CN211480938U - RACK module and application system thereof - Google Patents
RACK module and application system thereof Download PDFInfo
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- CN211480938U CN211480938U CN202020386413.9U CN202020386413U CN211480938U CN 211480938 U CN211480938 U CN 211480938U CN 202020386413 U CN202020386413 U CN 202020386413U CN 211480938 U CN211480938 U CN 211480938U
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Abstract
The application provides a RACK module and application system thereof, this RACK module includes: the battery protection device comprises a shell, and a battery, a battery protection unit, a DC/DC conversion circuit and a control unit which are arranged in the shell; the positive electrode and the negative electrode of the battery are connected with one side of the DC/DC conversion circuit through the battery protection unit; the RACK module is connected with an external power line port and is arranged on the other side of the shell, which is internally connected with the DC/DC conversion circuit; the control unit is used for controlling the battery protection unit and the DC/DC conversion circuit to work and realizing communication connection between the control unit and the battery as well as between the control unit and the outside; because the RACK module is internally provided with the DC/DC conversion circuit, the external connection between each RACK module and an external DC/DC converter in the prior art is omitted, and the engineering quantity and the wiring cost required by corresponding connection are reduced.
Description
Technical Field
The utility model relates to an energy storage technology field, concretely relates to RACK module and application system thereof.
Background
With the wide application of new energy sources such as light energy, wind energy and the like in the power generation industry, in order to ensure stable power supply of photovoltaic power generation and wind energy power generation, in practical application, an energy storage system is generally required to be added to systems such as photovoltaic power generation, wind power generation and the like.
As shown in fig. 1, in the conventional energy storage System, a plurality of RACK modules 10 (RACK module 1 … … RACK module N shown in fig. 1) are connected in parallel, and then are connected to a DC/DC converter 11, and the DC/DC converter 11 and a PCS 12(Power Control System, energy storage converter) realize the storage and release functions of electric energy, and the energy storage System needs to be matched with a RACK module 302 through a switch cabinet (not shown) to realize the Power conversion function of the energy storage System.
The BCU (Battery control unit) in the RACK module 302 is responsible for not only communication between the BCU and the Battery in the RACK module 302, but also communication between the RACK module 302 and the external DC/DC converter 11; when the number of RACK modules 302 in the energy storage system is large, the communication connection and the electrical connection between each RACK module 302 and the external DC/DC converter 11 are large, and the wiring cost is high.
SUMMERY OF THE UTILITY MODEL
To this, this application provides a RACK module and application system thereof to when RACK module quantity is great among the solution current energy storage system, communication connection and electrical connection between each RACK module and the outside DC/DC converter, the engineering volume is big and the problem that the wiring cost is high.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the application first aspect discloses a RACK module, includes: the battery protection device comprises a shell, and a battery, a battery protection unit, a DC/DC conversion circuit and a control unit which are arranged in the shell; wherein:
the positive electrode and the negative electrode of the battery are connected with one side of the DC/DC conversion circuit through the battery protection unit;
the RACK module is connected with an external power port and is arranged on the shell and internally connected with the other side of the DC/DC conversion circuit;
the battery protection unit and the DC/DC conversion circuit are both controlled by the control unit, and the control unit is respectively connected with the battery and external communication.
Optionally, in the RACK module described above, when the power port is short-circuited, the DC/DC conversion circuit is in a state of stopping outputting, so as to implement short-circuit protection for the RACK module.
Optionally, in the RACK module described above, the battery protection unit includes:
the first fuse and the first single-stage switch are arranged on a lead between the positive electrode of the battery and the positive electrode of the corresponding side of the DC/DC conversion circuit and are connected in series;
the second fuse and the second single-stage switch are arranged on a lead between the negative electrode of the battery and the negative electrode of the corresponding side of the DC/DC conversion circuit and are connected in series;
the first single-stage switch and the second single-stage switch are both controlled by the control unit.
Optionally, in the RACK module, the battery protection unit and the DC/DC conversion circuit are integrated in a protection conversion module.
Optionally, in the RACK module described above, the protection conversion module is disposed in a space inside the housing on the battery side.
Optionally, in the RACK module described above, the battery protection unit, the DC/DC conversion circuit, and the control unit are all independent devices.
Optionally, in the RACK module described above, the control unit includes: a BMS control unit and a conversion control unit; wherein:
the battery protection unit is controlled by the BMS control unit, and the BMS control unit is respectively in communication connection with the battery and the transformation control unit;
the DC/DC conversion circuit is controlled by the conversion control unit, and the conversion control unit is respectively connected with the BMS control unit and external communication;
the battery protection unit and the BMS control unit are integrated in a Battery Control Unit (BCU);
the DC/DC conversion circuit and the conversion control unit are integrated in a DC/DC converter.
A second aspect of the present application discloses an energy storage power conversion system, comprising: at least one energy storage converter PCS and a plurality of RACK modules as disclosed in any of the first aspects;
the direct current side of the PCS is respectively connected with the power ports of the RACK modules;
and the PCS is respectively in communication connection with the control units in the RACK modules.
A third aspect of the present application discloses an optical storage system comprising: a photovoltaic inverter system and a plurality of RACK modules as disclosed in any of the first aspects;
the power port of each RACK module is connected with the direct current bus of the photovoltaic inverter system;
and the control unit in each RACK module is in communication connection with the photovoltaic inverter system.
The present application fourth aspect discloses a wind storage system, including: a wind turbine, a converter and a plurality of RACK modules as described in any of the first aspects;
the output end of the wind driven generator is connected with the input end of the converter;
the power port of each RACK module is connected with the direct current bus of the converter;
and the control unit in each RACK module is in communication connection with the converter.
Based on the above the utility model provides a RACK module, this RACK module includes battery, battery protection unit, DC/DC converting circuit and the control unit; the positive electrode and the negative electrode of the battery are connected with one side of the DC/DC conversion circuit through the battery protection unit; the RACK module is connected with an externally connected power line port and is internally connected with the other side of the DC/DC conversion circuit; the control unit is used for controlling the battery protection unit and the DC/DC conversion circuit to work and realizing communication connection between the control unit and the battery as well as between the control unit and the outside; because the RACK modules are internally provided with the corresponding DC/DC conversion circuits, the external connection between each RACK module and an external DC/DC converter in the prior art is omitted, and the engineering quantity and the wiring cost required by the corresponding connection are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a conventional energy storage system;
fig. 2 is a schematic structural diagram of a RACK module according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating a current short circuit condition of a conventional energy storage system;
fig. 4 is a schematic diagram illustrating a current short circuit condition of an energy storage system according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another RACK module provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of another RACK module provided in the embodiment of the present application;
fig. 7 is a schematic structural diagram of an energy storage power conversion system according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an optical storage system according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a wind storage system according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the application provides a RACK module to when RACK module quantity is great among the solution current energy storage system, communication connection and electrical connection between each RACK module and the outside DC/DC converter, the engineering volume is big and the problem that the wiring cost is high.
Referring to fig. 2, the RACK module (e.g., RACK module _1 or RACK module _ N in fig. 1) mainly includes: a case 100, and a battery 101, a battery protection unit 102, a DC/DC conversion circuit 103, and a control unit 104 provided inside the case 100.
The positive and negative electrodes of the battery 101 are connected to one side of the DC/DC converter circuit 103 via the battery protection unit 102.
The RACK module is connected to an external power port, and is provided on the other side of the casing 100, to which the DC/DC converter circuit 103 is connected.
The control unit 104 is configured to control the battery protection unit 102 and the DC/DC conversion circuit 103 to operate, and to realize communication connection between itself and the battery 101 and the outside.
Specifically, the battery 101 is an energy storage unit in the RACK module, and is used for storing electric energy, and the battery 101 is internally provided with a corresponding information acquisition and communication device, and is used for communicating with the control unit 104. The battery protection unit 102 is used for protecting the battery in the RACK module, and can avoid damage to the battery due to short circuit, overcharge or overdischarge.
Based on the principle, the corresponding DC/DC conversion circuit 103 is arranged in the RACK modules, so that the external connection between each RACK module and the DC/DC converter in the prior art is omitted, and the engineering quantity and the wiring cost required by corresponding connection are reduced.
It is worth explaining that the BCU in the existing energy storage system needs to communicate with the DC/DC converter and the battery through external connection, which results in low integration level and poor compatibility of the energy storage system.
It should be noted that the specific application form of the DC/DC conversion circuit 103 may be a DC/DC converter, or other devices with DC/DC conversion function, and the application does not limit the specific form of the DC/DC conversion circuit 103, and only needs to satisfy the DC/DC conversion control of the RACK module.
It should be noted that the specific shape of the housing may be determined according to the specific layout of the devices in the RACK module, and the present application is not limited specifically, and all of the shapes belong to the protection scope of the present application.
In practical applications, if a plurality of RACK modules are provided in the energy storage system, the plurality of RACK modules are usually connected in parallel, and the connection mode is shown in fig. 2. Moreover, the RACK modules in the existing energy storage system have no power conversion function, and after a plurality of RACK modules are connected in parallel, if short circuit occurs, the short circuit current is large after the short circuit occurs, so that the short circuit protection is difficult to realize and high in cost.
In contrast, on the basis of fig. 2, another embodiment of the present application further provides a RACK module, where the control unit of the RACK module is further configured to control the DC/DC conversion circuit 103 to stop outputting when the power port of the RACK module is short-circuited, so as to implement short-circuit protection for the RACK module.
Specifically, the DC/DC conversion circuit 103 in the RACK module can control and detect the short-circuit current of the power port of the RACK module.
When the power port of the RACK module is short-circuited, the control unit 104 controls the DC/DC conversion circuit 103 to cut off the short-circuit current of the battery 101 in the RACK module, so as to reduce the external short-circuit current, simplify the short-circuit protection of the power port of a single RACK module, improve the reliability, and further improve the selectivity of the protection device.
Referring to fig. 3 and 4, the following describes a specific example of how the RACK module provided by the present application can reduce the external short circuit current.
Assuming that the short-circuit current of the battery is Ib, the short-circuit current of the power port of the RACK module in the conventional energy storage system (as shown in fig. 3) is related to the number of the RACK modules connected in parallel in the energy storage system, and if N RACK modules are connected in parallel in the energy storage system, the short-circuit current of the power port of the RACK module is N × Ib.
And adopt the energy storage system (as shown in fig. 4) of RACK module that this application provided, because the RACK module is equipped with battery protection unit 102 and DC/DC converting circuit 103 to can be through the work of control unit 104 control battery protection unit 102 and DC/DC converting circuit 103 among itself, when the electric power port short circuit, can control DC/DC converting circuit 103 to stop the output, so the short-circuit current of the electric power port of the energy storage system of RACK module that this application provided is adopted is Ib.
Referring to fig. 5 based on fig. 2, in another embodiment provided in the present application, the battery protection unit 102 includes:
and a first fuse Fu1 and a first single-stage switch K1 which are connected in series on a conductor between the positive electrode BAT + of the battery 101 and the positive electrode DC + of the DC/DC converter circuit 103.
And a second fuse Fu2 and a second single-stage switch K2 which are connected in series and are arranged on a conductor between the negative electrode BAT-of the battery 101 and the negative electrode DC-of the corresponding side of the DC/DC conversion circuit 103.
The first single-stage switch K1 and the second single-stage switch K2 are controlled by the control unit 104.
In practical application, after the short circuit occurs at the power port of the RACK module, in addition to controlling the DC/DC conversion circuit 103 to stop outputting, the first single-stage switch K1 and the second single-stage switch K2 in the battery protection unit 102 may be controlled to be turned off, so that the battery 101 does not output electric energy to the DC/DC conversion circuit 103 any more, and the short-circuit protection function is implemented.
Alternatively, in practical applications, the battery protection unit 102 and the DC/DC conversion circuit 103 may be integrated into a protection conversion module.
Specifically, the protection conversion module can be arranged in a space at one side of the battery in the shell; of course, the protection conversion module can be arranged at other positions inside the shell according to the application environment and the user requirements, and the protection conversion module is arranged in the shell wherever, so that the protection conversion module belongs to the protection range of the application.
In practical applications, the battery protection unit 102, the DC/DC conversion circuit 103, and the control unit 104 in the RACK module may all be independent devices, that is, one control unit 104 may implement all control and communication functions in the RACK module.
Alternatively, the functions of the Battery protection unit 102, the DC/DC conversion circuit 103 and the control unit 104 may also be implemented by two integrated devices, namely, a BCU (Battery control unit) 201 and a DC/DC converter 106, specifically, referring to fig. 6, where the control unit 104 includes: BMS control unit 105 and transformation control unit 107.
The BMS controlling unit 105 controls the operation of the battery protecting unit 102 and realizes communication connection between itself and the battery 101 and the conversion controlling unit 107.
The conversion control unit 107 is used to control the operation of the DC/DC conversion circuit 103 and to realize communication connection between itself and the BMS control unit 104 and the outside.
The battery protection unit 102 and the BMS control unit 104 are integrated in the BCU 201.
The DC/DC conversion circuit 103 and the conversion control unit 107 are integrated in the DC/DC converter 202.
Specifically, the battery protection unit 102 and the BMS control unit 104 are integrated in the BCU 201, and the BCU function of the RACK module can be realized.
It should be noted that the specific form of the control unit 104 is not limited to the above, and any control unit that satisfies the requirements of controlling the operations of the battery protection unit 102 and the DC/DC conversion circuit 103 and realizing the connection communication between itself and the battery 101 and the outside regardless of the specific form of the control unit 104 belongs to the protection scope of the present application.
Another embodiment of the present application further provides an energy storage power conversion system, please refer to fig. 7, which mainly includes: at least one energy storage converter PCS 301 (only one PCS is shown in fig. 7) and a plurality of RACK modules 302 as described in any of the above embodiments (RACK modules _1 to RACK module _ N are shown in fig. 7).
The dc sides of the PCS 301 are connected to the power ports of the RACK modules 302, respectively.
The PCS 301 is respectively connected to the control units 104 in the corresponding RACK modules 302.
In practical application, the controller in the PCS 301 may receive the background control instruction in a communication manner, and control the PCS 301 to charge or discharge the battery 101 in the RACK module 302 according to the control instruction, so as to adjust the active power and the reactive power of the power grid.
In addition, the controller of the PCS 301 CAN also communicate with the BCU through the CAN interface, so that the state information of each RACK module 302 CAN be acquired, protective charging and discharging of the battery 101 in each RACK module 302 is realized, and the running safety of the battery is ensured.
It should be noted that, for the related description of the RACK module 302, reference may be made to the embodiments corresponding to fig. 2 to fig. 6, and details are not described herein again.
In this embodiment, because RACK module 302 is provided with corresponding DC/DC converting circuit inside, so saved the external connection between each RACK module 302 and the DC/DC converter among the prior art, reduced the required engineering volume of corresponding connection and wiring cost, compare in current energy storage system, it is lower to use this application to provide the energy storage power conversion system cost of RACK module.
And, RACK module 302 among the energy storage power conversion system that this application provided still has the power conversion function, can be when RACK module 302's electric power port short circuit, control DC/DC converting circuit 103 stops the output, realize the short-circuit protection to RACK module 302, compare in current energy storage system, RACK module 302's among the energy storage power conversion system that this application provided short-circuit current is little, it is little to realize short-circuit protection's the degree of difficulty to each RACK module 302, and then also make the energy storage system integrated level of constituteing higher.
Another embodiment of the present application further provides an optical storage system, please refer to fig. 8, which includes: photovoltaic inverter system 401 and a plurality of RACK modules 302 as described in any of the above embodiments (RACK modules _1 through RACK module _ N are shown in figure 8 for a plurality of RACK modules).
The power port of each RACK module 302 is connected to the dc bus of the photovoltaic inverter system 401.
In practical applications, the photovoltaic inverter system 401 includes at least a photovoltaic inverter and a photovoltaic array. The photovoltaic array is used for converting solar energy into electric energy and outputting the electric energy to the photovoltaic inverter.
Specifically, the direct current bus on the direct current side of the photovoltaic inverter can also receive electric energy output by a plurality of groups of photovoltaic arrays through a plurality of combiner boxes.
It should be noted that the specific components of the photovoltaic inverter system are the same as those of the prior art, and reference may be made to the prior art, which is not described herein again.
The control unit in each RACK module 302 is in communication connection with the photovoltaic inverter system 401.
It should be noted that, for the related description of the RACK module 302, reference may be made to the embodiments corresponding to fig. 2 to fig. 6, and details are not described herein again.
In this embodiment, the RACK module 302 has the advantages of reducing the amount of work and wiring cost required for external connection with the DC/DC converter, having a power conversion function, and the like, so the optical storage system provided with the RACK module 302 can also reduce the cost required for building the system, is easy to implement short-circuit protection for the RACK module 302, and makes the integrated level of the formed optical storage system higher; and moreover, the energy storage system in the optical storage system is convenient to expand, and only the RACK module is additionally arranged to be directly connected to the direct current bus.
Another embodiment of the present application further provides a wind storage system, please refer to fig. 9, which includes: wind power generator 501, current transformer 502 and a plurality of RACK modules 302 as described in any of the above embodiments (RACK modules _1 to _ N are shown in figure 9).
Wherein, the output end of the wind driven generator 501 is connected with the input end of the converter 502.
Specifically, the wind power generator is used for converting wind energy into electric energy and outputting the generated electric energy to the converter through the output end.
The power ports of each RACK module 302 are connected to the dc bus of converter 502.
The control unit 104 in each RACK module 302 is communicatively connected to the converter 502.
It should be noted that, for the related description of the RACK module 302, reference may be made to the embodiments corresponding to fig. 2 to fig. 6, and details are not described herein again.
In this embodiment, the RACK module 302 has the advantages of reducing the amount of work and wiring cost required for external connection with the DC/DC converter, having a power conversion function, and the like, so the wind storage system provided with the RACK module 302 can also reduce the cost required for building the system, is easy to implement short-circuit protection for the RACK module 302, and makes the integrated level of the formed wind storage system higher; moreover, the energy storage system in the wind storage system is convenient to expand, and only the RACK module is additionally arranged to be directly connected to the direct current bus.
It should be noted that the control unit 104 shown in fig. 7-9, which is connected to the outside in a communication manner, may be in a wired communication manner, a wireless communication manner, or a power line carrier, and is not limited herein, depending on the specific application environment, and all of them are within the scope of the present application.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A RACK module, comprising: the battery protection device comprises a shell, and a battery, a battery protection unit, a DC/DC conversion circuit and a control unit which are arranged in the shell; wherein:
the positive electrode and the negative electrode of the battery are connected with one side of the DC/DC conversion circuit through the battery protection unit;
the RACK module is connected with an external power port and is arranged on the shell and internally connected with the other side of the DC/DC conversion circuit;
the battery protection unit and the DC/DC conversion circuit are both controlled by the control unit, and the control unit is respectively connected with the battery and external communication.
2. The RACK module of claim 1, wherein the state of the DC/DC conversion circuit is a stop output to enable short circuit protection for the RACK module when the power port is shorted.
3. The RACK module of claim 1, wherein the battery protection unit comprises:
the first fuse and the first single-stage switch are arranged on a lead between the positive electrode of the battery and the positive electrode of the corresponding side of the DC/DC conversion circuit and are connected in series;
the second fuse and the second single-stage switch are arranged on a lead between the negative electrode of the battery and the negative electrode of the corresponding side of the DC/DC conversion circuit and are connected in series;
the first single-stage switch and the second single-stage switch are both controlled by the control unit.
4. The RACK module of any of claims 1-3, wherein the battery protection unit and the DC/DC conversion circuit are integrated into a protection conversion module.
5. The RACK module of claim 4, wherein said protection switch module is disposed within said housing in a space on a side of said battery.
6. The RACK module of any of claims 1-3, wherein the battery protection unit, the DC/DC conversion circuit, and the control unit are all independent devices.
7. A RACK module according to any of claims 1-3, wherein said control unit comprises: a BMS control unit and a conversion control unit; wherein:
the battery protection unit is controlled by the BMS control unit, and the BMS control unit is respectively in communication connection with the battery and the transformation control unit;
the DC/DC conversion circuit is controlled by the conversion control unit, and the conversion control unit is respectively connected with the BMS control unit and external communication;
the battery protection unit and the BMS control unit are integrated in a Battery Control Unit (BCU);
the DC/DC conversion circuit and the conversion control unit are integrated in a DC/DC converter.
8. An energy storage power conversion system, comprising: at least one energy storage converter PCS and a plurality of RACK modules according to any of claims 1-7;
the direct current side of the PCS is respectively connected with the power ports of the RACK modules;
and the PCS is respectively in communication connection with the control units in the RACK modules.
9. A light storage system, comprising: a photovoltaic inverter system and a plurality of RACK modules according to any of claims 1 to 7;
the power port of each RACK module is connected with the direct current bus of the photovoltaic inverter system;
and the control unit in each RACK module is in communication connection with the photovoltaic inverter system.
10. A wind storage system, comprising: a wind power generator, a current transformer and a plurality of RACK modules according to any of claims 1 to 7;
the output end of the wind driven generator is connected with the input end of the converter;
the power port of each RACK module is connected with the direct current bus of the converter;
and the control unit in each RACK module is in communication connection with the converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020386413.9U CN211480938U (en) | 2020-03-24 | 2020-03-24 | RACK module and application system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020386413.9U CN211480938U (en) | 2020-03-24 | 2020-03-24 | RACK module and application system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113922405A (en) * | 2021-10-29 | 2022-01-11 | 阳光电源股份有限公司 | Multi-stage energy storage system and control method thereof |
-
2020
- 2020-03-24 CN CN202020386413.9U patent/CN211480938U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113922405A (en) * | 2021-10-29 | 2022-01-11 | 阳光电源股份有限公司 | Multi-stage energy storage system and control method thereof |
| CN113922405B (en) * | 2021-10-29 | 2024-08-13 | 阳光电源股份有限公司 | Multi-stage energy storage system and control method thereof |
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