CN218415866U - Charging voltage and power automatic regulating system of energy storage system - Google Patents
Charging voltage and power automatic regulating system of energy storage system Download PDFInfo
- Publication number
- CN218415866U CN218415866U CN202222211047.5U CN202222211047U CN218415866U CN 218415866 U CN218415866 U CN 218415866U CN 202222211047 U CN202222211047 U CN 202222211047U CN 218415866 U CN218415866 U CN 218415866U
- Authority
- CN
- China
- Prior art keywords
- energy storage
- voltage
- battery
- intelligent
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a battery energy storage technical field especially relates to an energy storage system charging voltage, power automatic regulating system. Wherein, this energy storage system charging voltage, power automatically regulated system includes: the intelligent charging system comprises a battery cluster, an intelligent energy storage converter and at least one intelligent charging controller, wherein the battery cluster comprises at least one battery module connected in series; the intelligent charging controller is connected with the battery modules in parallel, and the intelligent charging controller corresponds to the battery modules one by one; the intelligent energy storage converter is connected with the battery clusters in series, and the intelligent energy storage converter is further connected with the at least one intelligent charging controller and used for charging the at least one battery module, and the cluster charging voltage when the at least one battery module is charged is adjusted according to the at least one intelligent charging controller. Adopt above-mentioned scheme the utility model discloses convenience and security when can improving energy storage system and use.
Description
Technical Field
The utility model relates to a battery energy storage technical field especially relates to an energy storage system charging voltage, power automatic regulating system.
Background
In the related technology, the battery energy storage power station mostly adopts a container mode, an energy storage system in a container is formed by connecting a plurality of battery clusters in parallel, and each battery cluster comprises a plurality of battery modules. Along with the operation of battery energy storage power station, the battery module inconsistency obviously strengthens, and to the same cutoff voltage, each battery module storage capacity is different, and state of charge (SOC) is different promptly, and over time will form the short slab in the whole battery cluster, leads to whole battery cluster charge-discharge capacity to reduce gradually, influences the security in battery energy storage power station even, and if directly change the battery module of whole battery cluster, will cause the waste of resource to the convenience when resulting in energy storage system to use is lower.
SUMMERY OF THE UTILITY MODEL
The utility model provides an energy storage system charging voltage, power automatic regulating system, convenience and security when main aim at improves energy storage system and uses.
According to the utility model discloses an aspect provides an energy storage system charging voltage, power automatically regulated system, include: the intelligent charging system comprises a battery cluster, an intelligent energy storage converter and at least one intelligent charging controller, wherein the battery cluster comprises at least one battery module connected in series; wherein, the first and the second end of the pipe are connected with each other,
the intelligent charging controllers are connected with the battery modules in parallel and correspond to the battery modules one to one;
the intelligent energy storage converter is connected with the battery clusters in series, and is also connected with the at least one intelligent charging controller, and is used for charging at least one battery module and regulating cluster charging voltage when charging at least one battery module according to the at least one intelligent charging controller.
Optionally, in an embodiment of the present invention, the battery module includes at least one series-connected cell unit, and the cell unit includes at least one parallel-connected cell.
Optionally, in an embodiment of the present invention, the capacity of the battery cell corresponding to the battery cell unit is greater than a capacity threshold.
Optionally, in an embodiment of the present invention, the intelligent charging controller includes a diode and a voltage sensor connected in parallel; wherein the content of the first and second substances,
the diode and the voltage sensor are respectively connected with the battery module in parallel;
and the voltage sensor is also connected with the intelligent energy storage converter.
Optionally, in an embodiment of the present invention, the dead zone voltage of the diode is the same as the module cut-off voltage of the battery module.
Optionally, in an embodiment of the present invention, the intelligent energy storage converter includes a cluster voltage regulator and a variable power control system; wherein, the first and the second end of the pipe are connected with each other,
the cluster voltage regulator is respectively connected with the at least one intelligent charging controller and the variable power control system;
the variable power control system is connected in series with the battery cluster.
Optionally, in an embodiment of the present invention, the variable power control system multiplexes an energy storage converter.
Optionally, in an embodiment of the present invention, when the battery cluster discharges, the intelligent charging controller is in a non-operating state.
To sum up, the utility model provides an in one or more embodiments, energy storage system charging voltage, power automatic regulating system include: the intelligent charging system comprises a battery cluster, an intelligent energy storage converter and at least one intelligent charging controller, wherein the battery cluster comprises at least one battery module connected in series; the intelligent charging controller is connected with the battery modules in parallel, and the intelligent charging controller corresponds to the battery modules one by one; the intelligent energy storage converter is connected with the battery clusters in series, and is also connected with the at least one intelligent charging controller and used for charging the at least one battery module and adjusting the cluster charging voltage when the at least one battery module is charged according to the at least one intelligent charging controller. Therefore, the intelligent charging controller is connected in parallel to each battery module, each battery module can be independently controlled, the battery module can be automatically disconnected when the battery module reaches the module cut-off voltage, the remaining battery modules which do not reach the module cut-off voltage continue to be charged, each storage capacity of the battery modules can be fully utilized, and the battery utilization rate and the charging and discharging efficiency of the energy storage power station can be improved. Simultaneously, according to intelligent charge controller running state, automatically regulated cluster charging voltage, power can avoid because of the electric core overcharge that the constant power charges and lead to, security risk such as electric current is too big, security when can improving energy storage system and use to can improve the power station operation security comprehensively, can also reduce the condition of changing the battery module of whole battery cluster, convenience when can improving energy storage system and use.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an automatic charging voltage and power regulating system of an energy storage system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an intelligent charging controller according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the intelligent energy storage converter provided by the embodiment of the present invention.
Description of the reference numerals: a battery module-1; a cell unit-2; an intelligent charging controller-3; an intelligent energy storage converter-4; a diode-301; a voltage sensor-302; a cluster voltage regulator-401; variable power control system-402.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the related art, a layer of direct current/direct current converter is added on the basis of an original energy storage system to control a lower energy storage unit. Meanwhile, an optimizer consisting of a switching tube, a diode, an inductor, a capacitor and the like is adopted to carry out bypass or series connection conduction control on the battery module.
It is easy to understand that, although the DC/DC converter can improve the granularity of control, the DC/DC converter will cause a certain energy loss, which greatly reduces the voltage conversion efficiency. Meanwhile, the structure of the optimizer is complex, and in an actual engineering project, once a small component is abnormal, the whole optimizer cannot work, so that the whole battery cluster is directly quitted due to faults.
The present invention will be described in detail with reference to specific examples.
Fig. 1 is a schematic structural diagram of an automatic charging voltage and power adjusting system for an energy storage system according to an embodiment of the present invention.
As shown in fig. 1, the system for automatically adjusting charging voltage and power of the energy storage system comprises: the method comprises the following steps: the intelligent charging system comprises a battery cluster, an intelligent energy storage converter 4 and at least one intelligent charging controller 3, wherein the battery cluster comprises at least one battery module 1 which is connected in series; wherein the content of the first and second substances,
the intelligent charging controllers are connected with the battery modules in parallel and correspond to the battery modules one by one;
the intelligent energy storage converter is connected with the battery clusters in series, and the intelligent energy storage converter is further connected with the at least one intelligent charging controller and used for charging the at least one battery module, and the cluster charging voltage when the at least one battery module is charged is adjusted according to the at least one intelligent charging controller.
According to some embodiments, the battery module 1 refers to a module obtained by connecting a plurality of single battery cells in series and parallel to form a power supply through conductive connecting pieces. The battery module 1 is not particularly limited to a fixed module. For example, when the number of cells in the battery module 1 changes, the battery module 1 may change. When the connection relation of the battery cells in the battery module 1 is changed, the battery module can also be changed.
According to some embodiments, the smart charge controller 3 refers to a controller employed in controlling the state of charge of the battery module 1. The intelligent charging controller 3 does not refer to a fixed controller. For example, when a circuit corresponding to the intelligent charging controller 3 is changed, the intelligent charging controller 3 may be changed.
In some embodiments, the intelligent charging controller 3 may be configured to perform voltage detection on the battery module 1, obtain a battery module voltage corresponding to the battery module 1, and bypass the battery module 1 and send a bypass signal to the intelligent energy storage converter 4 when the battery module voltage is higher than a module cut-off voltage.
In some embodiments, the module cutoff voltage refers to a voltage used in determining whether the battery module needs to be bypassed. The module cut-off voltage does not refer to a fixed voltage. For example, when the battery module 1 is changed, the module cut-off voltage may be changed. When a voltage modification instruction for the charge cutoff voltage is acquired, the module cutoff voltage may also be changed.
According to some embodiments, the smart Power Conversion System (PCS) 4 refers to a converter used when charging at least one battery module with an ac voltage input from an ac grid. The intelligent energy storage converter does not refer to a fixed converter. For example, when the corresponding structure of the intelligent energy storage converter is changed, the intelligent energy storage converter can be changed.
In some embodiments, the intelligent energy storage converter 4 may determine a cluster charging voltage according to the set of battery module voltages input by the at least one intelligent charging controller 3, and charge the at least one battery module 3 according to the cluster charging voltage when the cluster charging voltage satisfies the charging condition.
In some embodiments, the battery module voltage set refers to a set in which at least one battery module voltage is aggregated. The battery module voltages in the battery module voltage set correspond to the battery modules 1 one to one. The set of battery module voltages does not refer to a fixed set. For example, when the battery module 1 is changed, the set of battery module voltages may be changed.
According to some embodiments, the cluster charging voltage refers to a charging voltage employed when charging the battery module 1. The cluster charging voltage does not refer to a fixed voltage. For example, when the battery module 1 is changed, the cluster charging voltage may be changed. When the set of battery module voltages changes, the cluster charging voltage may also change.
In some embodiments, the cluster charging voltage may be the sum of all battery module voltages in the set of battery module voltages.
In some embodiments, the charging condition refers to a condition employed in determining whether at least one battery module can be charged. The charging condition is not particularly limited to a certain fixed condition. For example, when a condition modification instruction for the charging condition is acquired, the charging condition may be changed.
According to some embodiments, when the cluster charging voltage does not satisfy the charging condition, the charging of at least one battery module 1 is stopped.
In some embodiments, the charging condition may be that the cluster charging voltage is not lower than the charging cutoff voltage. At this time, if the cluster charging voltage is not lower than the charging cutoff voltage, the at least one battery module 1 is charged according to the cluster charging voltage. If the cluster charging voltage is lower than the charge cutoff voltage, the charging of at least one battery module 1 is stopped.
In some embodiments, the charge cutoff voltage refers to a voltage employed when determining whether the battery module 1 needs to be charged. The charge cut-off voltage does not refer to a certain fixed voltage. For example, the charge cutoff voltage may be changed when a voltage modification instruction for the charge cutoff voltage is acquired.
To sum up, the embodiment of the utility model provides an energy storage system charging voltage, power automatic regulating system through parallelly connected intelligent charging controller on every battery module, can be to every battery module independent control, can be when this battery module reaches module cutoff voltage automatic disconnection, and the surplus battery module that does not reach module cutoff voltage continues to charge, and each storage capacity that can make full use of battery module can improve energy storage power station's battery rate of utilization and charge-discharge efficiency. Simultaneously, according to intelligent charge controller running state, automatically regulated cluster charging voltage, power can avoid because of the electric core overcharge that the constant power charges and lead to, security risk such as electric current is too big, security when can improving energy storage system and use to can improve the power station operation security comprehensively, can also reduce the condition of changing the battery module of whole battery cluster, convenience when can improving energy storage system and use.
Optionally, in an embodiment of the present invention, as shown in fig. 1, the battery module includes at least one series-connected cell unit 2, and the cell unit 2 includes at least one parallel-connected cell.
According to some embodiments, the cell capacity corresponding to the cell unit 2 is greater than the capacity threshold.
In some embodiments, the capacity threshold is not specific to a fixed threshold. For example, the capacity threshold may change when a threshold modification instruction for the capacity threshold is acquired.
It is easy to understand that, for the cells with smaller capacity, the cells are firstly connected in parallel to form the battery module 1 with the cell capacity larger than the capacity threshold value and then connected in series. To the great electric core of capacity, directly carry out series connection as battery module 1, can improve the result of use of electric core. Meanwhile, based on the battery cell-module-cluster structure, the intelligent charging controller is connected in parallel to each battery module, each battery cell can be controlled independently, the battery cells in the battery module can be automatically disconnected when the battery cells are charged to reach the cell cut-off voltage, the remaining battery cells which do not reach the cell cut-off voltage are continuously charged, each storage capacity of the battery cells can be fully utilized, and the battery utilization rate and the charging and discharging efficiency of the energy storage power station can be improved.
Optionally, in an embodiment of the present invention, fig. 2 is a schematic structural diagram of a charging voltage and power automatic regulating system of a second energy storage system according to an embodiment of the present invention. As shown in fig. 2, the intelligent charging controller 3 includes a diode 301 and a voltage sensor 302 connected in parallel; wherein the content of the first and second substances,
the diode 301 and the voltage sensor 302 are connected in parallel to the battery module 1, respectively;
the voltage sensor 302 is also connected to the intelligent energy storage converter 4.
According to some embodiments, the dead zone voltage of the diode 301 is the same as the module cut-off voltage of the battery module 1. Accordingly, the diode 301 can bypass the battery module 1 when the battery module voltage corresponding to the battery module 1 is higher than the module cutoff voltage.
In some embodiments, the module cutoff voltage refers to a voltage used when determining whether or not the battery module 1 needs to be bypassed. The module cut-off voltage is not particularly specified to a fixed voltage. For example, when the battery module is changed, the module cutoff voltage may be changed. When a voltage modification instruction for the charge cutoff voltage is acquired, the module cutoff voltage may also be changed.
According to some embodiments, the voltage sensor 302 may detect the terminal voltage of the battery module 1 and output the battery module voltage corresponding to the battery module 1 to the intelligent energy storage converter 4.
In some embodiments, when the battery module 1 reaches the module cutoff voltage during charging, the diode 301 is turned on, thereby bypassing the battery module 1. Meanwhile, the battery module voltage collected by the voltage sensor 302 will form a cliff type drop, and a bypass signal is transmitted to the intelligent energy storage converter 4.
In some embodiments, when the battery module 1 does not reach the module cut-off voltage or is in the discharging state during charging, the diode 301 is not turned on, and the voltage sensor 302 detects the terminal voltage of the battery module 1 and outputs the battery module voltage corresponding to the battery module 1 to the intelligent energy storage converter 4.
It is easy to understand that the intelligent charging controller 3 only includes two small components, namely a diode 301 and a voltage sensor 302, and has a simple and efficient structure and a low failure rate.
Optionally, in an embodiment of the present invention, fig. 3 is a schematic structural diagram of a charging voltage and power automatic regulating system of a third energy storage system provided by an embodiment of the present invention. As shown in fig. 3, the intelligent energy storage converter 4 comprises a cluster voltage regulator 401 and a variable power control system 402; wherein, the first and the second end of the pipe are connected with each other,
the cluster voltage regulator 401 is respectively connected with at least one intelligent charging controller 3 and a variable power control system 402;
the variable power control system 402 is connected in series with the battery cluster.
According to some embodiments, the cluster voltage regulator 401 may determine the cluster charging voltage from a set of battery module voltages input by the at least one intelligent charging controller 3.
Specifically, when the cluster voltage regulator 401 acquires the battery module voltage set input by the at least one intelligent charging controller 3, the cluster voltage regulator 401 may automatically sum all the battery module voltages in the battery module voltage set, and transmit the cluster charging voltage obtained by the summation to the variable power control system 402.
According to some embodiments, the variable power control system 402 may convert an ac voltage input from an ac power grid into a cluster charging voltage and charge at least one battery module according to the cluster charging voltage when the cluster charging voltage satisfies a charging condition.
In some embodiments, the variable power control system may multiplex the energy storage converters. Therefore, when the variable power control system 402 obtains the cluster charging voltage input by the cluster voltage regulator 401, the variable power control system 402 can multiplex the function of the energy storage converter, convert the ac voltage input by the ac power grid into the cluster charging voltage, and charge at least one battery module according to the cluster charging voltage.
It is easy to understand that the cost of the intelligent energy storage converter can be reduced by setting the variable power control system 402 to reuse the function of the energy storage converter.
Optionally, in an embodiment of the present invention, when the battery cluster discharges, the intelligent charging controller is in a non-operating state.
It is easy to understand that, when the battery cluster is in the discharge state, the intelligent charging controller 3 can be in the idle state, i.e. the non-working state, and the energy storage system discharges according to the conventional power station operation mode, so that the energy consumption of the energy storage system during operation can be reduced.
To sum up, the embodiment of the utility model provides an energy storage system charging voltage, power automatic regulating system, include: the intelligent charging system comprises a battery cluster, an intelligent energy storage converter and at least one intelligent charging controller, wherein the battery cluster comprises at least one battery module connected in series; the intelligent charging controller is connected with the battery modules in parallel, and the intelligent charging controller corresponds to the battery modules one by one; the intelligent energy storage converter is connected with the battery clusters in series, and the intelligent energy storage converter is further connected with the at least one intelligent charging controller and used for charging the at least one battery module, and the cluster charging voltage when the at least one battery module is charged is adjusted according to the at least one intelligent charging controller. Therefore, the intelligent charging controller is connected in parallel to each battery module, each battery module can be independently controlled, the battery module can be automatically disconnected when the battery module reaches the module cut-off voltage, the remaining battery modules which do not reach the module cut-off voltage continue to be charged, each storage capacity of the battery modules can be fully utilized, and the battery utilization rate and the charging and discharging efficiency of the energy storage power station can be improved. Simultaneously, according to intelligent charge controller running state, automatically regulated cluster charging voltage, power can avoid because of the electric core overcharge that the constant power charges and lead to, security risk such as electric current is too big, security when can improving energy storage system and use to can improve the power station operation security comprehensively, can also reduce the condition of changing the battery module of whole battery cluster, convenience when can improving energy storage system and use.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms may be directed to different embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. An energy storage system charging voltage, power automatic regulating system which characterized in that includes: the intelligent charging system comprises a battery cluster, an intelligent energy storage converter and at least one intelligent charging controller, wherein the battery cluster comprises at least one battery module connected in series; wherein the content of the first and second substances,
the intelligent charging controllers are connected with the battery modules in parallel and correspond to the battery modules one to one;
the intelligent energy storage converter is connected with the battery clusters in series, and is also connected with the at least one intelligent charging controller, and is used for charging at least one battery module and regulating cluster charging voltage when charging at least one battery module according to the at least one intelligent charging controller.
2. The system of claim 1, wherein the battery module comprises at least one series-connected cell unit, and the cell unit comprises at least one parallel-connected cell.
3. The system of claim 2, wherein the cell capacity corresponding to the cell unit is greater than a capacity threshold.
4. The energy storage system charging voltage and power automatic regulating system according to claim 1, wherein the intelligent charging controller comprises a diode and a voltage sensor connected in parallel; wherein, the first and the second end of the pipe are connected with each other,
the diode and the voltage sensor are respectively connected with the battery module in parallel;
and the voltage sensor is also connected with the intelligent energy storage converter.
5. The system according to claim 4, wherein the dead-zone voltage of the diode is equal to the module cut-off voltage of the battery module.
6. The energy storage system charging voltage and power automatic regulating system according to claim 1, wherein the intelligent energy storage converter comprises a cluster voltage regulator and a variable power control system; wherein the content of the first and second substances,
the cluster voltage regulator is respectively connected with the at least one intelligent charging controller and the variable power control system;
the variable power control system is connected in series with the battery cluster.
7. The system as claimed in claim 6, wherein the variable power control system is a multi-use energy storage converter.
8. The system of claim 1 wherein the intelligent charge controller is inactive when the battery cluster is discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222211047.5U CN218415866U (en) | 2022-08-22 | 2022-08-22 | Charging voltage and power automatic regulating system of energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222211047.5U CN218415866U (en) | 2022-08-22 | 2022-08-22 | Charging voltage and power automatic regulating system of energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218415866U true CN218415866U (en) | 2023-01-31 |
Family
ID=85027332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222211047.5U Active CN218415866U (en) | 2022-08-22 | 2022-08-22 | Charging voltage and power automatic regulating system of energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218415866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040955A1 (en) * | 2022-08-22 | 2024-02-29 | 中国华能集团清洁能源技术研究院有限公司 | Method for automatically adjusting charging voltage and power of energy storage system, system and storage medium |
-
2022
- 2022-08-22 CN CN202222211047.5U patent/CN218415866U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024040955A1 (en) * | 2022-08-22 | 2024-02-29 | 中国华能集团清洁能源技术研究院有限公司 | Method for automatically adjusting charging voltage and power of energy storage system, system and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104052082B (en) | The light storage associating electric power system that a kind of off-network is incorporated into the power networks | |
| CN108155657B (en) | Energy storage converter, main circuit topology structure thereof and balance control method | |
| CN102422242A (en) | Control device and control method | |
| CN106786490A (en) | Distributed DC microgrid energy control method | |
| CN103023085B (en) | Independent photovoltaic storage battery grouping management method | |
| CN104362695A (en) | Series-battery-pack equalization system and control method thereof | |
| US20190036355A1 (en) | Method and Device for Equalizing Storage Battery for Photovoltaic Energy Storage System and Photovoltaic Energy Storage System | |
| CN203658549U (en) | Power battery detection device and power battery detection system including same | |
| US20220285950A1 (en) | Energy storage system and battery management method | |
| CN111245060A (en) | Battery pack parallel operation charging and discharging control system and method based on controllable one-way conduction circuit | |
| CN218415866U (en) | Charging voltage and power automatic regulating system of energy storage system | |
| CN202888862U (en) | Energy storage inverter suitable for distributed new energy power | |
| CN109286199B (en) | Energy storage control method and system of grid-connected type optical storage and charging system | |
| CN106026174B (en) | A kind of grid-connected photovoltaic system with intelligent power dividing function | |
| CN110165686B (en) | Charging device for electric automobile | |
| CN102810698A (en) | Storage battery pack, and method and system for storage battery pack charge and discharge management | |
| CN104767248A (en) | Intelligent energy source efficient management system | |
| CN205724935U (en) | A kind of grid-connected photovoltaic system with intelligent power dividing function | |
| CN201854071U (en) | Battery pack charging management system | |
| CN114825408A (en) | Energy storage system is utilized to retired power battery echelon | |
| CN114977304A (en) | Wind, light, diesel and energy storage integrated power supply system and method | |
| CN114094674A (en) | Battery pack parallel system | |
| CN114977211A (en) | Direct-current micro-grid based on hybrid energy storage and power supply method thereof | |
| CN204516867U (en) | A kind of intelligent energy accumulation management system being applied to photovoltaic art | |
| JP2018121468A (en) | Dc power feeding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |