CN220753528U - Connection structure for managing energy storage battery and energy storage battery management system - Google Patents
Connection structure for managing energy storage battery and energy storage battery management system Download PDFInfo
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000003321 amplification Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
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- 238000007405 data analysis Methods 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The application provides a connection structure for managing an energy storage battery and an energy storage battery management system. A connection structure for managing energy storage battery includes battery cluster management unit BCU, at least one battery module management unit BMU and a plurality of battery boxes, and every battery box includes a plurality of battery modules, wherein: the battery modules are connected through direct current carrier communication cables, and the battery boxes are also connected through direct current carrier communication cables; the BMU is connected to the direct current carrier communication cable to connect at least one of the plurality of battery boxes; and the BCU is connected to the direct current carrier communication cable to connect the plurality of battery boxes.
Description
Technical Field
The application relates generally to the field of energy storage system communication control, and more particularly to a connection structure for managing an energy storage battery and an energy storage battery management system.
Background
As the state is inclined to the policy of the new energy industry, lithium batteries and battery management systems (Battery Management System, BMS) are widely used in many fields. With the gradual expansion of energy storage devices in recent years, the accuracy and the rate requirements of sampling data are also more and more strict, and the communication pressure on a BMS system is rapidly increased. The energy storage system batteries are distributed according to clusters, each cluster is composed of a plurality of battery packs, each battery pack is formed by connecting a plurality of groups of battery modules in series through copper bars, each battery module is formed by connecting a plurality of battery cells in series, voltage and temperature acquisition points of the batteries are distributed, a two-stage architecture of a conventional battery management system is generally selected for communication through a CAN bus or a daisy chain, a battery module management unit (Battery Management Unit, BMU) is designed to be smaller, a plurality of acquisition lines and control lines are required to be distributed in the energy storage system, the system design is complicated due to the distribution of wiring harnesses, the maintenance cost is high, the service period of the system is shortened finally, and the cost is increased.
Disclosure of Invention
The technical problem to be solved in the application is to provide a connection structure for managing an energy storage battery and an energy storage battery management system, which are simpler and easier to maintain.
For solving the technical problem, the application provides a connection structure for managing energy storage battery, its characterized in that, including battery cluster management unit BCU, at least one battery module management unit BMU and a plurality of battery box, every battery box includes a plurality of battery modules, wherein: the battery modules are connected through direct current carrier communication cables, and the battery boxes are also connected through direct current carrier communication cables; the BMU is connected to the direct current carrier communication cable to connect at least one of the plurality of battery boxes; and the BCU is connected to the direct current carrier communication cable to connect the plurality of battery boxes.
In one embodiment of the utility model, the BCU comprises a main control unit and a wireless receiving module which is interconnected with the main control unit; and each BMU comprises a slave control unit and a wireless transmitting module corresponding to the wireless receiving module, wherein the wireless transmitting module is interconnected with the slave control unit.
In an embodiment of the utility model, the master control unit and/or the slave control unit respectively comprise any one of a micro control unit MCU, a field programmable gate array FPGA or a digital signal processor DSP.
In one embodiment of the utility model, the direct current carrier communication cable comprises a copper bar or an electrical cable.
In one embodiment of the utility model, each battery box has a positive interface and a negative interface, the positive and negative interfaces of adjacent battery boxes being adapted to be interconnected by a direct current carrier communication cable, thereby enabling connection between the plurality of battery boxes by the direct current carrier communication cable.
In an embodiment of the present utility model, each BMU further includes a slave carrier modem module and a slave coupling module, wherein the slave carrier modem module is interconnected with the slave control unit, and the BMU is connected to the dc carrier communication cable through the slave coupling module.
In an embodiment of the present utility model, each BMU further includes a power amplifier, a shaping filter circuit, and a receiving circuit, wherein a forward path and a backward path corresponding to a signal transmission direction are provided between the slave carrier modem module and the slave coupling module, the forward path is directed by the slave carrier modem module to the slave coupling module, and the backward path is directed by the slave coupling module to the slave carrier modem module, wherein the power amplifier and the shaping filter circuit are sequentially connected in the forward path, and the receiving circuit is connected in the backward path.
In an embodiment of the present utility model, each BCU includes a master carrier modem module and a master coupling module, where the master carrier modem module is interconnected with a master control unit, and the BCU is connected to a dc carrier communication cable through the master coupling module.
In one embodiment of the utility model, each BMU further comprises a plurality of AFE chips, each AFE chip being interconnected with one battery module.
In one embodiment of the present utility model, a plurality of AFE chips are arranged in sequence, and every two adjacent AFE chips are interconnected by a daisy chain transformer.
In one embodiment of the utility model, the AFE chip employs an ADBMS1818 chip, and the number of AFE chips is 4, and the number of daisy-chain transformers is 3.
In an embodiment of the utility model, each BMU further comprises a DC-DC conversion module, the DC-DC conversion module being connected to the direct current carrier communication cable.
The utility model also provides an energy storage battery management system, which comprises: the host computer and the connection structure of any of the previous embodiments, wherein the host computer and the battery cluster management unit BCU in the connection structure are interconnected.
Compared with the prior art, the connection structure for managing the energy storage battery and the energy storage battery management, which are provided by the application, are connected through the direct current carrier communication cable between the plurality of battery modules and the plurality of battery boxes, a complex wire harness structure is not needed, the structure is simpler and easy to maintain, the service cycle of the system is prolonged, and the cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the accompanying drawings:
fig. 1 is a schematic view illustrating a connection structure between a battery module management unit and a battery box according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a connection structure for managing an energy storage battery according to an embodiment of the present application.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is obvious to those skilled in the art that the present application may be applied to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.
As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application. Furthermore, although terms used in the present application are selected from publicly known and commonly used terms, some terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present application be understood, not simply by the actual terms used but by the meaning of each term lying within.
It will be understood that when an element is referred to as being "on," "connected to," "coupled to," or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to," or "directly contacting" another element, there are no intervening elements present. Likewise, when a first element is referred to as being "electrically contacted" or "electrically coupled" to a second element, there are electrical paths between the first element and the second element that allow current to flow. The electrical path may include a capacitor, a coupled inductor, and/or other components that allow current to flow even without direct contact between conductive components.
Fig. 1 is a schematic diagram of a connection structure between a battery module management unit and a battery box according to an embodiment of the present application, and fig. 2 is a schematic diagram of a connection structure for managing an energy storage battery according to an embodiment of the present application. Referring to fig. 1-2 in combination, the present application provides a connection structure 100 (hereinafter, simply referred to as connection structure 100) for managing an energy storage battery, the connection structure 100 including a battery cluster management unit (Battery Control Unit, BCU) 110, at least one battery module management unit (Battery Management Unit, BMU) 120, and a plurality of battery boxes 130, wherein the battery boxes 130 include a plurality of battery modules p 1 、p 2 、……、p N-1 、p N And a plurality of battery modules p 1 ～p N Are serially connected in sequence.
Further, the battery cluster management unit 110 in this embodiment further includes a plurality of cascaded communication processing units a 1 、A 2 、……、A N-1 、A N And communication processing unit A 1 ～A N In cascade order (i.e.A 1 、A 2 、……、A N-1 、A N In sequence) with a plurality of battery modules p connected in series 1 ～p N And each communication processing unit is suitable for acquiring the data information of the corresponding battery module. It can be understood that the communication processing unit a in the present embodiment 1 Adapted to obtain a battery module p 1 Data information of (a), communication processing unit a 2 Adapted to obtain a battery module p 2 And so on up to the communication processing unit a N Adapted to obtain a battery module p N Is a data information of the (b).
In the present embodiment, referring to fig. 1, a battery case 130 is shownMultiple battery modules p 1 ～p N Is connected with the power supply through a direct current carrier communication cable 140; referring to fig. 2, the plurality of battery boxes 130 are also connected by a dc carrier communication cable 140. The battery module management unit 120 is connected to a plurality of battery modules p 1 ～p N A direct current carrier communication cable 140 therebetween so as to be connected to one of the plurality of battery boxes 130, as shown with reference to fig. 2, each of the battery module management units 120 is connected to the direct current carrier communication cable 140 in the corresponding battery box 130. Further, the battery cluster management unit 110 is also connected to the dc carrier communication cable 140 to connect the plurality of battery boxes 130.
Specifically, each of the battery boxes 130 in the present embodiment has a positive interface 131 and a negative interface 132, and the positive interfaces 131 and 132 between adjacent battery boxes 130 are sequentially connected by a direct current carrier communication cable 140.
Fig. 1-2 show a preferred embodiment of the present utility model, in which the dc carrier communication cable 140 is a copper bar. In other embodiments, dc carrier communication cable 140 also includes an electrical cable. It should be understood that, in practical applications, the plurality of battery boxes 130 mentioned above use the same dc carrier communication cable, and the battery module management unit 120 and the battery cluster management unit 110 are connected to the dc carrier communication cable, which may be specifically understood as being connected to different sections of the same copper bar, and no matter what connection is performed, signal transmission between the BCU/BMU and each battery box/battery module may be implemented through the copper bar.
In this embodiment, a plurality of cascaded communication processing units A 1 ～A N Also included are a plurality of cascaded Analog Front Ends (AFEs), each AFE chip interconnected with one battery module. The AFE can process the analog signal, and the processing object is a signal source (in this embodiment, the serial battery modules p 1 、p 2 、……、p N ) The main functions of the given analog signal include signal amplification, frequency conversion, modulation and demodulation, etc. In this embodiment, a plurality of cascaded communication processing units a 1 ～A N A plurality of analog front ends are used for corresponding a plurality of battery modules p 1 ～p N And sampling and balancing are carried out, and data information of each battery module is obtained.
As shown in fig. 1-2, a preferred embodiment is shown in which two adjacent AFE chips are interconnected by a daisy-chain transformer. In the control method provided by the application, a plurality of battery modules p in one battery box 130 1 ～p N Between through corresponding communication control units A 1 ～A N Performs daisy chain communication, each battery module p 1 ～p N The communication is not interfered with each other.
In one embodiment of the present utility model, the AFE chip uses ADBMS1818 chips, and the number of AFE chips is 4, and the number of daisy-chain transformers is 3. It will be appreciated that the daisy-chain transformer is disposed between adjacent AFE chips and thus is always 1 less in number than AFE chips.
Further, referring to fig. 1-2, the battery cluster management unit 110 further includes a main control unit 111 and a wireless receiving module 112, and the wireless receiving module 112 is interconnected with the main control unit 111. Correspondingly, the battery module management unit 120 further includes a slave control unit 121 and a wireless transmitting module 122, where the wireless transmitting module 122 and the slave control unit 121 are interconnected and correspond to the wireless receiving module 112. For example, the wireless receiving module 112 and the wireless transmitting module 122 may refer to a transceiver device in a wireless communication manner commonly known in the art, and detailed structures thereof are not described herein. By improving the structures of the BMU and the BCU and arranging the wireless transceiver module in the BMU, the functions of the BMU and the BCU can be further expanded on the basis of signal transmission through the direct current carrier communication cable, so that the BMU and the BCU can communicate with each other in a wireless mode, and data obtained in the wireless communication mode and the direct current carrier communication mode can be conveniently compared and analyzed, and the like, so that the stability and the expansibility of a connection structure for managing an energy storage battery and an energy storage battery management system used by the connection structure are improved. In general, in the present embodiment, the BMU module omits a wired communication (e.g., CAN, RS485, etc.) circuit from the conventional manner, thereby reducing the system cost; and the direct current carrier wave and the wireless communication technology further reduce the system cost by omitting a communication harness.
As shown in fig. 1-2, in a preferred embodiment of the present application, the master control unit 111 and the slave control unit 121 are both implemented as micro control units (Micro Controller Unit, MCU). In other embodiments, the master control unit 111 and/or the slave control unit 121 may also be a field programmable gate array FPGA or a digital signal processor DSP, which is not limited herein.
In order to facilitate understanding of the correspondence between the master control unit 111 in the battery cluster management unit 110 and the slave control unit 121 in the battery module management unit 120, the battery cluster management unit 110 and the battery module management unit 120 are respectively described in detail as follows:
in the embodiment shown in fig. 1-2, the battery cluster management unit 110 further includes a master carrier modem module 113 and a master coupling module 114, the master control unit 111 is interconnected with the master carrier modem module 113, and the master carrier modem module 113 is connected to the dc carrier communication cable 140 through the master coupling module 114, so as to realize connection between the battery cluster management unit 110 and the dc carrier communication cable 140.
Correspondingly, the battery module management unit 120 includes a slave carrier modulation and demodulation module 123 and a slave coupling module 124, the slave control unit 121 and the slave carrier modulation and demodulation module 123 are interconnected, and the slave carrier modulation and demodulation module 123 is connected to the dc carrier communication cable 140 through the slave coupling module 124, so as to realize connection between the battery module management unit 120 and the dc carrier communication cable 140. In this embodiment, the BMU and the BCU couple signals to the copper bar or the cable through the coupling module, so that signal transmission between the BMU and the BCU through the dc carrier communication cable 140 can be achieved.
Further, in this embodiment, the signal transmission between the slave carrier modem module 123 and the slave coupling module 124 is bidirectional, and a forward path H1 and a backward path H2 corresponding to the signal transmission direction are provided therebetween. The battery module management unit 120 further includes a power amplifier 125, a shaping filter circuit 126, and a receiving circuit 127, wherein the power amplifier 125 and the shaping filter circuit 126 are sequentially connected in the forward path H1, and the receiving circuit 127 is connected in the backward path H2. It will be appreciated that the signal transmitted from the slave carrier modem module 123 to the slave coupling module 124 will pass through the power amplifier 125 and the shaping filter circuit 126 in sequence, and the signal transmitted from the slave coupling module 124 to the slave carrier modem module 123 will only pass through the receiving circuit 127.
Specifically, the signals in the battery module management module 120 (including each battery module p 1 ～p N Data information such as voltage and temperature) of the battery cluster management unit 110 is transmitted to the slave control coupling module 124 after passing through the slave control carrier modulation and demodulation module 123, the power amplifier 125 and the shaping and filtering circuit 126 in sequence, and the signal level is amplified and the noise signal is screened, and then the signal is transmitted to the direct current carrier communication cable 140 through the slave control coupling module 124, and further transmitted to the master control unit 111 of the battery cluster management unit 110.
Correspondingly, the battery cluster management unit 110 acquires the signal sent by the battery module management module 120 through the master control carrier modulation and demodulation module 113 to collect the operation information of the battery cluster, and when abnormal conditions such as serious overvoltage, undervoltage, overcurrent (short circuit), electric leakage (insulation), over-temperature and the like occur, the battery cluster management unit 110 sends an instruction through the master control carrier modulation and demodulation module 113 to realize the control of the master control unit 111 to the slave control unit 121.
Further, each battery module management module 120 in the embodiment shown in fig. 1-2 further includes a DC-DC conversion module 128, the DC-DC conversion module 128 being connected to a direct current carrier communication cable 140. By adopting the DC-DC conversion module, the self-power supply of the battery box can be realized, the arrangement cost of a power supply circuit can be further saved on the premise of no external power supply, and the circuit connection mode is further optimized.
The utility model also provides an energy storage battery management system, which comprises a host computer and the connecting structure 100 of any embodiment, wherein the host computer is interconnected with the battery cluster management unit 110 in the connecting structure 100. Due to the adoption of the connection structure 100, the wire harness arrangement of the system is simplified by optimizing the internal structures of the BCU and the BMU according to the previous description, so that the complex wire harness connection structure in the CAN communication mode in the prior art is replaced by adopting a direct connection mode through the direct current carrier communication cable; meanwhile, as the wireless transceiver modules are further configured in the BCU and the BMU, the expansibility of the energy storage battery management system and the stability and reliability of the data analysis structure can be improved.
While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing application disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations of the present application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this application, and are therefore within the spirit and scope of the exemplary embodiments of this application.
Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present application may be combined as suitable.
Likewise, it should be noted that in order to simplify the presentation disclosed herein and thereby aid in understanding one or more application embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the subject application. Indeed, less than all of the features of a single embodiment disclosed above.
In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations that may be employed in some embodiments to confirm the breadth of the range, in particular embodiments, the setting of such numerical values is as precise as possible.
While the present application has been described with reference to the present specific embodiments, those of ordinary skill in the art will recognize that the above embodiments are for illustrative purposes only, and that various equivalent changes or substitutions can be made without departing from the spirit of the present application, and therefore, all changes and modifications to the embodiments described above are intended to be within the scope of the claims of the present application.
Claims (13)
1. A connection structure for managing energy storage batteries, characterized by comprising a battery cluster management unit BCU, at least one battery module management unit BMU and a plurality of battery boxes, each battery box comprising a plurality of battery modules, wherein:
the battery modules are connected through direct current carrier communication cables, and the battery boxes are also connected through the direct current carrier communication cables;
the BMU is connected to the dc carrier communication cable to connect at least one of the plurality of battery boxes; and
the BCU is connected to the dc carrier communication cable to connect the plurality of battery boxes.
2. The connection according to claim 1, wherein,
the BCU comprises a main control unit and a wireless receiving module which is interconnected with the main control unit; and
each BMU comprises a slave control unit and a wireless transmitting module corresponding to the wireless receiving module, wherein the wireless transmitting module is interconnected with the slave control unit.
3. The connection structure according to claim 2, wherein the master control unit and/or the slave control unit respectively comprise any one of a micro control unit MCU, a field programmable gate array FPGA or a digital signal processor DSP.
4. The connection structure of claim 1, wherein the dc carrier communication cable comprises a copper bar or an electrical cable.
5. The connection structure according to claim 1, wherein each of the battery boxes has a positive interface and a negative interface, the positive interfaces and the negative interfaces of adjacent battery boxes being adapted to be connected to each other by the direct current carrier communication cable, thereby connecting the plurality of battery boxes by the direct current carrier communication cable.
6. The connection structure of claim 2, wherein each of the BMUs further comprises a slave carrier modem module and a slave coupling module, wherein the slave carrier modem module is interconnected with the slave control unit, the BMU being connected to the dc carrier communication cable through the slave coupling module.
7. The connection structure of claim 6, wherein each of the BMUs further comprises a power amplifier, a shaping filter circuit, and a receiving circuit, the slave carrier modem module and the slave coupling module having a forward path and a backward path therebetween corresponding to a signal transmission direction, the forward path being directed by the slave carrier modem module to the slave coupling module, and the backward path being directed by the slave coupling module to the slave carrier modem module, wherein the power amplifier and the shaping filter circuit are sequentially connected in the forward path, and the receiving circuit is connected in the backward path.
8. The connection structure of claim 2, wherein each BCU includes a master carrier modem module and a master coupling module, wherein the master carrier modem module is interconnected with the master control unit, the BCU being connected to the dc carrier communication cable through the master coupling module.
9. The connection structure of claim 1, wherein each of said BMUs further comprises a plurality of AFE chips, each of said AFE chips being interconnected with a battery module.
10. The connection structure of claim 9, wherein said plurality of AFE chips are arranged in sequence and each adjacent two of said AFE chips are interconnected by a daisy-chain transformer.
11. The connection structure of claim 10, wherein the AFE chips are ADBMS1818 chips, and the number of AFE chips is 4, and the number of daisy-chain transformers is 3.
12. The connection structure of any one of claims 1 to 11, wherein each of the BMUs further comprises a DC-DC conversion module, the DC-DC conversion module being connected to the direct current carrier communication cable.
13. An energy storage battery management system, comprising: the host computer and the connection structure according to any one of claims 1 to 12, wherein the host computer and the battery cluster management unit BCU in the connection structure are interconnected.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118315695A (en) * | 2024-06-06 | 2024-07-09 | 东方旭能(山东)科技发展有限公司 | Battery monomer information acquisition method and information acquisition system thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118315695A (en) * | 2024-06-06 | 2024-07-09 | 东方旭能(山东)科技发展有限公司 | Battery monomer information acquisition method and information acquisition system thereof |
| CN118315695B (en) * | 2024-06-06 | 2024-09-20 | 东方旭能(山东)科技发展有限公司 | Battery monomer information acquisition method and information acquisition system thereof |
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