CN116961189A - Battery energy storage system - Google Patents

Battery energy storage system Download PDF

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Publication number
CN116961189A
CN116961189A CN202310928827.8A CN202310928827A CN116961189A CN 116961189 A CN116961189 A CN 116961189A CN 202310928827 A CN202310928827 A CN 202310928827A CN 116961189 A CN116961189 A CN 116961189A
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CN
China
Prior art keywords
battery
circuit
battery cluster
controller
series
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.)
Pending
Application number
CN202310928827.8A
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Chinese (zh)
Inventor
刘洋
方日
吴晓磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sungrow Energy Storage Technology Co Ltd
Original Assignee
Sungrow Energy Storage Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sungrow Energy Storage Technology Co Ltd filed Critical Sungrow Energy Storage Technology Co Ltd
Priority to CN202310928827.8A priority Critical patent/CN116961189A/en
Publication of CN116961189A publication Critical patent/CN116961189A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a battery energy storage system, comprising: the device comprises an early warning device, a controller, a circuit breaking device and a battery cluster; the early warning device is connected with the controller; the controller is connected with the circuit breaking device; the circuit breaking device is arranged on a battery pack series circuit inside the battery cluster; the early warning device is used for sending a corresponding risk signal to the controller when the short circuit risk is detected; and the controller is used for controlling the risk signal to open the circuit breaking device so as to enable a battery pack serial circuit inside the battery cluster to be opened, thereby reducing the voltage of the battery cluster. Therefore, the invention can actively detect the short-circuit risk based on the early warning device, and then actively control the disconnection of the series circuit of the battery pack based on the risk signal, so that the voltage of the battery cluster can be rapidly and accurately reduced before the short-circuit occurs, and the damage caused by the short-circuit of the battery cluster is reduced.

Description

Battery energy storage system
Technical Field
The invention relates to the field of energy storage, in particular to a battery energy storage system.
Background
The current battery energy storage system consists of a plurality of battery clusters, wherein each battery cluster consists of hundreds of battery packs which are connected in series and parallel. The voltage of the battery cluster after series connection is up to 1000 volts, and if the battery cluster is short-circuited at the moment, serious safety accidents can be caused by high voltage. Therefore, how to reduce the voltage of the battery cluster in time before the battery cluster is shorted becomes a technical problem to be solved by the person skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a battery energy storage system that overcomes or at least partially solves the above-mentioned problems.
A battery energy storage system comprising: the device comprises an early warning device, a controller, a circuit breaking device and a battery cluster;
the early warning device is connected with the controller;
the controller is connected with the circuit breaking device;
the circuit breaking device is arranged on a battery pack series circuit inside the battery cluster;
the early warning device is used for sending a corresponding risk signal to the controller when the short circuit risk is detected;
and the controller is used for controlling the risk signal to open the circuit breaking device so as to enable a battery pack serial circuit inside the battery cluster to be opened, thereby reducing the voltage of the battery cluster.
Optionally, in some optional embodiments, the early warning device includes: a water fire fighting device;
the water fire control device is used for sending corresponding risk signals to the controller in advance when the water fire control system is detected to be started.
Optionally, in some optional embodiments, the early warning device includes: a liquid leakage detection device;
the leakage detection device is arranged in the battery cluster;
the leakage detection device is used for detecting whether the cooling liquid of the battery cluster leaks or not;
and if the leakage of the cooling liquid of the battery cluster is detected, the leakage detection device sends a corresponding risk signal to the controller.
Optionally, in some optional embodiments, the early warning device includes: a water immersion detection device;
the water immersion detection device is arranged in the battery cluster;
the water immersion detection device is used for detecting whether water is immersed in the battery cluster or not;
and if the water immersion in the battery cluster is detected, the water immersion detection device sends a corresponding risk signal to the controller.
Optionally, in some optional embodiments, the early warning device includes: a water fire control device, a liquid leakage detection device and a water immersion detection device;
the leakage detection device and the water immersion detection device are both arranged in the battery cluster;
the water fire control device is used for sending corresponding risk signals to the controller in advance when the water fire control system is detected to be started;
the leakage detection device is used for detecting whether the cooling liquid of the battery cluster leaks or not;
if the leakage of the cooling liquid of the battery cluster is detected, the leakage detection device sends a corresponding risk signal to the controller;
the water immersion detection device is used for detecting whether water is immersed in the battery cluster or not;
and if the water immersion in the battery cluster is detected, the water immersion detection device sends a corresponding risk signal to the controller.
Optionally, in some optional embodiments, the circuit breaking device includes: at least one energized fusing device;
the excitation type fusing device is connected in series between any two adjacent battery packs on a battery pack series circuit in the battery cluster, wherein one excitation type fusing device is connected in series between a pair of adjacent battery packs.
Optionally, in some optional embodiments, the circuit breaking device includes: at least one energized fusing device;
the excitation type fusing devices are connected in series in battery packs on a battery pack series circuit in the battery cluster, wherein one excitation type fusing device is connected in series in one battery pack.
Optionally, in some optional embodiments, the circuit breaking device includes: at least one circuit breaker;
the circuit breaker is connected in series between any two adjacent battery packs on a battery pack series circuit inside the battery cluster, wherein one circuit breaker is connected in series between a pair of adjacent battery packs.
Optionally, in some optional embodiments, the circuit breaking device includes: at least one circuit breaker;
the circuit breakers are connected in series inside battery packs on a battery pack series circuit inside the battery cluster, wherein one circuit breaker is connected in series inside one battery pack.
By means of the technical scheme, the battery energy storage system provided by the invention comprises the following components: the device comprises an early warning device, a controller, a circuit breaking device and a battery cluster; the early warning device is connected with the controller; the controller is connected with the circuit breaking device; the circuit breaking device is arranged on a battery pack series circuit inside the battery cluster; the early warning device is used for sending a corresponding risk signal to the controller when the short circuit risk is detected; and the controller is used for controlling the risk signal to open the circuit breaking device so as to enable a battery pack serial circuit inside the battery cluster to be opened, thereby reducing the voltage of the battery cluster. Therefore, the invention can actively detect the short-circuit risk based on the early warning device, and then actively control the disconnection of the series circuit of the battery pack based on the risk signal, so that the voltage of the battery cluster can be rapidly and accurately reduced before the short-circuit occurs, and the damage caused by the short-circuit of the battery cluster is reduced.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 shows a schematic structural diagram of a first battery energy storage system provided by the present invention;
fig. 2 is a schematic structural diagram of a second battery energy storage system according to the present invention;
fig. 3 shows a schematic connection diagram of a first battery cluster provided by the invention;
FIG. 4 is a schematic diagram showing the connection of a second battery cluster according to the present invention;
fig. 5 shows a schematic connection diagram of a third battery cluster according to the present invention;
fig. 6 shows a schematic connection diagram of a fourth battery cluster according to the present invention;
fig. 7 is a schematic diagram showing connection of a fifth battery cluster according to the present invention;
fig. 8 shows a schematic connection diagram of a sixth battery cluster provided by the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, the present invention provides a battery energy storage system, comprising: the device comprises an early warning device 100, a controller 200, a circuit breaking device 300 and a battery cluster 400;
the early warning device 100 is connected with the controller 200;
the controller 200 is connected with the circuit breaking device 300;
the circuit breaking device 300 is arranged on a battery PACK series circuit inside the battery cluster 400;
the early warning device 100 is configured to send a corresponding risk signal to the controller 200 when a short-circuit risk is detected;
the controller 200 is configured to control the breaking device 300 to open the risk signal, so that the PACK series circuit inside the battery cluster 400 is opened, thereby reducing the voltage of the battery cluster 400.
Optionally, the early warning device 100 of the present invention may be electrically connected or signal connected to the controller 200, so as to send a corresponding risk signal to the controller 200.
It should be noted that: the risk signal may indicate that the battery cluster 400 is at risk of a short circuit occurring, and thus, the controller 200 may control the breaking device 300 to open based on the risk signal.
Alternatively, the battery cluster 400 may include a plurality of battery PACKs PACK inside, and each battery PACK is connected in series to form the battery cluster 400. That is, the individual battery PACKs PACK connected in series directly affect the voltage of the battery cluster 400. The circuit breaking device 300 is connected in series in the battery PACK series circuit, and when the circuit breaking device 300 is opened, the battery PACK series circuit is opened, so that the number of battery PACKs PACK connected in series is reduced. In general, the greater the number of battery PACKs PACK in series, the higher the voltage formed, irrespective of the voltage of each battery PACK itself. Thus, the voltage of the battery cluster 400 can be reduced by reducing the number of battery PACKs connected in series.
Optionally, the pre-warning device 100 is not limited in particular, and any feasible manner falls within the scope of the present invention. For example, in some alternative embodiments, the early warning device 100 includes: a water fire fighting device;
the water fire control device is used for sending corresponding risk signals to the controller 200 in advance when the water fire control system is detected to be started.
Optionally, the water fire protection device of the present invention may be integrated in an existing water fire protection system, and before the existing water fire protection system detects a fire occurrence signal and the water fire protection system is started, that is, before the water fire protection system sprays water, the water fire protection device may send a corresponding risk signal to the controller 200, so that the controller 200 may timely control the breaking device 300 to break, and reduce the voltage of the battery cluster 400 before the water fire protection system sprays water, so as to avoid the situation that the battery cluster 400 is shorted and the battery cluster 400 is in a high voltage state due to the water fire protection system sprays water. Therefore, the invention can reduce the voltage before the battery cluster 400 is short-circuited, and reduce the damage caused by the short circuit of the battery cluster 400 due to water spraying of the water fire protection system to a certain extent.
For another example, in some alternative embodiments, the early warning device 100 includes: a liquid leakage detection device;
the leakage detection device is arranged in the battery cluster 400;
the leakage detecting means is for detecting whether leakage of the cooling liquid of the battery pack 400 occurs;
if it is detected that the coolant of the battery pack 400 leaks, the leakage detection device sends a corresponding risk signal to the controller 200.
Optionally, the specific position where the leakage detection device is disposed in the battery cluster 400 is not limited in the present invention, and any position where the leakage detection device can be beneficial to accurately detect that the coolant in the battery cluster 400 leaks belongs to the protection scope of the present invention. For example, the leakage detecting means is provided at the bottom of the battery PACK 400 or at the lower part of the battery PACK.
Optionally, the leakage detection device is not particularly limited, and any device or apparatus capable of accurately detecting the cooling liquid belongs to the protection scope of the invention. For example, the liquid leakage detection device of the present invention refers to a wire electrode water immersion sensor or a dot electrode water immersion sensor. The main components of the cooling liquid of the current energy storage system are water and glycol, and when the cooling liquid leaks, the cooling liquid can flow to the water immersion sensor through the liquid collecting structure. The resistance of the probe electrode part of the water immersion sensor changes due to the moisture of the cooling liquid, and the water immersion sensor can identify the condition that the cooling liquid leaks in the energy storage system.
Alternatively, if a leakage of the coolant is detected, it indicates that the battery cluster 400 is at risk of a short circuit due to the leakage of the coolant. Accordingly, the leakage detection device may send a corresponding risk signal to the controller 200, which the present invention is not limited to.
For another example, in some alternative embodiments, the early warning device 100 includes: a water immersion detection device;
the water logging device is disposed in the battery cluster 400;
the water immersion detecting means is for detecting whether water is immersed in the battery cluster 400;
if it is detected that water is immersed in the battery pack 400, the water immersion detection device sends a corresponding risk signal to the controller 200.
Optionally, the specific position where the water logging device is disposed in the battery cluster 400 is not limited in the present invention, and any position where the water logging device can be beneficial to accurately detect whether water is permeated into the battery cluster 400 falls within the protection scope of the present invention. For example, the water logging device is provided at the bottom of the battery cluster 400 or is disposed along the support posts of the battery cluster 400.
Optionally, the water immersion detection device is not particularly limited, and any device or apparatus capable of accurately detecting water belongs to the protection scope of the invention. For example, the water immersion detection device of the present invention refers to a wire electrode water immersion sensor or a spot electrode water immersion sensor. When the current external water flows into the container of the energy storage system, the resistance of the probe electrode part of the water logging sensor is changed, and the water logging sensor can identify the water entering condition of the energy storage system.
Alternatively, if water penetration into the battery cluster 400 is detected, it is indicated that the battery cluster 400 is at risk of a short circuit due to water penetration. Thus, the water logging device may send a corresponding risk signal to the controller 200, to which the present invention is not limited.
Of course, other detecting devices capable of detecting other gases or liquids may be configured as the early warning device 100 of the present invention. For example, the present invention may also be configured with an early warning device 100 that can detect fluid metal and conductive airflow columns, as the invention is not limited in this regard.
Alternatively, the foregoing describes an embodiment in which only one type of early warning device 100 is provided, and the present invention may also provide multiple types of early warning devices 100 in a battery energy storage system.
For example, as shown in fig. 2, in some alternative embodiments, the early warning device 100 includes: a water fire control device 110, a liquid leakage detection device 120 and a water immersion detection device 130;
the leakage detecting device 120 and the water immersion detecting device 130 are both disposed in the battery cluster 400;
the water fire control device 110 is configured to send a corresponding risk signal to the controller 200 in advance when it is detected that the water fire control system is about to be started;
the leakage detecting device 120 is configured to detect whether the coolant in the battery cluster 400 leaks;
if it is detected that the coolant in the battery cluster 400 leaks, the leakage detection device 120 sends a corresponding risk signal to the controller 200;
the water immersion detecting device 130 is configured to detect whether water is immersed in the battery cluster 400;
if it is detected that water is immersed in the battery pack 400, the water immersion detection device 130 sends a corresponding risk signal to the controller 200.
Optionally, for the above-mentioned water fire protection device 110, the leakage detection device 120 and the water immersion detection device 130, please refer to the above-mentioned related explanation, and the disclosure will not be repeated.
Alternatively, in addition to this, the present invention may be configured to include only the water fire protection device 110 and the liquid leakage detection device 120, or to include only the water fire protection device 110 and the water immersion detection device 130, or to include only the liquid leakage detection device 120 and the water immersion detection device 130, which is not limited in this regard.
Optionally, as shown in fig. 3, in some alternative embodiments, the circuit interrupting device 300 includes: at least one energized fusing device 310;
the active fusing device 310 is connected in series between any two adjacent battery PACKs PACK on the battery PACK series circuit inside the battery cluster 400, wherein one active fusing device 310 is connected in series between a pair of adjacent battery PACKs PACK.
Alternatively, the active fusing device 310 of the present invention has an active control function. That is, the controller 200 can actively control the active fuse device 310 to open at any time. As shown in fig. 3, when the activated fusing device 310 is opened, the PACK series circuit inside the battery PACK 400 is caused to be opened into a plurality of sub-circuits, thereby reducing the voltage of the battery PACK 400.
Alternatively, the present invention is not particularly limited to the number of battery PACKs PACK included in the battery PACK 400, nor is the number of the active fuse devices 310. If there is only one active fuse device 310, as shown in fig. 4, the active fuse device 310 may be disposed in the middle of the PACK series circuit such that the PACK series circuit is split into two sub-circuits. Of course, the active fusing device 310 may be disposed at other locations, such as one third of the PACK series circuit, without limitation.
Alternatively, the present invention may connect in series the active fuse devices 310 inside the battery PACK if it is difficult to connect too many active fuse devices 310 in series between the battery PACKs due to the limitation of the size of the housing of the battery PACK 400.
That is, as shown in fig. 5, in some alternative embodiments, the circuit interrupting device 300 includes: at least one energized fusing device 310;
the excited fuse device 310 is connected in series inside a battery PACK of a battery PACK series circuit inside the battery cluster 400, wherein one excited fuse device 310 is connected in series inside one battery PACK.
Similarly, if it is difficult to connect the exciting fuse device 310 in series inside the battery PACK due to the limitation of the internal space of the battery PACK, the present invention may connect the exciting fuse device 310 in series between two adjacent battery PACKs, which is not limited in this regard.
Optionally, as shown in fig. 6, in some alternative embodiments, the circuit interrupting device 300 includes: at least one circuit breaker 320;
the circuit breaker 320 is connected in series between any two adjacent battery PACKs PACK on the battery PACK series circuit inside the battery cluster 400, wherein one circuit breaker 320 is connected in series between a pair of adjacent battery PACKs PACK.
Optionally, the circuit breaker 320 of the present invention has an active control function. That is to say, the controller 200 can actively control the opening of the circuit breaker 320 at any time. As shown in fig. 6, if the circuit breaker 320 is opened, the PACK series circuit inside the battery cluster 400 is caused to be opened into a plurality of sub-circuits, thereby reducing the voltage of the battery cluster 400.
Alternatively, the present invention is not particularly limited to the number of battery PACKs PACK included in the battery cluster 400, nor is the number of circuit breakers 320. If there is only one circuit breaker 320, as shown in fig. 7, the circuit breaker 320 may be disposed in the middle of the PACK series circuit such that the PACK series circuit is divided into two sub-circuits. Of course, the circuit breaker 320 may be disposed at other locations, such as one third of the PACK series circuit, without limitation.
Alternatively, if it is difficult to connect too many circuit breakers 320 in series between the battery PACKs PACK due to the limitation of the size of the housing of the battery PACK 400, the present invention may connect the circuit breakers 320 in series inside the battery PACKs.
That is, as shown in fig. 8, in some alternative embodiments, the circuit interrupting device 300 includes: at least one circuit breaker 320;
the circuit breakers 320 are connected in series inside the battery PACK on the battery PACK series circuit inside the battery cluster 400, wherein one circuit breaker 320 is connected in series inside one battery PACK.
Similarly, if it is difficult to connect the circuit breaker 320 in series inside the battery PACK due to the limitation of the internal space of the battery PACK, the present invention may connect the circuit breaker 320 in series between two adjacent battery PACKs in contrast, which is not limited by the present invention.
From this, it can be seen that the present invention can actively detect the risk of short circuit based on the early warning device 100, and then actively control the disconnection of the PACK series circuit based on the risk signal, so as to rapidly and accurately reduce the voltage of the battery cluster 400 before the short circuit occurs, and reduce the damage caused by the short circuit of the battery cluster 400.
In the present invention, 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
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.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (9)

1. A battery energy storage system, comprising: the device comprises an early warning device, a controller, a circuit breaking device and a battery cluster;
the early warning device is connected with the controller;
the controller is connected with the circuit breaking device;
the circuit breaking device is arranged on a battery pack series circuit inside the battery cluster;
the early warning device is used for sending a corresponding risk signal to the controller when the short circuit risk is detected;
and the controller is used for controlling the risk signal to open the circuit breaking device so as to enable a battery pack serial circuit inside the battery cluster to be opened, thereby reducing the voltage of the battery cluster.
2. The system of claim 1, wherein the pre-warning device comprises: a water fire fighting device;
the water fire control device is used for sending corresponding risk signals to the controller in advance when the water fire control system is detected to be started.
3. The system of claim 1, wherein the pre-warning device comprises: a liquid leakage detection device;
the leakage detection device is arranged in the battery cluster;
the leakage detection device is used for detecting whether the cooling liquid of the battery cluster leaks or not;
and if the leakage of the cooling liquid of the battery cluster is detected, the leakage detection device sends a corresponding risk signal to the controller.
4. The system of claim 1, wherein the pre-warning device comprises: a water immersion detection device;
the water immersion detection device is arranged in the battery cluster;
the water immersion detection device is used for detecting whether water is immersed in the battery cluster or not;
and if the water immersion in the battery cluster is detected, the water immersion detection device sends a corresponding risk signal to the controller.
5. The system of claim 1, wherein the pre-warning device comprises: a water fire control device, a liquid leakage detection device and a water immersion detection device;
the leakage detection device and the water immersion detection device are both arranged in the battery cluster;
the water fire control device is used for sending corresponding risk signals to the controller in advance when the water fire control system is detected to be started;
the leakage detection device is used for detecting whether the cooling liquid of the battery cluster leaks or not;
if the leakage of the cooling liquid of the battery cluster is detected, the leakage detection device sends a corresponding risk signal to the controller;
the water immersion detection device is used for detecting whether water is immersed in the battery cluster or not;
and if the water immersion in the battery cluster is detected, the water immersion detection device sends a corresponding risk signal to the controller.
6. The system of any one of claims 1-5, wherein the circuit interrupting device comprises: at least one energized fusing device;
the excitation type fusing device is connected in series between any two adjacent battery packs on a battery pack series circuit in the battery cluster, wherein one excitation type fusing device is connected in series between a pair of adjacent battery packs.
7. The system of any one of claims 1-5, wherein the circuit interrupting device comprises: at least one energized fusing device;
the excitation type fusing devices are connected in series in battery packs on a battery pack series circuit in the battery cluster, wherein one excitation type fusing device is connected in series in one battery pack.
8. The system of any one of claims 1-5, wherein the circuit interrupting device comprises: at least one circuit breaker;
the circuit breaker is connected in series between any two adjacent battery packs on a battery pack series circuit inside the battery cluster, wherein one circuit breaker is connected in series between a pair of adjacent battery packs.
9. The system of any one of claims 1-5, wherein the circuit interrupting device comprises: at least one circuit breaker;
the circuit breakers are connected in series inside battery packs on a battery pack series circuit inside the battery cluster, wherein one circuit breaker is connected in series inside one battery pack.
CN202310928827.8A 2023-07-25 2023-07-25 Battery energy storage system Pending CN116961189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310928827.8A CN116961189A (en) 2023-07-25 2023-07-25 Battery energy storage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310928827.8A CN116961189A (en) 2023-07-25 2023-07-25 Battery energy storage system

Publications (1)

Publication Number Publication Date
CN116961189A true CN116961189A (en) 2023-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310928827.8A Pending CN116961189A (en) 2023-07-25 2023-07-25 Battery energy storage system

Country Status (1)

Country Link
CN (1) CN116961189A (en)

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