CN201937502U - Solar electricity-supply device - Google Patents

Solar electricity-supply device Download PDF

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Publication number
CN201937502U
CN201937502U CN2010206312076U CN201020631207U CN201937502U CN 201937502 U CN201937502 U CN 201937502U CN 2010206312076 U CN2010206312076 U CN 2010206312076U CN 201020631207 U CN201020631207 U CN 201020631207U CN 201937502 U CN201937502 U CN 201937502U
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CN
China
Prior art keywords
switch
power supply
control module
solar power
battery
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Expired - Lifetime
Application number
CN2010206312076U
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Chinese (zh)
Inventor
尹韶文
宋峰
卢俊
颜阳
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN2010206312076U priority Critical patent/CN201937502U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model provides a solar electricity-supply device which comprises a control module, a solar battery array, a voltage-boosting DC (direct current)-DC, a voltage-reducing DC-DC, a battery set, a battery manager, a first switch, a second switch, a third switch, a fourth switch and a fifth switch, wherein the solar battery array is connected with one end of the second switch by the first switch and the voltage-boosting DC-DC, the other end of the second switch is connected with one end of the fourth switch and one end of the third switch respectively, the other end of the fourth switch is connected a with charging interface through the voltage-reducing DC-DC and the fifth switch, the other end of the third switch is connected with the battery manager by the battery set, the control module is connected with the voltage-boosting DC-DC, the voltage-reducing DC-DC and the battery manager respectively, and the control module is connected with an input interface. With the adoption of solar-energy electricity generation, the device is clean and environment-friendly. And with the adoption of the battery set, not only is the output voltage of the voltage-boosting DC-DC stabilized, but also the effect of the changes of weather on charging the load is avoided.

Description

Solar power supply apparatus
Technical field
The utility model relates to a kind of solar power supply apparatus.
Background technology
At present, electric vehicle engineering is increasingly mature, and electric automobile also is in the stage that the world promotes, but the electric automobile charging station of specialty or charging device are deficient relatively, and most electric automobile charging station and charging device too rely on the conventional electric power generation technology.Like this, not only bad for wideling popularize of electric automobile, and since the pollution that tradition generating causes to environment just in time run in the opposite direction with the environmental protection concept of electric automobile.
The utility model content
The utility model adopts traditional generation technology for solving existing electric supply installation, to the technical problem that environment pollutes, provides a kind of cleaning, environmental protection also can improve the solar power supply apparatus of solar energy utilization rate greatly.
For solving the problems of the technologies described above, the utility model provides a kind of solar power supply apparatus, comprise control module, solar battery array, boost DC-DC, buck DC-DC, battery pack, battery manager, first switch, second switch, the 3rd switch, the 4th switch and the 5th switch, described solar battery array is by first switch, boost DC-DC links to each other with an end of second switch, the other end of second switch links to each other with the 3rd switch one end with the 4th switch one end respectively, the other end of the 4th switch passes through buck DC-DC, the 5th switch is connected successively with charging inlet, the other end of the 3rd switch links to each other with battery manager by battery pack, described control module respectively with boost DC-DC, buck DC-DC links to each other with battery manager, and described control module also is connected to and whether is used to import the input interface of charging instruction.
Further, the utility model solar power supply apparatus also comprises man-machine interface or remote terminal, and described man-machine interface or remote terminal link to each other with control module by input interface.
Further, described man-machine interface is a touch panel device.
Further, adopt standard MODBUS communication protocol to communicate by letter between described control module and the man-machine interface.
Further, adopt standard MODBUS communication protocol to communicate by letter between described control module and the remote terminal.
Further, described solar power supply apparatus also comprises step-down DC-AC, the 6th switch and the 9th switch, the other end of described second switch also links to each other with charging inlet by the 9th switch, step-down DC-AC and the 6th switch, and described step-down DC-AC also links to each other with control module.
Further, described solar power supply apparatus also comprises minion pass, first resistance, octavo pass and second resistance, be attempted by first switch ends after described minion is closed and first resistance is connected, be attempted by the two ends of the 4th switch after described octavo is closed and second resistance is connected.
Further, be provided with a plurality of output voltage grade interfaces in the described buck DC-DC, described charging inlet comprises a plurality of and the corresponding interface of output voltage grade interfaces.
Further, adopt the CAN communication mode to communicate by letter between described control module and the battery manager.
The technical solution of the utility model as can be seen, solar power supply apparatus is by comprising control module, solar battery array, boost DC-DC, buck DC-DC, battery pack, battery manager, first switch, second switch, the 3rd switch, the 4th switch and the 5th switch, described solar battery array is by first switch, boost DC-DC links to each other with an end of second switch, the other end of second switch links to each other with the 3rd switch one end with the 4th switch one end respectively, the other end of the 4th switch passes through buck DC-DC, the 5th switch is connected successively with charging inlet, the other end of the 3rd switch links to each other with battery manager by battery pack, described control module respectively with boost DC-DC, buck DC-DC links to each other with battery manager, and described control module also is connected to and whether is used to import the input interface of charging instruction.The drawback of having avoided traditional generation technology that environment is polluted, solar energy generation technology cleaning, environmental protection that the utility model adopts, and, by adopting battery pack, can effectively stablize the boost DC-DC output voltage, and, when solar energy is sufficient, but the excess of storage energy output, and work as rainy weather, when solar energy is poor, the user that also can the compensate shortcoming demand electric weight that charges, thus guarantee user's need for electricity.
Description of drawings
Embodiment one structured flowchart that Fig. 1 provides for the utility model.
Embodiment two structured flowcharts that Fig. 2 provides for the utility model.
Embodiment three structured flowcharts that Fig. 3 provides for the utility model.
Embodiment four structured flowcharts that Fig. 4 provides for the utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Adopt traditional generation technology environment to be caused the technical problem of very big pollution for solving existing electric automobile charging station or charging device, the utility model provides a kind of solar power supply apparatus, this device comprises control module, solar battery array, boost DC-DC, buck DC-DC, battery pack, battery manager, first switch, second switch, the 3rd switch, the 4th switch and the 5th switch, described solar battery array is by first switch, boost DC-DC links to each other with an end of second switch, the other end of second switch links to each other with the 3rd switch one end with the 4th switch one end respectively, the other end of the 4th switch passes through buck DC-DC, the 5th switch is connected successively with charging inlet, the other end of the 3rd switch links to each other with battery manager by battery pack, described control module respectively with boost DC-DC, buck DC-DC links to each other with battery manager, and described control module also is connected to and whether is used to import the input interface of charging instruction.
In order to enable those skilled in the art to understand better, realize the utility model, the utility model is elaborated below by specific embodiment.
Embodiment one
Embodiment one structured flowchart that Fig. 1 provides for the utility model, as shown in Figure 1, solar power supply apparatus comprises control module 6, solar battery array 1, boost DC-DC 2, buck DC-DC 3, battery pack 4, battery manager 5, K switch 1, K switch 2, K switch 3, K switch 4 and K switch 5, described solar battery array 1 is by K switch 1, boost DC-DC 2 links to each other with an end of K switch 2, the other end of K switch 2 links to each other with K switch 3 one ends with K switch 4 one ends respectively, the other end of K switch 4 is by buck DC-DC 3, K switch 5 is connected successively with charging inlet, the other end of K switch 3 links to each other with battery manager 5 by battery pack 4, this battery pack 4 is used for stablizing boost DC-DC 2 output voltages, the user who stores solar battery array 1 excess generation amount and the compensation solar battery array 1 shortcoming demand electric weight that charges, described control module 6 respectively with boost DC-DC 2, buck DC-DC 3 links to each other with battery manager 5, and described control module 6 also is connected to the input interface that is used to import charging instruction.
The operation principle of this embodiment is as follows:
Control module 6 accepts to start or stop instruction by input port, thereby start or stop solar power supply apparatus, when solar power supply apparatus is starting state, control module 6 control switch K1, K switch 2 and K switch 3 closures, then solar battery array 1 is battery pack 4 chargings by boost DC-DC 2; When solar power supply apparatus was halted state, control module 6 control switch K1, K switch 2 and K switch 3 disconnected, and then stopped whole solar power supply apparatus operation.
When solar power supply apparatus is starting state, when control module 6 receives the charging request command of load (is example with the electric motor car at this) again by input port, control module 6 control switch K4 and K switch 5 closures, thus solar power supply apparatus is the electric motor car power supply by charging inlet.In this explanation be, this moment, solar power supply apparatus was that the electric motor car power supply has dual mode by charging inlet: first kind of mode is, when weather sunny, when solar energy is relatively more sufficient, solar battery array 1 is the electric motor car power supply by boost DC-DC 2 and buck DC-DC 3, certainly, and in this charging process, if solar battery array 1 energy output then can store this a part of excess quantity in the battery pack 4 into superfluous; The second way is, when rainy weather occurring, when solar energy is poor, this moment solar energy energy output when being nowhere near the charging demand of electric motor car, then control module 6 control battery pack 4 are powered for electric motor car by buck DC-DC 3.Like this, just avoided the influence of the variation of weather, thereby satisfied electric motor car user's charging demand better electric motor car user charging.
When solar power supply apparatus is starting state; control module 6 is gathered the electric parameters (voltage for example of boost DC-DCs 2 and buck DC-DC 3 in real time; electric current etc.); and with these electric parameters respectively with the default corresponding protection parameter value of control module 6 relatively; when this arbitrary electric parameters surpasses the default corresponding protection parameter value of control module 6; control module 6 stops whole solar power supply apparatus operation; be control switch K5; K switch 4; K switch 2; K switch 1 and K switch 3 disconnect successively, perhaps control switch K5; K switch 4; K switch 2; K switch 3 and K switch 1 disconnect successively.
When solar power supply apparatus is starting state; battery manager 5 is gathered the electric parameters (total voltage for example of battery pack 4 in real time; electric current; the highest single-unit voltage or temperature; minimum single-unit voltage or temperature and SOC etc.) and quantity of state (fault message for example; warning information and on off state etc.); and with these electric parameters and quantity of state respectively with the default corresponding protection parameter of battery manager 5 relatively; when this arbitrary electric parameters surpasses the default corresponding protection parameter value of battery manager 5; stop this order to control module 6 transmissions; after control module 6 receives battery manager 5 these orders; stop whole solar power supply apparatus operation; be control switch K5; K switch 4; K switch 2; K switch 1 and K switch 3 disconnect successively, perhaps control switch K5; K switch 4; K switch 2; K switch 3 and K switch 1 disconnect successively.
In the present embodiment, output voltage, the electric current of 6 pairs of solar battery arrays 1 of control module are sampled, and making MPPT maximum power point tracking according to the sampled voltage current value, output PWM regulates control to the DC/DC that boosts, thereby makes the generating efficiency of solar battery array 1 up to more than 80%.
In the present embodiment, the preferred CAN communication mode that adopts is communicated by letter between described control module 6 and the battery manager 5.
As the further preferred version of present embodiment, be provided with a plurality of output voltage grade interfaces in the described buck DC-DC 3, described charging inlet comprises a plurality of and the corresponding interface of output voltage grade interfaces.Make solar power supply apparatus of the present utility model can be electric like this, the therefore further perfect function of the utility model solar power supply apparatus with different electric pressures.
Embodiment two
Embodiment two structured flowcharts that Fig. 2 provides for the utility model, as shown in Figure 2, solar power supply apparatus comprises control module 6, solar battery array 1, boost DC-DC 2, buck DC-DC 3, battery pack 4, battery manager 5, K switch 1, K switch 2, K switch 3, K switch 4, K switch 5 and man-machine interface 7, described solar battery array 1 is by K switch 1, boost DC-DC 2 links to each other with an end of K switch 2, the other end of K switch 2 links to each other with K switch 3 one ends with K switch 4 one ends respectively, the other end of K switch 4 is by buck DC-DC 3, K switch 5 is connected successively with charging inlet, the other end of K switch 3 links to each other with battery manager 5 by battery pack 4, this battery pack 4 is used for stablizing boost DC-DC 2 output voltages, the user who stores solar battery array 1 excess generation amount and the compensation solar battery array 1 shortcoming demand electric weight that charges, described control module 6 respectively with boost DC-DC 2, buck DC-DC 3 links to each other with battery manager 5, and described control module 6 links to each other with man-machine interface 7 by input interface.
This embodiment compares with embodiment one; most contents is identical; difference is; increase by one and be mainly the man-machine interface 7 that the user provides charging electric vehicle control and Stateful Inspection platform; like this; on the one hand; the user can pass through man-machine interface 7 input control informations (charging instruction for example; the electric weight and the boost DC-DC 2 of charging; the corresponding protection parameter of buck DC-DC 3 and battery manager 5); above-mentioned control information sends control module 6 by man-machine interface 7 to by input interface; avoided among the embodiment one control module 6 whether can only accept charging instruction; and can not control charge volume according to user's request; in addition; boost DC-DC 2 among the embodiment one; the corresponding protection parameter of buck DC-DC 3 and battery manager 5 all is to be preset in the control module 6; be not easy to change, and embodiment two makes the user can control the working condition of solar power supply apparatus more easily by increasing man-machine interface 7.On the other hand, control module 6 can show the electric parameters and the quantity of state of boost DC-DC 2, buck DC-DC 3 and battery pack 4 by man-machine interface 7, thereby is convenient to the working condition that the user understands solar power supply apparatus intuitively.
In the present embodiment, preferred employing standard MODBUS communication protocol is communicated by letter between described control module 6 and the man-machine interface 7, and purpose is the type selecting that makes things convenient for man-machine interface, because most device of man-machine interface is all supported standard MODBUS communication protocol.
As the further preferred version of embodiment two, described man-machine interface 7 can be preferably touch panel device, because this touch panel device is fairly simple, portable, and can directly be embedded on the cabinet surface, the convenient use, certainly, man-machine interface 7 of the present utility model is not limited to above-mentioned touch panel device.
As a kind of preferred version of the present utility model, on the basis of embodiment one, also can increase a remote terminal, this remote terminal links to each other with control module 6 by input interface, compare with embodiment two, this embodiment is the man-machine interface 7 that has substituted embodiment two with remote terminal, and promptly embodiment two is a kind of control modes on the spot, and this embodiment is a kind of Long-distance Control mode, purpose is to be convenient to the working condition of user by remote terminal Long-distance Control and supervision solar power supply apparatus.Further preferred, adopt standard MODBUS communication protocol to communicate by letter between described control module 6 and the remote terminal.
Embodiment three
Embodiment three structured flowcharts that Fig. 3 provides for the utility model, consult Fig. 3, solar power supply apparatus comprises control module 6, solar battery array 1, boost DC-DC 2, buck DC-DC 3, step-down DC-AC8, man-machine interface 7, battery pack 4, battery manager 5, K switch 1, K switch 2, K switch 3, K switch 4, K switch 5, K switch 6 and K switch 9, described solar battery array 1 is by K switch 1, boost DC-DC 2 links to each other with an end of K switch 2, the other end of K switch 2 respectively with K switch 4 one ends, K switch 9 one ends and K switch 3 one ends link to each other, the other end of K switch 4 is by buck DC-DC 3, K switch 5 is connected successively with charging inlet, the other end of K switch 9 is by step-down DC-AC8, K switch 6 links to each other with charging inlet, the other end of K switch 3 links to each other with battery manager 5 by battery pack 4, this battery pack 4 is used for stablizing boost DC-DC 2 output voltages, the user who stores solar battery array 1 excess generation amount and the compensation solar battery array 1 shortcoming demand electric weight that charges, described control module 6 respectively with boost DC-DC 2, buck DC-DC 3, step-down DC-AC8 links to each other with battery manager 5, and described control module 6 links to each other with man-machine interface 7 by input interface.
This embodiment is on the basis of embodiment two, be further improved, step-down DC-AC8, K switch 6 and K switch 9 promptly on the basis of embodiment two, have been increased, the other end of described K switch 2 also links to each other with charging inlet by K switch 9, step-down DC-AC8 and K switch 6, and described step-down DC-AC8 also links to each other with control module 6.Purpose is, make this embodiment not only can be the direct current electric, can also power for AC load, its concrete operation principle is: when solar power supply apparatus is starting state, when charging inlet connect be direct current load (for example electric motor car) time, control module 6 control switch K4 and K switch 5 closures, solar battery array 1 is the electric motor car power supply by boost DC-DC 2 and buck DC-DC 3, and when charging inlet connect be AC load (for example the illumination, household electricity or commercial power etc.), control switch K4 and K switch 5 disconnect, and control switch K9 and K switch 6 closures, solar battery array 1 is illumination by boost DC-DC 2 and step-down DC-AC8, power supply such as household electricity or commercial power.
More than, embodiment three further improves to obtain on the basis of embodiment two, as another preferred version of the present utility model, also can on the basis of the expansion embodiment of embodiment one and embodiment one, embodiment two, further improve, step-down DC-AC8, K switch 6 and K switch 9 promptly on the basis of the foregoing description, have been increased, the other end of described K switch 2 also links to each other with charging inlet by K switch 9, step-down DC-AC8 and K switch 6, and described step-down DC-AC8 also links to each other with control module 6.
Embodiment four
Embodiment four structured flowcharts that Fig. 4 provides for the utility model, consult Fig. 4 as can be known, this embodiment is most of identical with embodiment two, difference is: increased K switch 7, resistance R 1, K switch 8 and resistance R 2 on the basis of embodiment two, be attempted by K switch 1 two ends after described K switch 7 and resistance R 1 series connection, be attempted by the two ends of K switch 4 after described K switch 8 and resistance R 2 series connection.Its concrete operation principle is: when solar power supply apparatus starts, control module 6 is control switch K7, K switch 2 and K switch 3 closures at first, treat that certain hour (this concrete time can by design setting) back control switch K7 disconnects, and Closing Switch K1, purpose is that when the restriction solar power supply apparatus had just started, the voltage of solar battery array 1 output was excessive, thereby avoid this excessive voltage to cause great impact for boost DC-DC 2, even damage the drawback of boost DC-DC 2; In like manner, after solar power supply apparatus starts, when control module 6 receives the charging request command of load by input port, control switch K8 and K switch 5 closures, treat that certain hour (this concrete time can by design setting) back control switch K8 disconnects, and Closing Switch K4, purpose is, when the restriction solar power supply apparatus has just charged, the voltage of boost DC-DC or battery pack 4 outputs is excessive, thereby avoid the excessive buck DC-DC 3 of giving of this voltage to cause great impact, even damage the drawback of buck DC-DC 3.
In the present embodiment, the resistance of resistance R 1 and resistance R 2, is not therefore elaborated at this because the resistance of the voltage swing that limits as required design resistance R 1 and resistance R 2 is state of the art by the voltage swing decision that the designer limits as required.
More than, embodiment four further improves to obtain on the basis of embodiment two, as another preferred version of the present utility model, also can on the basis of the expansion embodiment of embodiment one, embodiment three and embodiment one, embodiment two and embodiment three, further improve, promptly on the basis of the foregoing description, increase K switch 7, resistance R 1, K switch 8 and resistance R 2, be attempted by K switch 1 two ends after described K switch 7 and resistance R 1 series connection, be attempted by the two ends of K switch 4 after described K switch 8 and resistance R 2 series connection.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims (9)

1. solar power supply apparatus, it is characterized in that, comprise control module, solar battery array, boost DC-DC, buck DC-DC, battery pack, battery manager, first switch, second switch, the 3rd switch, the 4th switch and the 5th switch, described solar battery array is by first switch, boost DC-DC links to each other with an end of second switch, the other end of second switch links to each other with the 3rd switch one end with the 4th switch one end respectively, the other end of the 4th switch passes through buck DC-DC, the 5th switch is connected successively with charging inlet, the other end of the 3rd switch links to each other with battery manager by battery pack, described control module respectively with boost DC-DC, buck DC-DC links to each other with battery manager, and described control module also is connected to and whether is used to import the input interface of charging instruction.
2. solar power supply apparatus according to claim 1 is characterized in that described solar power supply apparatus also comprises man-machine interface or remote terminal, and described man-machine interface or remote terminal link to each other with control module by input interface.
3. solar power supply apparatus according to claim 2 is characterized in that, described man-machine interface is a touch panel device.
4. solar power supply apparatus according to claim 2 is characterized in that, adopts standard MODBUS communication protocol to communicate by letter between described control module and the man-machine interface.
5. solar power supply apparatus according to claim 2 is characterized in that, adopts standard MODBUS communication protocol to communicate by letter between described control module and the remote terminal.
6. solar power supply apparatus according to claim 1, it is characterized in that, described solar power supply apparatus also comprises step-down DC-AC, the 6th switch and the 9th switch, the other end of described second switch also links to each other with charging inlet by the 9th switch, step-down DC-AC and the 6th switch, and described step-down DC-AC also links to each other with control module.
7. solar power supply apparatus according to claim 1, it is characterized in that, described solar power supply apparatus also comprises minion pass, first resistance, octavo pass and second resistance, be attempted by first switch ends after described minion is closed and first resistance is connected, be attempted by the two ends of the 4th switch after described octavo is closed and second resistance is connected.
8. according to each described solar power supply apparatus of claim 1 to 7, it is characterized in that, be provided with a plurality of output voltage grade interfaces in the described buck DC-DC, described charging inlet comprises a plurality of and the corresponding interface of output voltage grade interfaces.
9. according to each described solar power supply apparatus of claim 1 to 7, it is characterized in that, adopt the CAN communication mode to communicate by letter between described control module and the battery manager.
CN2010206312076U 2010-11-30 2010-11-30 Solar electricity-supply device Expired - Lifetime CN201937502U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105033240A (en) * 2015-08-07 2015-11-11 重庆铸豪机械有限责任公司 Mini-tiller clutch production device which is powered on basis of renewable energy sources
CN105099136A (en) * 2014-05-23 2015-11-25 英飞凌科技奥地利有限公司 Boost-buck based power converter
WO2018205167A1 (en) * 2017-05-10 2018-11-15 深圳市大疆创新科技有限公司 Battery management system, battery and unmanned aerial vehicle
CN109888862A (en) * 2019-02-15 2019-06-14 深圳硕日新能源科技有限公司 A kind of control method of double-battery charge electric system
CN112117807A (en) * 2020-09-25 2020-12-22 阳光电源股份有限公司 Energy storage DC/DC conversion module, controller thereof and energy storage power conversion system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099136A (en) * 2014-05-23 2015-11-25 英飞凌科技奥地利有限公司 Boost-buck based power converter
CN105033240A (en) * 2015-08-07 2015-11-11 重庆铸豪机械有限责任公司 Mini-tiller clutch production device which is powered on basis of renewable energy sources
WO2018205167A1 (en) * 2017-05-10 2018-11-15 深圳市大疆创新科技有限公司 Battery management system, battery and unmanned aerial vehicle
CN109888862A (en) * 2019-02-15 2019-06-14 深圳硕日新能源科技有限公司 A kind of control method of double-battery charge electric system
CN112117807A (en) * 2020-09-25 2020-12-22 阳光电源股份有限公司 Energy storage DC/DC conversion module, controller thereof and energy storage power conversion system

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Granted publication date: 20110817