，分别与超级电容模块和电池存储模块连接，用于控制超级电容模块和电池存储模块在充电和放电之间切换；直流变换单元，分别与总控模块和负载连接，用于切换直流输出的状态；所述方法包括：超级电容组在电压大于开启阈值电压时为负载供电，在电压大于开启电压时为电池组充电，在电压低于最低阈值电压时充电并控制电池组为负载充电。与现有技术相比，本发明具有发电效率高、使用寿命长、通用性好以及使用价值高等优点。

The invention relates to a solar power supply device and a control method. The device comprises: a solar cell panel for receiving solar energy and converting it into electrical energy; a super capacitor module for connecting with the solar cell panel for storing electrical energy; a battery storage module , connected with the supercapacitor module for electric energy; the master control module is connected with the supercapacitor module and the battery storage module respectively, and is used to control the switching between the supercapacitor module and the battery storage module between charging and discharging; the DC conversion unit is connected with the The master control module is connected to the load for switching the state of the DC output; the method includes: when the voltage of the supercapacitor group is greater than the turn-on threshold voltage, power is supplied to the load, when the voltage is greater than the turn-on voltage, the battery pack is charged, and when the voltage is lower than the minimum voltage Charge at the threshold voltage and control the battery pack to charge the load. Compared with the prior art, the invention has the advantages of high power generation efficiency, long service life, good versatility and high use value.

Description

A kind of solar energy power source apparatus and control method
Technical field
The present invention relates to distributed photovoltaic power generation fields, more particularly, to a kind of solar energy power source apparatus and control method.
Background technique
Wireless sensing and Remote Monitoring Technology are to ensure one of the important means of social production.Because geographical and current conditions Limitation, most wireless sensing and long-range monitoring node can not obtain alternating current.It is for its power supply using solar energy generation technology A kind of ideal measure.However, being limited by generating efficiency and energy-storage battery service life, sun-generated electric power is caused to be difficult Realize long term monitoring.Sun-generated electric power generating efficiency how is improved, extends the service life of system, has become sun-generated electric power The problem of paying the utmost attention to.
Patent CN2636433Y provides a kind of sun-generated electric power control device, detects solar-electricity by detection module The state of pond group and battery group directly controls solar-electricity when the solar battery group energy is enough using central processing unit Chi Zuwei load charging, in solar battery group energy deficiency using battery group to load charging, and meanwhile it is vacant loading Shi Liyong solar battery group is battery charging, and this sun-generated electric power controller can greatly improve charge efficiency. However, the invention is that energy-storage units easily cause storage on the one hand when solar panel energy is excessive only with battery group There is the waste that empty full phenomenon causes energy in battery pack；Another aspect battery group is constantly in charging and discharging state, increases The charge and discharge number of battery, reduces the service life of device.
Summary of the invention
The purpose of the present invention is provide regarding to the issue above a kind of generating efficiency height, long service life, versatility it is good and The high solar energy power source apparatus of use value and control method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of solar energy power source apparatus can be electric energy come for load supplying, the sun-generated electric power dress by conversion solar It sets and includes:
Solar panel, for receiving solar energy and being translated into electric energy；
Super-capacitor module is connect with solar panel, for storing the electric energy of solar panel conversion；
Battery storage module is connect with super-capacitor module, for storing the electric energy of super-capacitor module；
Top control module is connect with super-capacitor module and battery storage module respectively, for control super-capacitor module and Battery storage module switches between charging and discharging；
DC converting unit connects respectively with top control module and load, for switching the state of direct current output.
The super-capacitor module includes:
Super capacitor group is connect with battery storage module and top control module respectively, for being load and battery storage module Power supply；
Solar charging electric control and protection location, connect with solar panel and super capacitor group respectively, for being super Grade capacitance group powers and controls the charged state of super capacitor group.
The charged state of the super capacitor group includes maximum power charging, constant-voltage charge and stops charging.
The battery storage module includes:
Battery pack is connect with top control module, for being load supplying；
Battery pack charge control and protection location, connect with super-capacitor module and top control module respectively, for being battery Group powers and controls the charged state of battery pack.
The charged state of the battery pack includes charging and stops charging.
The top control module includes:
Control centre connect with super-capacitor module, battery storage module and DC converting unit respectively, super for controlling Grade capacitance module and battery storage module switch between charging and discharging；
Switch block is connect with control centre, super-capacitor module, battery storage module and DC converting unit respectively, For the on-off according to the command control circuit of control centre.
The switch block include first switch, second switch and third switch, the first switch respectively with super electricity Molar block, control centre connect with DC converting unit, the second switch respectively with super-capacitor module, battery storage module It is connected with control centre, the third switch is connect with battery storage module, control centre and DC converting unit respectively.
A kind of control method of solar energy power source apparatus, the control method include the following steps:
1) the voltage U of top control module acquisition super capacitor groupdc, judge whether it is greater than turn-on threshold voltage Uref1If Then super capacitor group is load supplying, if otherwise entering step 2)；
2) judge super capacitor group voltage UdcWhether cut-in voltage U is greater thanref2If then super capacitor group controls battery pack Charge control and protection location are battery pack charging, if otherwise entering step 3)；
3) judge super capacitor group voltage UdcWhether lowest threshold voltage U is less thanref3If then solar charging electric control and Protection location is that super capacitor group charges and enters step 4), if otherwise return step 1)；
4) judge battery voltage UbatWhether given battery voltage value U is higher thanbat_refIf then battery pack is load Power supply, if otherwise battery pack stops being load supplying.
The battery pack charge control and protection location are that battery pack charging includes the following steps:
21) battery pack charge control and protection location acquire super capacitor group voltage Udc, judge whether it is greater than unlatching electricity Press Uref2It is rejudged if otherwise returning, if entering step 22)；
22) battery pack charge control and protection location charge to battery pack；
23) battery pack charge control and protection location acquire battery voltage Ubat, judge whether it is greater than protection voltage Ubat_TIf then stopping charging to battery pack, if otherwise return step 21).
The solar charging electric control and protection location are that super capacitor group charging includes the following steps:
31) solar charging electric control and protection location acquire super capacitor group voltage Udc；
32) given super capacitor group voltage U is calculateddc_refWith super capacitor group voltage UdcDifference Udc_ref-Udc；
33) judgment step 32) whether the difference that is calculated be greater than first threshold voltage Udc1If then solar recharging Control and protection location are charged with maximum power to super capacitor group, if otherwise entering step 34)；
34) judgment step 32) whether the difference that is calculated be greater than second threshold voltage Udc2If then solar recharging Control and protection location are charged with Isobarically Control mode to super capacitor group, if otherwise entering step 35)；
35) judgment step 32) whether the difference that is calculated be greater than third threshold voltage Udc3If then solar recharging Control and protection location stop charging to super capacitor group, if otherwise return step 31).
Compared with prior art, the invention has the following advantages:
(1) super capacitor group can directly be load supplying in energy abundance, at the same for battery pack charge, the energy not It can be charged by solar panel when sufficient, battery pack can be load supplying, maximum limit in own power abundance Solar power generation is utilized in degree, improves the generating efficiency of sun-generated electric power.
(2) super capacitor group charge and discharge are often and the service life is long, it is possible to reduce the charge and discharge number of battery pack improves The service life of whole device.
(3) it is equipped with solar charging electric control and protection location, super capacitor group can be effectively prevented and overcharged, is ensured The service life of super capacitor group.
(4) it is equipped with battery pack charge control and protection location, can control the charging of battery pack and stops charging, prevents electricity Pond group overcharges, and protects the service life of battery pack.
(5) it is equipped with DC converting unit, a variety of direct current outputs may be implemented, so that whole device has good versatility And use value.
(6) by the control method of solar energy power source apparatus, super capacitor group may be implemented in solar energy abundance to negative Power supply is carried, it is super capacitor group when solar energy is inadequate that super capacitor group, which is battery pack charging, when solar energy is more sufficient Charging, while being load charging using battery pack, it is adapted to any weather condition, can be carried out with maximum efficiency to the sun makes With.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the control flow chart of a kind of solar charging electric control provided by the invention and protection location；
Fig. 3 is the control flow chart of a kind of battery pack charge control provided by the invention and protection location；
Fig. 4 is the control flow chart of a kind of sun-generated electric power energy scheduling and management provided by the invention；
Wherein, 1 is solar panel, and 2 be solar charging electric control and protection location, and 3 be super capacitor group, and 4 be electricity Pond group charge control and protection location, 5 be battery pack, and 6 be control centre, and 7 be DC converting unit.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to Following embodiments.
It can be electric energy come for load by conversion solar as shown in Figure 1, the present invention provides a kind of solar energy power source apparatus Power supply, which includes: solar panel 1, for receiving solar energy and being translated into electric energy；Super electricity Molar block is connect with solar panel 1, for storing the electric energy of the conversion of solar panel 1；Battery storage module is and super Grade capacitance module connection, for storing the electric energy of super-capacitor module；Top control module is deposited with super-capacitor module and battery respectively Module connection is stored up, is switched between charging and discharging for controlling super-capacitor module and battery storage module；DC converting list Member 7 connects respectively with top control module and load, for switching the state of direct current output.
Wherein, super-capacitor module includes: super capacitor group 3, is connect respectively with battery storage module and top control module, is used It powers in for load and battery storage module；Solar charging electric control and protection location 2, respectively with solar panel 1 and super Grade capacitance group 3 connects, for the charged state of super capacitor group 3 to be powered and controlled for super capacitor group 3.
Battery storage module includes: battery pack 5, is connect with top control module, for being load supplying；Battery pack charge control And protection location 4, it is connect respectively with super-capacitor module and top control module, for powering for battery pack 5 and controlling battery pack 5 Charged state.
Top control module includes: control centre 6, respectively with super-capacitor module, battery storage module and DC converting unit 7 Connection, switches between charging and discharging for controlling super-capacitor module and battery storage module；Switch block, respectively with control Center 6, super-capacitor module, battery storage module and DC converting unit 7 processed connect, for the order according to control centre 6 The on-off of control circuit.Switch block include first switch, second switch and third switch, first switch respectively with super capacitor Module, control centre 6 and DC converting unit 7 connect, second switch respectively with super-capacitor module, battery storage module and control Center 6 processed connects, and third switch is connect with battery storage module, control centre 6 and DC converting unit 7 respectively.
Specific connection type are as follows: solar charging electric control and the input of protection location 2 terminate solar panel 1, defeated Super capacitor group 3 is terminated out.The input terminal of 5 charge control of battery pack and protection location 4 accesses super electricity by second switch K2 Appearance group 3, output end are battery pack 5.Super capacitor group 3 is connected by first switch K1 with DC converting unit 7, and battery pack 5 is logical Third switch K3 is crossed to be connected with DC converting unit 7.
The workflow of above-mentioned solar energy power source apparatus is as shown in figure 4, specific steps are as follows:
S1) top control module acquires 3 voltage U of super capacitor groupdc, judge whether it is greater than turn-on threshold voltage Uref1If It is then closed first switch K1, super capacitor group 3 is load supplying, if otherwise entering step 2)；
S2) judge 3 voltage U of super capacitor groupdcWhether cut-in voltage U is greater thanref2If being then closed second switch K2, surpass Grade capacitance group 3 controls battery pack charge control and protection location 4 for the charging of battery pack 5, if otherwise entering step 3)；
S3) judge 3 voltage U of super capacitor groupdcWhether lowest threshold voltage U is less thanref3If then disconnecting first switch K1 With second switch K2 and enter step 4), if otherwise return step 1)；
S4) judge 5 voltage U of battery packbatWhether given battery pack 5 voltage value U is higher thanbat_refIf being then closed third to open K3 is closed, battery pack 5 is load supplying, if otherwise showing solar energy power source apparatus off-capacity, disconnection first switch K1, second are opened Close K2 and third switch K3.
In solar energy power source apparatus proposed by the present invention, the workflow of solar charging electric control and protection location 2 is then such as Shown in Fig. 2, specific steps are as follows:
S21) solar charging electric control and protection location 2 acquire 3 voltage U of super capacitor groupdc；
S22 given 3 voltage U of super capacitor group) is calculateddc_refWith 3 voltage U of super capacitor groupdcDifference Udc_ref-Udc；
S23) judgment step 22) whether the difference that is calculated be greater than first threshold voltage Udc1If then solar recharging Control and protection location 2 are charged with maximum power to super capacitor group 3, if otherwise entering step 24)；
S24) judgment step 22) whether the difference that is calculated be greater than second threshold voltage Udc2If then solar recharging Control and protection location 2 are charged with Isobarically Control mode to super capacitor group 3, if otherwise entering step 25)；
S25) judgment step 22) whether the difference that is calculated be greater than third threshold voltage Udc3If then solar recharging Control and protection location 2 stop charging to super capacitor group 3, if otherwise return step 21).
Battery pack charge control and the workflow of protection location 4 are then as shown in figure 3, specific steps are as follows:
S31) battery pack charge control and protection location 4 acquire 3 voltage U of super capacitor groupdc, judge whether it is greater than unlatching Voltage Uref2It is rejudged if otherwise returning, if entering step 32)；
S32) second switch K2 is closed, and battery pack charge control and protection location 4 charge to battery pack 5；
S33) battery pack charge control and protection location 4 acquire 5 voltage U of battery packbat, judge whether it is greater than protection electricity Press Ubat_TIf then disconnecting second switch K2, stop charging to battery pack 5, if otherwise return step 31).
Threshold voltage in above-mentioned steps is determined according to the actual conditions of super capacitor group and battery pack, and threshold value is passed through The setting of voltage can maximally utilise the energy of solar energy, while also can protect super capacitor group and battery pack, keep away Exempt to overcharge the damage for causing its service life.

Claims (4)

  1. It can be electric energy come for load supplying, feature exists by conversion solar 1. a kind of control method of solar energy power source apparatus In the solar energy power source apparatus includes:
    Solar panel, for receiving solar energy and being translated into electric energy,
    Super-capacitor module is connect with solar panel, for storing the electric energy of solar panel conversion,
    Battery storage module is connect with super-capacitor module, for storing the electric energy of super-capacitor module,
    Top control module is connect with super-capacitor module and battery storage module respectively, for controlling super-capacitor module and battery Memory module switches between charging and discharging,
    DC converting unit, respectively with top control module and load connect, input terminal respectively with super-capacitor module and battery storage Module connection, for switching the state of direct current output；
    The super-capacitor module includes:
    Super capacitor group is connect with battery storage module and top control module respectively, for powering for load and battery storage module,
    Solar charging electric control and protection location, connect with solar panel and super capacitor group respectively, for being super electricity Appearance group powers and controls the charged state of super capacitor group；
    The battery storage module includes:
    Battery pack is connect with top control module, for being load supplying,
    Battery pack charge control and protection location, connect with super-capacitor module and top control module respectively, for supplying for battery pack Electricity and the charged state for controlling battery pack；
    The control method includes the following steps:
    1) the voltage U of top control module acquisition super capacitor groupdc, judge whether it is greater than turn-on threshold voltage Uref1If then surpassing Grade capacitance group is load supplying, if otherwise entering step 2),
    2) judge super capacitor group voltage UdcWhether cut-in voltage U is greater thanref2If then super capacitor group is charged by battery pack Control and protection location are battery pack charging, if otherwise entering step 3),
    3) judge super capacitor group voltage UdcWhether lowest threshold voltage U is less thanref3If then solar charging electric control and protection It is that super capacitor group charges and enters step 4) that unit, which is based on solar panel, if otherwise return step 1),
    4) judge battery voltage UbatWhether given battery voltage value U is higher thanbat_refIf then battery pack is load supplying, If otherwise battery pack stops being load supplying；
    The solar charging electric control and protection location are that super capacitor group charging includes the following steps:
    31) solar charging electric control and protection location acquire super capacitor group voltage Udc,
    32) given super capacitor group voltage U is calculateddc_refWith super capacitor group voltage UdcDifference Udc_ref-Udc；
    33) judgment step 32) whether the difference that is calculated be greater than first threshold voltage Udc1If then solar charging electric control And protection location is charged with maximum power to super capacitor group, if otherwise entering step 34),
    34) judgment step 32) whether the difference that is calculated be greater than second threshold voltage Udc2If then solar charging electric control And protection location is charged with Isobarically Control mode to super capacitor group, if otherwise entering step 35),
    35) judgment step 32) whether the difference that is calculated be greater than third threshold voltage Udc3If then solar charging electric control And protection location stops charging to super capacitor group, if otherwise return step 31).
  2. 2. the control method of solar energy power source apparatus according to claim 1, which is characterized in that the battery pack charging control System and protection location are that battery pack charging includes the following steps:
    21) battery pack charge control and protection location acquire super capacitor group voltage Udc, judge whether it is greater than cut-in voltage Uref2It is rejudged if otherwise returning, if entering step 22)；
    22) battery pack charge control and protection location charge to battery pack；
    23) battery pack charge control and protection location acquire battery voltage Ubat, judge whether it is greater than protection voltage Ubat_T, If then stopping charging to battery pack, if otherwise return step 21).
  3. 3. the control method of solar energy power source apparatus according to claim 1, which is characterized in that the top control module packet It includes:
    Control centre connect, for controlling super electricity respectively with super-capacitor module, battery storage module and DC converting unit Molar block and battery storage module switch between charging and discharging；
    Switch block connect with control centre, super-capacitor module, battery storage module and DC converting unit respectively, is used for According to the on-off of the command control circuit of control centre.
  4. 4. the control method of solar energy power source apparatus according to claim 3, which is characterized in that the switch block includes First switch, second switch and third switch, the first switch respectively with super-capacitor module, control centre and DC converting Unit connection, the second switch are connect with super-capacitor module, battery storage module and control centre respectively, and the third is opened Pass is connect with battery storage module, control centre and DC converting unit respectively.
CN201610530460.4A 2016-07-07 2016-07-07 A kind of solar energy power source apparatus and control method Expired - Fee Related CN106160161B (en)

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CN108287590A (en) * 2018-01-14 2018-07-17 宁波山迪光能技术有限公司 A kind of solar cell power control system and its control method
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CN111600371A (en) * 2020-04-29 2020-08-28 毕诗捷 A method and device for automatic control of solar supercapacitor power supply
CN111711259A (en) * 2020-07-06 2020-09-25 暨南大学 Photovoltaic micro-energy acquisition system and its hybrid energy storage automatic charging and discharging control method
CN112436586A (en) * 2020-11-26 2021-03-02 石家庄科林电气股份有限公司 Power supply system based on double super capacitor sets
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