Energy storage management and control system

Abstract

This invention provides an energy storage management and control system comprising a housing and electrical components. The internal space of the housing is divided into a DC high-voltage region, a low-voltage communication control region, and an AC power distribution region. The electrical components include DC high-voltage electrical components located in the DC high-voltage region, low-voltage electrical components and communication control electrical components located in the low-voltage communication control region, and AC power distribution components located in the AC power distribution region. This invention divides the internal space of the housing into a DC high-voltage region, a low-voltage communication control region, and an AC power distribution region, with the partitions for each component arranged relatively independently. The DC high-voltage region and the low-voltage communication control region are installed separately, reducing mutual interference and ensuring reliable operation of the energy storage management and control system. Furthermore, the arrangement of the partitions relatively independently is convenient for inspection and repair.

Description

Technical Field

[0001] The present invention relates to the technical field of measurement and control cabinets, and particularly to an energy storage management control system.

Background Art

[0002] The main role of the energy storage management control system is to distribute electrical energy to each load site using power distribution control, manage the battery, and perform power outage protection in case of short circuit, overload, and leakage of the circuit. The energy storage management control system may include an energy storage electrical control cabinet or an energy storage electrical control enclosure. The control of the energy storage electrical control cabinet commonly seen in the prior art is complex, and the related content is diverse, including the battery management system, the measurement and control system, the data collection unit of each sensor, the data exchange between the fire protection host and the measurement and control system, the data exchange between the measurement and control system and the battery management system, the data exchange between the measurement and control system and the upper-layer measurement and control system, and the data exchange between the upper-layer energy management system and the energy storage converter by the battery management system, as well as short circuit overload protection, overcharge over-discharge protection, over-temperature over-voltage protection, and surge voltage protection on the battery side.

[0003] Generally, the layout of the current energy storage electrical control cabinet installs the battery management system and the measurement and control system independently in two systems, and arranges the above two systems in a busbar cabinet and a measurement and control cabinet respectively. The battery management system is placed in the busbar cabinet, and the measurement and control system is placed in the measurement and control cabinet. Moreover, the above two independent busbar cabinets and measurement and control cabinets are placed in one large container. Usually, the total volume of the container is determined. Installing in this way not only increases the cost, occupies the precious space of the container, but also increases the software workload in the process of data collection and data exchange, makes the control strategy complex, and is prone to failure.

[0004] In energy storage systems, the energy storage electrical control cabinet typically contains only one set of uninterruptible power supply (UPS) systems. If the UPS system fails, it will not be able to output power properly, and the reliability of power supply to load devices in the energy storage system cannot be guaranteed. Furthermore, when applying energy storage systems to systems with voltage mismatches, it is necessary to additionally place one transformer and one set of power distribution protection systems at the AC input terminal of the UPS system. This not only increases the cost of system construction but also occupies additional space within the container, making it unfavorable for integrated system layouts.

[0005] Currently, the interior of an energy storage electrical control cabinet is divided into different areas according to function, and it is common for high-voltage electrical modules for connecting battery clusters to be placed in the DC high-voltage area. However, since the connection method between the high-voltage electrical modules and battery clusters is currently fixed, the energy storage electrical control cabinet can only be applied to one connection method. For example, one connection method involves connecting multi-cluster battery clusters in parallel on a single path before outputting to the energy storage electrical control cabinet. With such a connection method, only one set of high-voltage electrical modules needs to be placed inside the energy storage electrical control cabinet, and even in such an energy storage electrical control cabinet, there is not enough space in the DC high-voltage area to place more high-voltage electrical modules. To change the connection method, for example, by connecting two multi-cluster battery clusters in parallel before outputting to the energy storage electrical control cabinet, it is necessary to use an energy storage electrical control cabinet equipped with two sets of high-voltage electrical modules. Furthermore, adopting a connection method that outputs multi-cluster battery clusters in parallel on one or two paths can cause problems such as circulating current and charge / discharge barrel effect between battery clusters, making it impossible to completely discharge or charge the batteries. [Overview of the project]

[0006] In view of the shortcomings of the prior art described above, this application aims to provide an energy storage management and control system that solves or mitigates the problems present in the prior art described above.

[0007] To achieve the above-mentioned and other related objectives, on the one hand, the present application provides an energy storage management control system comprising a housing and electrical components disposed within the housing, wherein the internal space of the housing is divided into a DC high-voltage region, a low-voltage communication control region and an AC power distribution region, the electrical components include DC high-voltage electrical components, low-voltage electrical components, communication control electrical components and AC power distribution components, the DC high-voltage electrical components are disposed in the DC high-voltage region, the low-voltage electrical components and the communication control electrical components are both disposed in the low-voltage communication control region, and the AC power distribution components are disposed in the AC power distribution region.

[0008] In one embodiment of the present invention, the DC high-voltage region is for connecting to a multi-cluster battery cluster, and at least one high-voltage electrical module is provided in the DC high-voltage region, the high-voltage electrical module comprises a positive busbar, a negative busbar, and a DC surge protection unit, the high-voltage electrical module is used to connect at least one battery cluster and at least one energy storage current transformer, the number of high-voltage electrical modules is the same as the number of energy storage current transformers, the housing has a plurality of mounting members installed in the DC high-voltage region, the plurality of mounting members correspond to the positive busbar, the negative busbar, and the DC surge protection unit, respectively, and the plurality of mounting members are for detachably fixing and connecting the high-voltage electrical module to the housing.

[0009] In one embodiment of the present invention, the communication control electrical component further comprises an uninterruptible power supply system, the uninterruptible power supply system comprising a main power architecture and a backup power architecture for responding when the main power architecture is not operating.

[0010] In one embodiment of the present invention, the uninterruptible power supply system comprises a first uninterruptible power supply unit, a second uninterruptible power supply unit, a redundant module, and a host module, wherein both the first and second uninterruptible power supply units include a switching power supply module, a UPS module, and a lead-acid battery module, the AC input terminal of the switching power supply module is connected to a power grid system, the output terminal of the switching power supply is connected to the input terminal of the UPS module, the output terminal of the UPS module is connected to the input terminal of the lead-acid battery module, the lead-acid battery module is connected to the redundant module via the UPS module, the output terminal of the redundant module is connected to the load of an energy storage system, and the input terminal of the host module is connected to the output terminal of the switching power supply module, the output terminal of the UPS module, and the output terminal of the redundant module.

[0011] The energy storage management and control system of this invention divides the internal space of the enclosure into a DC high-voltage area, a low-voltage communication control area, and an AC power distribution area. The partitions for each component are arranged relatively independently, and the DC high-voltage area and the low-voltage communication control area are installed separately to reduce interference between them, ensuring reliable operation of the energy storage management and control system. Furthermore, the arrangement of the partitions relatively independently also makes inspection and repair convenient. At least one high-voltage electrical module is provided in the DC high-voltage area, and by detachably fixing and connecting the high-voltage electrical module to the enclosure, the energy storage management and control system can be adapted to three types of connection methods for battery clusters and energy storage current transformers, thereby improving the applicability range of the energy storage management system.

[0012] The energy storage management and control system of this invention integrates a conventional battery management system and a measurement and control system into a single battery management, measurement and control system. The control module of the system is an industrial control unit, and by utilizing the industrial control unit, data exchange between the industrial control unit, which is an external communication unit, and the lower battery cluster control unit, upper energy management system, and energy storage current transformer located outside the enclosure is integrated. Furthermore, by integrating and consolidating the I / O module unit, fire protection unit, temperature control unit, and high-voltage power on / off control unit, the number of electrical components is reduced, costs are lowered, the valuable space occupied by the enclosure is reduced, the amount of software work is reduced, and the control strategy is simplified.

[0013] The energy storage management and control system of this invention is equipped with complete electrical protection and hold functions, including short-circuit overload protection, overcharge over-discharge protection, over-temperature over-voltage protection, shock voltage protection, emergency stop delay relay protection, an external communication exchange module, a serial bus module, and a fault alarm dry contact output module, which can meet the requirements of various different projects. Furthermore, a temperature control unit and a fire-fighting unit are located within the enclosure to ensure the safe operation of the electrical devices. [Brief explanation of the drawing]

[0014] The features and performance of the present invention will be further described based on the following embodiments and their drawings. [Figure 1] Figure 1 is a schematic diagram of the internal structure of an energy storage management control system according to one embodiment of the present invention. [Figure 2] Figure 2 is a front view of an energy storage management and control system according to one embodiment of the present application. [Figure 3] Figure 3 is a schematic diagram of the structural relationship of the uninterruptible power supply system in the energy storage management control system of one embodiment of the present application. [Figure 4] Figure 4 is a schematic diagram of the connection relationships of switching power supply modules in an uninterruptible power supply system according to one embodiment of the present invention. [Figure 5]Figure 5 is a schematic diagram of the connection relationships of UPS modules in an uninterruptible power supply system according to one embodiment of the present invention. [Figure 6] Figure 6 is a schematic diagram of the connection relationships of redundant modules in an uninterruptible power supply system provided by one embodiment of the present invention. [Figure 7] Figure 7 is a schematic diagram of a high-voltage output management scheme for a multi-cluster battery cluster, including the energy storage management control system of Embodiment 1 of the present invention. [Figure 8] Figure 8 is a schematic diagram of a high-voltage output management scheme for a multi-cluster battery cluster, including the energy storage management control system of Embodiment 2 of the present invention. [Figure 9] Figure 9 is a schematic diagram of a high-voltage output management scheme for a multi-cluster battery cluster, including the energy storage management control system of Embodiment 3 of the present invention. [Figure 10] Figure 10 is a schematic diagram of the three-dimensional structure of the energy storage management control system of Embodiment 1 of the present invention. [Figure 11] Figure 11 is a front view of the energy storage management control system of Embodiment 1 of the present invention. [Figure 12] Figure 12 is a schematic diagram of the circuit configuration of Embodiment 1 of the present invention, including the DC high-voltage region. [Figure 13] Figure 13 is a rear view of the energy storage management control system of Embodiment 1 of the present invention. [Figure 14] Figure 14 is a schematic diagram of the three-dimensional structure of the energy storage management control system of Embodiment 2 of the present invention. [Figure 15] Figure 15 is a front view of the energy storage management control system of Embodiment 2 of the present invention. [Figure 16] Figure 16 is a rear view of the energy storage management control system of Embodiment 2 of the present invention. [Figure 17] Figure 17 is a schematic diagram of the three-dimensional structure of the energy storage management control system of Embodiment 3 of the present invention. [Figure 18] Figure 18 is a front view of the energy storage management control system according to Embodiment 3 of the present invention. [Figure 19] Figure 19 is a rear view of the energy storage management control system of Embodiment 3 of the present invention. [Figure 20] FIG. 20 is a perspective view of a cross section taken along line AA in FIG. 18. [Figure 21] FIG. 21 is a plan view of a cross section taken along line AA in FIG. 18.

BEST MODE FOR CARRYING OUT THE INVENTION

[0015] Note that the structures, ratios, sizes, etc. described in the drawings attached to this specification are all used only for those skilled in the art to understand and read in accordance with the content described in the specification, and are not used to limit the possible limiting conditions of the present application. Therefore, they have no substantial technical meaning, and any structural modification, change in proportional relationship, or adjustment of size should fall within the scope covered by the technical content disclosed in the present application as long as it does not affect the effects that the present application can produce and the objectives that can be achieved. At the same time, terms such as "upper", "lower", "left", "right", "center", and "one" cited in this specification are also for the purpose of being easy to describe and clarify, and are not for limiting the possible scope of the present application. Any change or adjustment of their relative relationship should be regarded as within the possible scope of the present application as long as it does not substantially change the technical content.

[0016] As shown in Figures 1 and 2, the present invention provides an energy storage management control system comprising a housing 4 and electrical components, wherein the internal space of the housing 4 is divided into a DC high-voltage region 101, a low-voltage communication control region 102, and an AC power distribution region 103. In this embodiment, the DC high-voltage region 101 is located at the bottom of the housing 4, the low-voltage communication control region 102 is located at the upper right of the housing 4, and the AC power distribution region 103 is located at the upper left of the housing 4, but is not limited thereto. In other embodiments, the positions of the DC high-voltage region 101, the low-voltage communication control region 102, and the AC power distribution region 103 within the housing 4 may be set as needed. As shown in Figures 1 and 2, the energy storage management control system of the present invention may be specifically implemented as an energy storage electrical control cabinet or energy storage electrical control enclosure of a partition having a rectangular cabinet or enclosure, but does not limit the specific shape or size of the energy storage management control system.

[0017] The electrical components include a DC high-voltage electrical component 1, low-voltage electrical components, communication control electrical components, and AC power distribution components. The DC high-voltage electrical component 1 is located in the DC high-voltage area 101, the low-voltage electrical components and communication control electrical components are mainly located in the low-voltage communication control area 102, and the AC power distribution components are mainly located in the AC power distribution area 103. By providing each electrical component separately, interference between them is reduced, ensuring reliable operation of the energy storage management control system. The arrangement of partitions that are relatively independent also makes inspection and repair convenient. The DC high-voltage electrical component 1 includes a high-voltage DC load switch 11 and a high-voltage DC inlet / outlet busbar 14. Both the high-voltage DC load switch 11 and the high-voltage DC inlet / outlet busbar 14 are fixed to an inspection panel, which is detachably connected to the inner wall of the housing 4 to facilitate inspection of the high-voltage DC load switch 11 and the high-voltage DC inlet / outlet busbar 14. The high-voltage DC inlet / outlet busbar 14 may specifically be a copper busbar. The communication control electrical component is equipped with a battery management measurement control system, which exchanges data with the lower-level battery cluster control unit, the upper-level energy management system, and the energy storage current transformer. Unlike the current approach of setting up the battery management system and measurement control system as two separate systems, this invention integrates the battery management system and measurement control system into a single battery management measurement control system. Furthermore, this battery management measurement control system integrates an external communication unit, reducing the number of electrical devices, lowering costs, and reducing the space of the enclosure 4. In addition, it reduces the amount of software work, enables control centralization, and simplifies the control strategy.

[0018] Specifically, the high-voltage DC load switch 11 is installed at the merging output terminal of the DC high-voltage region 101, and its opening and closing can be controlled remotely or manually. In the event of any emergency failure, the battery management measurement and control system can immediately open the high-voltage DC load switch 11, thereby disconnecting the electrical connection between the battery and the energy storage current transformer. Furthermore, the battery management measurement and control system can monitor the on / off state of the high-voltage DC load switch 11 in real time.

[0019] Specifically, low-voltage electrical components are components commonly found in low-voltage power distribution systems 33 in this field, and are not overly limited here.

[0020] As an example, referring to Figures 1 and 2, the battery management measurement and control system comprises an industrial control unit 321, a high-voltage power on / off control unit 322, a fault alarm dry contact output module, a switch module 325, and / or a serial bus module. The high-voltage power on / off control unit 322 is connected to the output terminal of the industrial control unit 321, and the industrial control unit 321 issues instructions via the high-voltage power on / off control unit 322, which controls the on / off state of the high-voltage DC load switch 11. The industrial control unit 321 exchanges data with a higher-level energy management system via the switch module 325. The industrial control unit 321 exchanges data with an energy storage current transformer via the switch module 325 or the serial bus module. The industrial control unit 321 exchanges data with a fault alarm dry contact output module via the switch module 325 or the serial bus module, and notifies the energy storage current transformer of a hardwire alarm.

[0021] Specifically, the industrial control unit 321 is the total control module of the battery management measurement and control system, and integrates an external communication unit. The industrial control unit 321 exchanges data with the higher-level energy management system via Ethernet or optical communication of the exchange module 325, reports fault information, receives commands from the higher-level energy management system, and performs protective actions. Specifically, it performs a protective action by controlling the high-voltage DC load switch 11 via the high-voltage power on / off control unit 322 to disconnect the high-voltage electrical connection. The industrial control unit 321 also exchanges data with the energy storage current transformer via the exchange module 325 or serial bus module, reports fault information, and may notify the energy storage current transformer of a hardwired alarm. The energy storage current transformer immediately reduces power and shuts down, and the industrial control unit 321 again controls the high-voltage power on / off control unit 322 to disconnect the high-voltage DC load switch 11, disconnecting the high-voltage electrical connection and outputting DC to the lower-level battery cluster control unit to disconnect the electrical connection at the battery cluster level.

[0022] As an example, the battery management measurement and control system further comprises a temperature control unit, which includes a temperature controller 3241 and a plurality of cooling fans 3242. The collection terminal of the temperature controller 3241 collects the ambient temperature inside the housing 4, and the data transmission terminal of the temperature controller 3241 is connected to the industrial control unit 321 via a serial bus module. The temperature controller 3241 transmits the collected ambient temperature to the industrial control unit 321. Note that some of the cooling fans 3242 may be placed at any location inside the housing 4 and are not limited to being placed in the low-voltage communication control area 102.

[0023] Specifically, if the ambient temperature collected by the temperature controller 3241 is higher than a preset temperature threshold, the temperature controller 3241 controls the operation of the cooling fan 3242 to be turned on, and if the ambient temperature collected by the temperature controller 3241 is lower than a preset temperature threshold, the temperature controller 3241 controls the operation of the cooling fan 3242 to be turned off. The ambient temperature inside the enclosure 4, collected by the temperature controller 3241, is output to the industrial control unit 321 via the serial bus module. If the temperature data collected by the temperature controller 3241 is greater than a preset temperature alarm value (the temperature alarm value is higher than the temperature threshold), the industrial control unit 321 notifies the upper-level energy management system via Ethernet or optical communication of the exchange module 325, then controls the hardwire alarm of the fault alarm dry contact output module to notify the energy storage current transformer to reduce power and shut down, and further controls the high-voltage DC load switch 11 via the high-voltage power on / off control unit 322 to disconnect the high-voltage electrical connection, instructing the lower-level battery cluster to disconnect the cluster-level electrical connection.

[0024] For example, multiple upper heat dissipation vents (not shown) are installed through the upper wall of the enclosure 4, and multiple lower heat dissipation vents (not shown) are installed through the lower side wall of the enclosure 4. A cooling fan 3242 is provided in either the upper or lower heat dissipation vents.

[0025] Specifically, the cooling fans 3242 are distributed in accordance with the upper and lower heat dissipation ports, and are positioned to quickly lower the temperature by facilitating convection of gas inside the enclosure 4 via the cooling fans 3242 at the upper and lower heat dissipation ports.

[0026] As an example, the battery management measurement and control system further comprises a fire-fighting unit, which includes a smoke sensor, the smoke sensor is connected to a fire-fighting system host located outside the enclosure, and the fire-fighting system host located outside the enclosure is connected to an industrial control unit 321.

[0027] Specifically, the smoke sensor is used to monitor the smoke concentration inside the enclosure 4. When the smoke sensor detects that the smoke concentration inside the enclosure 4 exceeds a preset smoke concentration threshold, it sends a smoke alarm signal to a fire system host outside the enclosure. After the industrial control unit 321 collects the smoke alarm signal from the fire system host, it controls the high-voltage power on / off control unit 322 to turn off the power. If a fire occurs inside the enclosure 4, the fire system host controls the response of the alarm bell. After the industrial control unit 321 receives the alarm information from the fire system host, it notifies the upper-level energy management system via Ethernet or optical communication attached to the exchange module 325. Subsequently, it controls the hardwire alarm of the fault alarm dry contact output module to notify the energy storage current transformer to reduce power and shut down. Furthermore, it controls the high-voltage DC load switch 11 via the high-voltage power on / off control unit 322 to disconnect the high-voltage electrical connection and instructs the lower battery cluster to disconnect the cluster-level electrical connection.

[0028] As an example, the battery management measurement and control system further comprises an I / O module unit 323, which is used to collect information and transmits the collected information to the industrial control unit 321 via a serial bus module.

[0029] Specifically, the I / O module unit 323 collects various types of information and can transmit the collected information to the industrial control unit 321. If the information collected from the I / O module unit 323 is abnormal, the industrial control unit 321 notifies the upper-level energy management system via Ethernet or optical communication of the exchange module 325 and notifies the energy storage current transformer of a hardwired alarm via the fault alarm dry contact output module, causing the energy storage current transformer to quickly reduce power and shut down. Furthermore, it controls the high-voltage power on / off control unit 322 to disconnect the high-voltage DC load switch 11, thereby disconnecting the high-voltage electrical connection, and also instructs the lower-level battery cluster control unit to disconnect the cluster-level electrical connection.

[0030] As an example, the communication control electrical component further comprises an uninterruptible power supply system 31, which comprises a main power architecture and a backup power architecture for responding when the main power architecture is not operating.

[0031] Specifically, the backup power architecture responds when the main power architecture fails to operate, ensuring that the power supply of the uninterruptible power supply system 31 remains normal. Each module of the uninterruptible power supply system 31 is equipped with a status feedback function. The I / O module unit 323 collects status information for each module of the uninterruptible power supply system 31 and can transmit the collected status information to the industrial control unit 321 via the serial bus module. The industrial control unit 321 can monitor the status information of each module of the uninterruptible power supply system 31 in real time. If an abnormality is detected in any module of the uninterruptible power supply system 31, the industrial control unit 321 can control the high-voltage power on / off control unit 322 to disconnect the high-voltage DC load switch 11.

[0032] As an example, the DC high-voltage component 1 further comprises a protection unit, the protection unit comprising a high-voltage DC surge protector 13 and two high-voltage DC fuses 12, the high-voltage DC surge protector 13 being provided at the merging output terminal of the DC high-voltage region 101, and the two high-voltage DC fuses 12 being provided at the positive input terminal and negative input terminal of the DC busbar of the DC high-voltage region 101, respectively.

[0033] Specifically, the high-voltage DC surge protector 13 is installed at the merging output terminal of the DC high-voltage region 101 to prevent damage to the DC side due to overvoltage shocks. When an overvoltage occurs in the DC bus due to an external lightning strike or the opening and closing of the high-voltage DC load switch 11, and the overvoltage value exceeds the voltage protection level of the high-voltage DC surge protector 13, the high-voltage DC surge protector 13 is triggered to immediately release the overvoltage to the ground. The high-voltage DC surge protector 13 has a state feedback function, and the I / O module unit 323 collects state information of the high-voltage DC surge protector 13 and can transmit the collected information to the industrial control unit 321 via the serial bus module. If an abnormality is detected, the industrial control unit 321 quickly controls the high-voltage power on / off control unit 322 to disconnect the high-voltage DC load switch 11.

[0034] Specifically, two high-voltage DC fuses 12 are provided at the positive and negative input terminals of the DC busbar in the DC high-voltage region 101, respectively, to enhance the reliability of the short-circuit protection function. The high-voltage DC fuses 12 are equipped with a state feedback function, and the I / O module unit 323 can collect state information of the high-voltage DC fuses 12. The collected information can be transmitted to the industrial control unit 321 via the serial bus module. If an abnormal state of the high-voltage DC fuses 12 is detected, the industrial control unit 321 notifies the upper-level energy management system via Ethernet or optical communication attached to the exchange module 325. Subsequently, it controls the hardwire alarm of the fault alarm dry contact output module to notify the energy storage current transformer to reduce power and shut down. Furthermore, it controls the high-voltage DC load switch 11 via the high-voltage power on / off control unit 322 to disconnect the high-voltage electrical connection and instructs the lower-stage battery cluster to disconnect the cluster-level electrical connection.

[0035] As an example, the electrical components include a manual hard emergency stop unit, which includes a delay relay 51, which is located in a low-voltage communication control area 102 (located in the low-voltage communication control area 102 to prevent accidental contact with high-voltage components and the creation of safety risks when the operator operates it manually), and is also connected to a high-voltage DC load switch 11. When the manual hard emergency stop unit is controlled manually, the delay relay 51 controls the disconnection of the high-voltage DC load switch 11.

[0036] Specifically, the delay relay 51 can delay disconnect the battery cluster level relays. When the manual hard emergency stop unit is manually controlled to perform an emergency stop, it disconnects the high-voltage DC load switch 11. The delay relay 51's response delays disconnects the drive power supply circuit located at the battery cluster level relays, delaying the disconnection of the battery cluster level relays and preventing damage to the battery cluster level relays due to on-load disconnection.

[0037] Preferably, the temperature controller 3241 is provided close to the delay relay 51 to monitor the ambient temperature at the delay relay 51, and since it generates little heat from the delay relay 51, it can represent the ambient temperature inside the housing 4.

[0038] As an example, the AC power distribution component includes an AC surge protector 21 provided on the input side of the DC high-voltage region 101.

[0039] Specifically, the AC surge protector 21 is installed on the input side of the DC high-voltage region 101 to prevent damage to the AC system due to overvoltage shocks and to ensure that the AC system's overvoltage category is Class II. Furthermore, if an overvoltage occurs in the AC system due to an external lightning strike or the opening and closing of the high-voltage DC load switch 11, and the overvoltage value exceeds the voltage protection level value of the AC surge protector 21, the AC surge protector 21 is triggered and operates, immediately releasing the overvoltage to the ground via the grounding copper bar located at the bottom of the housing 4. The AC surge protector 21 is equipped with state feedback, and the I / O module unit 323 can collect state information of the AC surge protector 21 and transmit the collected information to the industrial control unit 321 via the serial bus module. The battery management measurement and control system can monitor the state of the AC surge protector 21 in real time, quickly detect abnormalities, and control the high-voltage power on / off control unit 322 to disconnect the high voltage of the high-voltage DC load switch 11.

[0040] Furthermore, the AC power distribution component further comprises an input main circuit breaker 22 and a plurality of feeder circuit breakers 23. The configuration and function of both the input main circuit breaker 22 and the feeder circuit breakers 23 are well known in this field and are not excessively limited here.

[0041] The energy storage management and control system of the present invention integrates a conventional battery management system and measurement and control system into a single battery management, measurement and control system. The control module of this system is an industrial control unit 321. Data exchange is integrated between the industrial control unit 321, which is an external communication unit, and the lower battery cluster control unit, upper energy management system, and energy storage current transformer located outside the enclosure 4. Furthermore, by integrating and consolidating the I / O module unit, fire control unit, temperature control unit, and high-voltage power on / off control unit, the number of electrical components is reduced, costs are lowered, the valuable space occupied by the enclosure is reduced, the amount of software work is reduced, and the control strategy is simplified. At the same time, the internal space of the enclosure is divided into a DC high-voltage area 101, a low-voltage communication control area 102, and an AC power distribution area 103. The partitions for each component are arranged relatively independently, and the DC high-voltage area 101 and the low-voltage communication control area 102 are installed separately to reduce mutual interference and ensure reliable operation of the energy storage management control system. Moreover, the arrangement of the partitions relatively independently also makes inspection and repair convenient. The energy storage management control system of this invention is equipped with complete electrical protection and hold functions, including battery-side short-circuit overload protection, overcharge over-discharge protection, over-temperature over-voltage protection, shock voltage protection, emergency stop delay relay protection, an external communication exchange module, a serial bus module, and a fault alarm dry contact output module, which can meet the requirements of various different projects. Furthermore, a temperature control unit and a fire-fighting unit are installed in the enclosure to ensure the safe operation of the electrical devices.

[0042] The uninterruptible power supply system 31 in the energy storage management and control system of this application will be described in detail below.

[0043] UPS, or Uninterruptible Power Supply, is a system device that connects a battery to a host and converts DC power into electric power through modular circuits such as a host inverter. It is primarily used to provide a stable, uninterrupted power supply to a single computer, computer network system, or other power electronic devices such as solenoid valves and pressure transmitters.

[0044] Figure 3 is a schematic diagram of the structural relationship of the uninterruptible power supply (UPS) system in an energy storage management control system according to one embodiment of the present invention. As shown in Figure 3, the UPS system 31 comprises a first UPS unit 301, a second UPS unit 302, a redundant module 303, and a higher-level module 304. Inside each UPS unit, there is a switching power supply module, a UPS module, and a lead-acid battery module. That is, the first UPS unit 301 and the second UPS unit 302 are each equipped with a switching power supply module, a UPS module, and a lead-acid battery module, and the AC input terminal of the switching power supply module is connected to the power grid system #1 via breaker #2. The output terminal of the switching power supply is connected to the input terminal of the UPS module. The output terminal of the UPS module is connected to the input terminal of the lead-acid battery module. The lead-acid battery module is connected to the redundant module via the UPS module. The output terminal of the redundant module is connected to the load of the energy storage system. The input terminals of the higher-level module are connected to the output terminals of the switching power supply module, the UPS module, and the redundant module.

[0045] The first uninterruptible power supply unit 301 and the second uninterruptible power supply unit 302 may correspond to the main power supply architecture and backup power supply architecture described above, respectively.

[0046] In the embodiment of the present application, the first uninterruptible power supply unit 301 and the second uninterruptible power supply unit 302 have the same module configuration. As shown in Figure 3, the first uninterruptible power supply unit 301 is equipped with a switching power supply module 3011, a UPS module 3012, and a lead-acid battery module 3013. The second uninterruptible power supply unit 302 is equipped with a switching power supply module 3021, a UPS module 3022, and a lead-acid battery module 3023. Since the first uninterruptible power supply unit 301 and the second uninterruptible power supply unit 302 have a connection relationship through the same modules, for the sake of brevity and convenience of explanation, the embodiment of the present application will specifically describe the connection relationships of each module in the first uninterruptible power supply unit 301, and these specific descriptions will be applied to describe the connection relationships and interaction relationships of each module in the second uninterruptible power supply unit 302.

[0047] Figure 4 is a schematic diagram of the connection relationship of a switching power supply module provided in one embodiment of the present invention. As shown in Figures 3 and 4, preferably, in the first uninterruptible power supply unit 301, a rectifier module 3112 and a filter module 3111 are provided inside the switching power supply module 3011. The AC input terminal of the rectifier module 3112 is connected to the power grid system #1 via breaker #2, and the output terminal of the rectifier module 3112 is connected to the input terminal of the filter module 3111. The rectifier module 3112 rectifies the AC power transmitted from the power grid system #1 into low voltage DC power. The output terminal of the filter module 3111 is connected to the input terminal of the UPS module 3012, and the low voltage DC power is filtered by the filter module 3111 before being output to the UPS module 3012. Similarly, in the second uninterruptible power supply unit 302, a rectifier module 3212 and a filter module 3211 are provided inside the switching power supply module 3021. For example, after rectification and filtering, the switching power module 3011 converts the 400V AC power transmitted from the power grid into 24V DC power and outputs a 24V voltage signal. By using the switching power module 3011 to convert the AC power transmitted from the power grid into a voltage signal of a different voltage value and output it, it is possible to match systems with different voltage input requirements, eliminating the need to place transformers or power distribution protection systems at the AC input terminal of the uninterruptible power supply system 31, thereby reducing system construction costs and system site area. In other possible embodiments, the voltage value of the AC power transmitted from the power grid and the voltage value of the low-voltage DC power converted by the switching power module 3011 may be other values. Note that in this embodiment, the focus of technical consideration is on the combination and connection relationships between each module, and the specific components of each module are set according to the actual application and are not limited thereto.

[0048] In one embodiment, the AC input terminal of the switching power supply module 3011 is connected to the power system via breaker #2. Specifically, the AC input terminal of the rectifier module is connected to one end of breaker #2, and the other end of breaker #2 is connected to the power grid system. Furthermore, before connecting the switching power supply module 3011 to the power grid system, a breaker is required to ensure the safety of the power supply from the power grid system distribution to the uninterruptible power supply system 31. Preferably, as shown in Figures 3 and 4, the AC input terminal of the rectifier module 3112 is connected to the lower end of breaker #2, and the upper end of breaker #2 is connected to power grid system #1. Correspondingly, the AC input terminal of the rectifier module 3212 in the second uninterruptible power supply unit 302 is also connected to the lower end of breaker #2.

[0049] In one embodiment, the UPS module comprises a decoupling module, a charging module, a first switching element, and a dry contact module. Specifically, the input terminal of the decoupling module is connected to the output terminal of the switching power supply module. The output terminal of the decoupling module is connected to the input terminal of the charging module, the first switching element, the input terminal of the dry contact module, and the input terminal of the redundant module. The input terminal of the lead-acid battery module is connected to the output terminal of the charging module, the first switching element, and the output terminal of the dry contact module. Figure 5 is a schematic diagram of the connection relationships of the UPS module in one embodiment of the present application. As shown in Figures 3 to 5, preferably, in the first uninterruptible power supply unit 301, the UPS module 3012 comprises a decoupling module 3121, a charging module 3122, a first switching element 3123, and a dry contact module 3124. The decoupling module 3121 is connected to the output terminal of the filter module 3111. The decoupling module 3121 enables the output of low-voltage DC power from the filter module 3111 in one direction and controls the transmission of low-voltage DC power to the charging module 3122. When the output of the switching power supply module 3011 is normal, the charging module 3122 charges the lead-acid battery module 3013 until it is fully charged. If the output of the switching power supply module 3011 is abnormal, the first switching element 3123 switches to enable power supply from the lead-acid battery module 3013 to the load. In this embodiment, the switching power supply module 3011 supplies power to the load sequentially via the UPS module 3012 and the redundant module 303. The first switching element 3123 is provided in the UPS module 3012, and the lead-acid battery module 3013 is charged when the switching power supply module 3011 passes through the UPS module 3012.If the switching power supply module 3011 is malfunctioning, the first switching element 3123 connects the lead-acid battery module 3013 to the power supply circuit. The lead-acid battery module 3013 can then supply power to the load sequentially via the UPS module 3012 and the redundancy module 303, instead of the malfunctioning switching power supply module 3011, further improving the power supply reliability of the uninterruptible power supply. The dry contact module 3124 is used to characterize the overall operating state of the UPS module 3012. As shown in Figure 5, the first output pin 1 and the second output pin 2 of the dry contact module 3124 form a pair of dry contacts that open when a failure occurs in the UPS module 3012, indicating that a failure exists in the UPS module 3012 at this point. Correspondingly, in the second uninterruptible power supply unit 302, the UPS module 3022 includes a decoupling module 3221, a charging module 3222, the first switching element 3223, and the dry contact module 3224. The specific workflow and connection relationships for UPS module 3022 can be found in UPS module 3021, so they will not be explained again here.

[0050] In one embodiment, the redundant module comprises a MOS tube module and a normally closed dry contact. Specifically, the input terminal of the MOS tube module is connected to the output terminal of the UPS module. The output terminal of the MOS tube module is connected to the load of the energy storage system. The MOS tube module is connected to the first digital interface of the higher-level module via the normally closed dry contact. Figure 6 is a schematic diagram of the connection relationship of the redundant module provided in one embodiment of the present application. Preferably, referring to Figure 6, the redundant module 303 comprises a MOS tube module 331 and a normally closed dry contact 332. The first input terminal IN1 of the MOS tube module 331 is connected to the output terminal of the UPS module 3012 in the first uninterruptible power supply unit 301, i.e., the output terminal of the decoupling module 3121, and the second input terminal IN2 is connected to the output terminal of the UPS module 3022 in the second uninterruptible power supply unit 302, i.e., the output terminal of the decoupling module 3221. The output terminal of the MOS tube module 331 is connected to the load of the energy storage system. As shown in Figure 6, pins 1 and 2 of the redundant module 303 form a pair of normally closed dry contacts. When the output of the MOS tube module 331 is normal, the dry contacts of pins 1 and 2 are closed, and pin 2 outputs a 24V voltage signal. Conversely, pin 2 does not output a voltage signal and connects pin 2 to the first digital interface DI1 of the higher-level module 304. If a 24V digital signal is not input to the DI1 interface of the higher-level module 304, it indicates that the output state of the redundant module 303 is abnormal. This allows the energy storage system to be controlled via the higher-level module 304 to save data and transmit maintenance alarm information to the monitoring background. The input terminals of the higher-level module 304 correspond to digital interfaces DI1 through DI9.

[0051] In one embodiment, the input terminal of the host module is connected to the output terminal of the switching power supply module. Specifically, the second digital interface of the host module is connected to the DOCK pin of the filter module. Preferably, referring to Figure 3, the second digital interface DI2 of the host module 304 is connected to the output terminal of the filter module 3111 in the switching power supply module 3011. When the output of the switching power supply module 3011 is normal, the filter module 3111 outputs a 24V digital signal at the DOCK pin, and when the host module 304 receives a 24V digital signal at the DI1 pin, it can determine that the output of the switching power supply module 3011 is normal. If the host module 304 cannot receive a 24V digital signal at the DI2 pin, it determines that the output of the switching power supply module 3011 is abnormal. At this time, the energy storage system can be controlled to save data and maintenance alarm information can be sent to the monitoring background. The sixth digital interface DI6 of the host module 304 is connected to the DOCK pin of the filter module 3211 in the switching power supply module 3021.

[0052] In one embodiment, the input terminal of the host module is connected to the output terminal of the UPS module. Specifically, the second output pin of the dry contact module is connected to the third digital interface of the host module, and the first and second output pins of the dry contact module form a pair of dry contacts. The fourth output pin of the dry contact module is connected to the fourth digital interface of the host module, and the third and fourth output pins of the dry contact module form a pair of dry contacts. The sixth output pin of the dry contact module is connected to the fifth digital interface of the host module, and the fifth and sixth output pins of the dry contact module form a pair of dry contacts. Preferably, as shown in Figures 3 and 5, the second output pin 2 of the dry contact module 3124 is connected to the third digital interface DI3 of the host module 304. When the output of the UPS module 3012 is normal, the first output pin 1 and the second output pin 2 of the dry contact module 3124 are closed. At this time, a 24V digital signal is input to the third digital interface DI3 of the host module 304, and it is determined that the operating state of the UPS module 3012 is normal. If the output of the UPS module 3012 is abnormal, the dry contact module 3124 disconnects the first output pin 1 and the second output pin 2. At this time, a 24V digital signal is not input to the third digital interface DI3 of the host module 304, the host module 304 detects a fault alarm for the UPS module 3012, controls the energy storage system to save data, reduces power to turn off high voltage, and transmits maintenance alarm information to the monitoring background.

[0053] As shown in Figure 5, the dry contact module 3124 includes six output pins. The fourth output pin 4 of the dry contact module 3124 is connected to the fourth digital interface DI4 of the host module 304, and the third output pin 3 and the fourth output pin 4 form a pair of dry contacts. When no 24V digital signal is input to the fourth digital interface DI4 of the host module 304, the UPS module 3012 is determined to be in battery discharge mode. The sixth output pin 6 of the dry contact module 3124 is connected to the fifth digital interface DI5 of the host module 304, and when no 24V digital signal is input to the fifth digital interface DI5 of the host module 304, the UPS module 3012 is determined to be in battery charging mode. As an auxiliary consideration of the present invention, the second uninterruptible power supply unit 302 has the second output pin 2 of the dry contact module 3224 in the UPS module 3022 connected to the seventh digital interface DI7 of the host module 304, the fourth output pin 4 connected to the eighth digital interface DI8 of the host module 304, and the sixth output pin 6 connected to the ninth digital interface DI9 of the host module 304. The specific operating process between the UPS module 3022 and the host module 304 can be found in the UPS module 3012, so it will not be explained again here.

[0054] According to the uninterruptible power supply system 31 provided in the above embodiment, the uninterruptible power supply system 31 is equipped with two sets of uninterruptible power supply units, and when one of the sets of uninterruptible power supply units fails, the normal output of the uninterruptible power supply system 31 is ensured, improving the reliability of power supply to the energy storage system. Furthermore, the uninterruptible power supply system 31 is equipped with a higher-level module 304, and by connecting the input terminal of the higher-level module 304 to the output terminals of each module and redundant module in the uninterruptible power supply unit, the connection relationship between the higher-level module 304 and each module enables the uninterruptible power supply system 31 to make decisions regarding the output of each module, further improving the reliability of power supply to the energy storage system.

[0055] The energy storage management and control system of this invention can be used for managing multi-cluster battery clusters and is particularly applicable to container energy storage system applications. Three embodiments of this energy storage management and control system are described below.

[0056] Figure 7 is a schematic diagram of a high-voltage output management scheme for a multi-cluster battery cluster equipped with an energy storage management control system according to Embodiment 1 of the present invention. As shown in Figure 7, a plurality of battery clusters 7111 are shown, each containing a plurality of battery packs 7112 connected in series. These plurality of battery clusters 7111 belong to a single battery stack. Each battery cluster 7111 is connected to a corresponding high-voltage box 7113, and after passing through the high-voltage box 7113, the plurality of battery clusters 7111 are connected in parallel in a single path before being output to the energy storage management control system 7114, and after passing through the energy storage management control system 7114, are output to the DC side of an energy storage current transformer 7115 (PCS). The energy storage management control system 7114 includes a set of high-voltage electrical modules, each containing a fuse (FU) and a surge protector (SPD). Figure 7 shows that the multi-cluster battery cluster 7111 is connected in parallel to a single high-voltage output, so this approach is called the "approach of connecting multi-cluster battery clusters in parallel to a single high-voltage output."

[0057] Figure 8 is a schematic diagram of a high-voltage output management scheme for a multi-cluster battery cluster equipped with an energy storage management control system according to Embodiment 2 of the present invention. As shown in Figure 8, multiple battery clusters 7121 belong to one battery stack, and multiple battery clusters 7122 belong to another battery stack. The multiple battery clusters 7121 are connected in parallel to one path after passing through the high-voltage box 7123, and after passing through one set of high-voltage electrical modules in the energy storage management control system 7124, they are output to the DC side of one energy storage current transformer 7125. The multiple battery clusters 7122 are connected in parallel to one path after passing through the high-voltage box 7123, and after passing through another set of high-voltage electrical modules in the energy storage management control system 7124, they are output to the DC side of another energy storage current transformer 7126. Overall, since the multi-cluster battery clusters 7121 and 7122 are connected in parallel to two high-voltage outputs, this configuration is called the "configuration for connecting multi-cluster battery clusters in parallel to two high-voltage outputs."

[0058] The two schemes shown in Figures 7 and 8 have the advantage of being simple in structure and having low system cost for the energy storage management control systems 7114 and 7124, but they have problems such as inter-cluster circulation and charge / discharge barrel effect. Therefore, this application proposes "one high-voltage output management scheme for one cluster". Figure 9 is a schematic diagram of a high-voltage output management scheme for a multi-cluster battery cluster equipped with the energy storage management control system of Embodiment 3 of this application. As shown in Figure 9, multiple battery clusters 7131 are shown, and each battery cluster 7131 contains multiple battery packs connected in series. Each battery cluster 7131 is connected to a corresponding high-voltage box 7133, and after passing through the high-voltage box 7133, each battery cluster 7131 is output to the energy storage management control system 7134 as an independent path, and after passing through the energy storage management control system 7134, it is output to the DC side of the energy storage current transformer 7135 (PCS). Here, the energy storage current transformer 7135 includes 12 energy storage current transformers as shown in Figure 9. In this embodiment 3, each battery cluster 7131 corresponds to one set of high-voltage electrical modules and one energy storage current transformer, so this scheme is called "one high-voltage output management scheme per cluster".

[0059] By adopting the energy storage management control system 7134 of Example 3 and a single high-voltage output management scheme for each cluster, and by performing high-voltage output management independently for each cluster battery cluster 7131, problems such as inter-cluster circulation and charge / discharge barrel effect can be avoided.

[0060] This application proposes an energy storage management control system to expand the scope of application of the energy storage management control system and to enable the energy storage management control system to be compatible with the three high-voltage output schemes shown in Figures 7 to 9. The energy storage management control systems of Examples 1, 2, and 3 will be specifically described below with reference to the attached drawings.

[0061] Figure 10 is a schematic diagram of the three-dimensional structure of the energy storage management control system of Embodiment 1 of the present invention. The angles shown in Figure 10 are such that the front of the energy storage management control system 7400 faces outwards, and some of the panels that can cover the front of each area are omitted. Figure 11 is a front view of the energy storage management control system of Embodiment 1 of the present invention. As shown together in Figures 10 and 11, the energy storage management control system 7400 comprises a housing 7401 and a low-voltage communication control area 7410, an AC power distribution area 7420, and a DC high-voltage area 7430 arranged sequentially from top to bottom. Here, the housing 7401 is a substantially rectangular frame structure. In some embodiments, the housing 7401 may be integrally molded, or it may be designed in sections as shown in Figure 10. That is, the upper low-voltage communication control area 7410 and the AC power distribution area 7420 are placed in one frame structure, and the lower DC high-voltage area 7430 is placed in the other frame structure, with the two frame structures fixedly connected to each other, and the two frame structures may be of different sizes. As shown in Figure 10, the housing 7401 is defined as having a width in the X-axis direction, a thickness in the Y-axis direction, and a height in the Z-axis direction. The thickness and height of the two frames may be different. The frame structure of the housing 7401 allows for flexible connection with other components.

[0062] The low-voltage control region 7410 may also be called the low-voltage communication control region, and the power distribution region 7420 may also be called the AC power distribution region. In some embodiments, electrical components are arranged within the enclosure, and the electrical components include DC high-voltage electrical components, low-voltage electrical components, communication control electrical components, and AC power distribution components, with the DC high-voltage electrical components located in the DC high-voltage region 430, the low-voltage electrical components and communication control electrical components both located in the low-voltage control region 7410, and the AC power distribution components located in the power distribution region 7420. The following high-voltage electrical modules belong to the modules of high-voltage electrical components.

[0063] As shown in Figure 11, the DC high-voltage region 7430 is provided with one high-voltage electrical module, which comprises one positive busbar 7511, one negative busbar 7512, and one DC surge protection unit 7610. Together with Figure 7, the multi-cluster battery cluster is connected in parallel to one output via the high-voltage electrical module, and this output is connected to one energy storage current transformer 7115. Specifically, all positive electrodes of the multi-cluster battery cluster are connected to the positive busbar 7511, thereby connecting in parallel to one positive bus, and further connected to the energy storage current transformer 7115. All negative electrodes of the multi-cluster battery cluster are connected to the negative busbar 7512, thereby connecting in parallel to one negative bus, and then connected to the energy storage current transformer 7115. The positive and negative buses are also grounded via the DC surge protection unit 7610 and protected by the DC surge protection unit 7610. Figure 12 is a schematic diagram of a circuit showing that multiple battery clusters are connected in parallel to a single path and then output to a single energy storage current transformer. Here, when switch 71131 is turned on, the positive terminals of each battery cluster 7111 are connected in parallel to the P+ terminal of the energy storage current transformer PCS, and when switch 71132 is turned on, the negative terminals of each battery cluster 7111 are connected in parallel to the P- terminal of the energy storage current transformer PCS. At the same time, the parallel-connected positive terminals are grounded via DC surge protector 71141 and surge fuse 71143, and the parallel-connected negative terminals are grounded via DC surge protector 71142 and surge fuse 71143.

[0064] In Embodiment 1, the number of high-voltage electrical modules is the same as the number of energy storage current transformers, with each being one in number. The housing 7401 is provided with a plurality of mounting members in the DC high-voltage region 7430, the plurality of mounting members corresponding to the positive busbar 7511, the negative busbar 7512, and the DC surge protection unit 7610, respectively, and the plurality of mounting members are used to detachably fix and connect the high-voltage electrical modules to the housing 7401. In some embodiments, the mounting members include an inspection panel, the positive busbar 7511 and the negative busbar 7512 are detachably fixed on the inspection panel, and the inspection panel is detachably connected to the inner wall of the housing 7401.

[0065] Figure 13 is a rear view of the energy storage management control system of Embodiment 1 of the present invention. Specifically, as shown in Figures 10, 11, and 13, the positive electrode busbar 7511 and the negative electrode busbar 7512 are both L-shaped plate structures, with one side of the L-shape used to fix to the frame of the housing 7401. The mounting members corresponding to the positive electrode busbar 7511 and the negative electrode busbar 7512 may be fastening screws, and the frame of the housing 7401 may be provided with a fixing plate 74011 having mounting holes, and the positive electrode busbar 7511 and the negative electrode busbar 7512 can be fixed to the fixing plate 74011 by fastening screws and mounting holes. The housing 7401 is further provided with a guide rail 7620, and the DC surge protection unit 7620 may be provided with a guide rail 7610, and this guide rail 7620 is fixed on the housing 7401 by mounting members such as fastening screws. By providing mounting members, the high-voltage electrical module and the housing 7401 are detachably connected. This allows for flexible adjustment of the position of the DC surge protection unit 7610 on the guide rail 7620, facilitating wiring. After the position is determined, the DC surge protection unit 7610 is locked by a locking member, and if a change in position is necessary, the locking member is loosened, and the position of the DC surge protection unit 7610 on the guide rail 7620 is further adjusted.

[0066] Furthermore, referring to Figures 10 and 13, the positive busbar 7511 is provided with multiple wiring holes, designated M16 and M10 respectively, and represented as several large holes (M16) and small holes (M10) as shown in Figure 13. The negative busbar 7512 is also provided with multiple wiring holes, designated M16 and M10 respectively, and represented as several large holes (M16) and small holes (M10) as shown in Figure 13. Here, M10 is connected to the DC busbar of the battery cluster 7111, and M16 is connected to the DC busbar of the energy storage current transformer 7115. This embodiment 1 corresponds to the case where six battery clusters are connected in parallel to one output, so there are six M16 and six M10 on the positive busbar 7511 and six M10 on the negative busbar 7512. The DC surge protection unit 7610 includes a DC surge protector and a surge fuse, and also includes an overvoltage protection module that can provide overvoltage protection. The DC surge protection unit 7610 is positioned above the positive busbar 7511 and the negative busbar 7512.

[0067] Figure 14 is a schematic diagram of the three-dimensional structure of the energy storage management control system of Embodiment 2 of the present invention. Some of the components in Figure 14 are the same as those in Embodiment 1, so the same reference numerals are used, such as energy storage management control system 7400 and housing 7401, and related explanations may refer to the explanation in Embodiment 1. Compared to Embodiment 1, the high-voltage electrical module in Embodiment 2 is different. Figure 15 is a front view of the energy storage management control system of Embodiment 2 of the present invention. Figure 16 is a rear view of the energy storage management control system of Embodiment 2 of the present invention. Referring to Figures 14 to 16, the energy storage management control system 7400 of Embodiment 2 is provided with two high-voltage electrical modules in the DC high-voltage region of the housing 7401. The first high-voltage electrical module comprises a first positive busbar 7521, a first negative busbar 7522, and a first DC surge protection unit 7611. The second high-voltage electrical module comprises a second positive busbar 7531, a second negative busbar 7532, and a second DC surge protection unit 7612. Referring to Figure 8, Embodiment 2 is provided with two high-voltage electrical modules, each used to connect a multi-cluster battery cluster in parallel to a single output, which is connected to an energy storage current transformer 7125 or an energy storage current transformer 7126. Specifically, the positive and negative electrodes of multiple battery clusters 7121 are connected to a first positive busbar 7521 and a first negative busbar 7522, respectively, and are further connected to an energy storage current transformer 7125. Furthermore, the positive and negative electrodes of multiple battery clusters 7121 are each grounded via a first DC surge protection unit 7611. The positive and negative electrodes of multiple battery clusters 7122 are connected to a second positive busbar 7531 and a second negative busbar 7532, respectively, and are further connected to an energy storage current transformer 7126. Furthermore, the positive and negative electrodes of multiple battery clusters 7122 are each grounded via a second DC surge protection unit 7612.

[0068] Similar to Example 1, the DC surge protection units in both high-voltage electrical modules are mounted on the guide rail 7620. When used in conjunction with the "Scheme for Parallel Connection of Two High-Voltage Outputs of a Multi-Cluster Battery Cluster," the two high-voltage electrical modules can be mounted in the DC high-voltage region using multiple mounting members.

[0069] Figure 17 is a schematic diagram of the three-dimensional structure of the energy storage management control system of Embodiment 3 of the present invention. Some of the components in Figure 17 are the same as those in Embodiments 1 and 2, so the same reference numerals are used, such as energy storage management control system 7400 and housing 7401, and related explanations may refer to the explanations in Embodiments 1 and 2. Compared to Embodiments 1 and 2, the high-voltage electrical modules in Embodiment 3 are different. Figure 18 is a front view of the energy storage management control system of Embodiment 3 of the present invention. Figure 19 is a rear view of the energy storage management control system of Embodiment 3 of the present invention. Referring to Figures 17 to 19, the number of high-voltage electrical modules in Embodiment 3 is the same as the number of battery clusters, each high-voltage electrical module is used to connect one battery cluster that corresponds to it one-to-one, and each high-voltage electrical module is further used to connect one energy storage current transformer that corresponds to it one-to-one. Including Figure 9, since it includes 12 battery clusters, Embodiment 3 has 12 high-voltage electrical modules, and as one example, referring to Figure 18, each high-voltage electrical module includes one positive busbar 7541, one negative busbar 7542, and one DC surge protection unit 7613, so the DC high-voltage region is equipped with a total of 12 positive busbars 7541, 12 negative busbars 7542, and 12 DC surge protection units 7613. Specifically, the positive and negative electrodes of one battery cluster 7131 are connected to one positive busbar 7541 and one negative busbar 7542, respectively, and are further connected to one energy storage current transformer, and the positive and negative electrodes of this battery cluster 7131 are grounded via one DC surge protection unit 7613.

[0070] Due to space constraints, in Embodiment 3, as shown in Figure 17, twelve positive busbars 7541 and twelve negative busbars 7542 are arranged in three horizontal rows, with four positive busbars 7541 and four negative busbars 7542 in each row, and the positive busbars 7541 and negative busbars 7542 in the same row are arranged sequentially, i.e., one positive busbar 7541 is adjacent to one negative busbar 7542, alternating between each other. Viewed vertically, three positive busbars 7541 are arranged in a row, and three negative busbars 7542 are arranged in a row. Similar to Embodiments 1 and 2, each positive busbar 7541 and negative busbar 7542 is provided with two connection holes, which are used to connect the DC busbar of the corresponding battery cluster and the DC busbar of the corresponding energy storage current transformer, respectively. Referring to Figure 17, the two connection holes for the positive busbar 7541 and the negative busbar 7542 are located in different positions within the housing 7401. Using the positive busbar 7541 in Figure 17 as an example, one connection hole 75411 is located on the inside and the other connection hole 75412 is located on the outside, so the connection wiring can be clearly separated and cross-ring wiring can be avoided.

[0071] Furthermore, since there are many DC surge protection units 7613, multiple guide rails for installing the DC surge protection units 7613 can be installed inside the housing 7401. In Embodiment 3, two guide rails 7621 and 7622 are installed inside the housing 7401, and guide rails 7621 and 7622 are used to install six DC surge protection units 7613 each.

[0072] Figures 20 and 21 are both cross-sectional views along line AA in Figure 18. As shown in Figures 20 and 21, the housing 7401 has thickness along the Y-axis direction of the DC high-voltage region, and the positions of the positive busbars 7541 and negative busbars 7542 in the thickness direction differ from row to row to avoid wiring interference. Specifically, in Embodiment 3, the positive busbars 7541 and negative busbars 7542 are provided in a total of three rows, and the first row 7721, the second row 7722, and the third row 7723 are arranged sequentially from top to bottom in the height direction of the energy storage management control system, i.e., along the Z-axis, and are arranged so that they get closer and closer to the back surface 7402 of the housing 7401 from top to bottom in the thickness direction, i.e., along the Y-axis, from top to bottom, so that the multiple rows of positive busbars 7541 and negative busbars 7542 are stepped in the vertical direction. The advantages of this configuration are that it allows for clear distinction between wires corresponding to different rows during wiring, thus avoiding incorrect wiring, and it also helps prevent interference between multiple wires.

[0073] Referring to Figure 19, the back surface of the housing 7401 is provided with three crossbeams 7731, 7732, and 7733 for securing three rows of positive busbars 7541 and negative busbars 7542. These crossbeams 7731, 7732, and 7733 belong to the mounting members and are for detachably mounting the positive busbars 7541 and negative busbars 7542. Figure 19 is not intended to limit the number or specific positions of the crossbeams 7731, 7732, and 7733, but can be set according to actual needs. Referring to Figures 20 and 21, the placement of the crossbeams 7731, 7732, and 7733 on the frame of the housing 7401 is such that they sequentially approach the back surface 7402 of the housing 7401. Both ends of each crossbeam 7731, 7732, and 7733 may be fixed to the frame of the housing 7401. By positioning the crossbeams 7731, 7732, and 7733 inside the housing 7401, the depth of the positive busbar 7541 and negative busbar 7542 in each row inside the housing 7401 can be easily adjusted. The insulating plate 7710 may be mounted on the crossbeams 7731, 7732, and 7733.

[0074] Referring to Figures 17 and 20, in Embodiment 3, an insulating plate 7710 is placed between adjacent positive busbars 7541 and negative busbars 7542 in the same row. This insulating plate 7710 is used to insulate the adjacent positive busbars 7541 and negative busbars 7542 from each other, thereby avoiding the effects of leakage current and short circuits.

[0075] Exemplary, the insulating plate 7710 is a roughly rectangular plate of a size that covers and shields both the positive busbar 7541 and the negative busbar 7542 located on both sides, and after wiring is completed, an electrical gap of 30 mm or more is maintained between adjacent wiring clusters. Here, the electrical gap refers to the distance of the shortest path in the air between two electrical elements. For example, if the positive lead of one battery cluster is connected to one positive busbar 7541, and the contact hole on the positive busbar 7541 of the positive lead has a first contact, and its negative lead is connected to an adjacent negative busbar 7542, and the contact hole on the negative busbar 7542 of the negative lead has a second contact, the shortest path in the air from the first contact to the second contact is from the first contact through one side and the other side of the insulating plate 7710 to the second contact, and the length of this path should be maintained at 30 mm or more. As is clear from Figure 20, the projection of the insulating plate 7710 along the X-axis direction covers the positive busbar 7541 and negative busbar 7542 behind it.

[0076] Furthermore, the material of the insulating board 7710 may be resin. In one specific embodiment, the material of the insulating board 7710 is phenolic resin and glass fiber.

[0077] Referring to Figures 20 and 21, in Embodiment 3, the DC surge protection unit 7613 comprises a DC surge protector 76131 and a surge fuse 76132. The surge fuse 76132 is located behind the DC surge protector 76131, and the two correspond to each other one-to-one. Specifically, the surge fuse 76132 is a surge backup fuse. As shown in Figure 21, in the two rows of DC surge protection units 7613, the DC surge protectors 76131 in the upper row (first row) and the lower row (second row) have the same depth on the Y axis and are both close to the front surface 7403 of the housing 7401. The surge fuse 76132 in the first row of DC surge protection unit 7613 is closer to the front surface 7403 than the surge fuse 76132 in the second row of DC surge protection unit 7613. The advantages of this configuration include the convenience of wiring and the avoidance of wiring crosstalk. As mentioned earlier, the battery cluster leads pass through the busbar, are connected to the DC surge protector 76131, then to the surge fuse 76132, and finally to ground.

[0078] Referring to Figure 17, a rectangular door panel reinforcing rib 7530 is illustrated. In some embodiments, an isolation door (not shown) is also provided outside the DC high-voltage area, located at a position corresponding to the high-voltage electrical module, and the door panel reinforcing rib 7530 is provided on the inside of the isolation door. In some embodiments, an insulating member is provided on the isolation door, which is also located on the inside of the isolation door and facing inward towards the housing 7401, so that when the isolation door is closed, the positive and negative busbars can be enclosed inside, providing better isolation protection. In one embodiment, the insulating member is an insulating plate, bonded to the inside of the isolation door, and is sized to cover all of the positive busbars, negative busbars, and high-voltage electrical module. Furthermore, after the battery cluster and the high-voltage electrical module are connected, the cables gather in the cable groove at the bottom of the energy storage management control system 7400 and are then connected to the energy storage current transformer. The isolation door is used to isolate the energy storage management control system 7400 and the energy storage current transformer, placing the DC high-voltage area in a relatively enclosed and isolated environment to ensure the safe operation of the devices.

[0079] In addition, the positive and negative busbars in the above-described embodiment may both be copper bars.

[0080] Referring to Figure 11, in the embodiment of the present invention, the low-voltage communication control area 7410 may be provided with a three-stage BMS, a delay relay, a switching module, a display 7411, etc., and the AC power distribution area 7420 may be provided with a transformer 7421, an uninterruptible power supply system 7422, a circuit breaker 7423, a fire protection module, etc.

[0081] According to the present invention's energy storage management control system 7400, the DC high-voltage domain can be flexibly configured with high-voltage electrical modules corresponding to three different configurations. One energy storage management control system 7400 is compatible with three different connection configurations: "a configuration connecting multiple cluster battery clusters in parallel to one high-voltage output," "a configuration connecting multiple cluster battery clusters in parallel to two high-voltage outputs," and "a single high-voltage output management configuration for one cluster." This allows users to configure the DC high-voltage domain according to their actual needs, improving the utilization rate and versatility of the energy storage management control system 7400. Configurations 1 and 2 have the advantages of a simple structure and low system cost. The high-voltage output management configuration for one cluster in Configuration 3 can avoid problems such as inter-cluster circulation and charge / discharge barrel effects. Users can select the optimal configuration as needed based on the energy storage management control system 7400 of the present invention without replacing the electrical control box. While the above disclosure discusses several embodiments that are currently considered useful, using various examples, it should be understood that such details are not limited to the disclosed embodiments, but rather aim to cover all modifications and equivalent combinations that conform to the substance and scope of the embodiments of this application. For example, the system components described above can be implemented by hardware devices, but they can also be implemented solely by software solutions, such as by installing the described system on an existing server or mobile device.

Claims

1. An energy storage management and control system, The system comprises a housing and electrical components arranged within the housing, The internal space of the enclosure is divided into a DC high-voltage area, a low-voltage communication control area, and an AC power distribution area. The energy storage management control system is characterized in that the electrical components comprise DC high-voltage electrical components, low-voltage electrical components, communication control electrical components, and AC power distribution components, wherein the DC high-voltage electrical components are arranged in the DC high-voltage region, the low-voltage electrical components and the communication control electrical components are both arranged in the low-voltage communication control region, and the AC power distribution components are arranged in the AC power distribution region.

2. An energy storage management control system according to claim 1, The DC high-voltage region is used to connect to a multi-cluster battery cluster, and at least one high-voltage electrical module is provided in the DC high-voltage region, the high-voltage electrical module comprises a positive busbar, a negative busbar, and a DC surge protection unit, the high-voltage electrical module is used to connect at least one cluster battery cluster and at least one energy storage current transformer, the number of high-voltage electrical modules is the same as the number of energy storage current transformers, the housing has a plurality of mounting members installed in the DC high-voltage region, the plurality of mounting members correspond to the positive busbar, the negative busbar, and the DC surge protection unit, respectively, and the plurality of mounting members are used to detachably fix and connect the high-voltage electrical module to the housing, characterized in that the energy storage management control system is provided in the DC high-voltage region.

3. An energy storage management control system according to claim 2, An energy storage management control system characterized in that the number of high-voltage electrical modules is smaller than the number of clusters in the battery cluster, and some of the cluster battery clusters in the multi-cluster battery cluster are connected in parallel to a single path via the high-voltage electrical modules and output.

4. An energy storage management control system according to claim 2, An energy storage management and control system characterized in that the number of high-voltage electrical modules is the same as the number of clusters in the battery cluster, each high-voltage electrical module is used to connect one cluster battery cluster that corresponds one-to-one with the high-voltage electrical module, and each high-voltage electrical module is further used to connect one energy storage current transformer that corresponds one-to-one with the high-voltage electrical module.

5. An energy storage management control system according to claim 4, An energy storage management control system characterized in that a plurality of positive electrode busbars and a plurality of negative electrode busbars are arranged in multiple rows or columns parallel to each other, and in the same row, the positive electrode busbars and negative electrode busbars are arranged sequentially.

6. An energy storage management control system according to claim 5, The energy storage management control system is characterized in that the housing has thickness in the DC high-voltage region, and the positions of the positive and negative busbars in the thickness direction differ for each row.

7. An energy storage management control system according to claim 6, An energy storage management control system characterized in that the positions of multiple rows of positive and negative busbars in the thickness direction are arranged to move increasingly closer to the back surface of the housing from top to bottom.

8. An energy storage management control system according to claim 5, An energy storage management control system characterized in that an insulating plate is placed between adjacent positive and negative busbars in the same row.

9. An energy storage management control system according to claim 2, An energy storage management control system characterized in that an isolation door is further provided in the DC high voltage region, an insulating member is provided on the side of the isolation door closest to the housing, and the isolation door is provided on the outside of the housing corresponding to the DC high voltage region.

10. An energy storage management control system according to claim 1, The DC high-voltage electrical component comprises a high-voltage DC load switch and a high-voltage DC inlet / outlet busbar, both of which are fixed to an inspection panel, and the inspection panel is detachably connected to the inner wall of the housing. The energy storage management control system is characterized in that the communication control electrical component includes a battery management measurement and control system, and the battery management measurement and control system exchanges data with a lower-level battery cluster control unit, a higher-level energy management system, and an energy storage current transformer, respectively.

11. An energy storage management control system according to claim 10, The battery management measurement and control system comprises an industrial control unit, a high-voltage power on / off control unit, a fault alarm dry contact output module, a switching module and / or a serial bus module. The high-voltage power on / off control unit is connected to the output terminal of the industrial control unit, the industrial control unit issues instructions via the high-voltage power on / off control unit, and the high-voltage power on / off control unit controls the on / off state of the high-voltage DC load switch. An energy storage management control system characterized in that the integrated industrial control unit exchanges data with the upper-level energy management system via the exchange module, the integrated industrial control unit exchanges data with the energy storage current transformer via the exchange module or the serial bus module, the integrated industrial control unit exchanges data with the fault alarm dry contact output module via the exchange module or the serial bus module, and notifies the energy storage current transformer of a hardwire alarm.

12. An energy storage management control system according to claim 11, The battery management measurement and control system further comprises a temperature control unit, the temperature control unit comprising a temperature controller and a plurality of heat dissipation fans, the collection terminal of the temperature controller collects the ambient temperature inside the housing, the data transmission terminal of the temperature controller is connected to the industrial control unit via the serial bus module, and the temperature controller transmits the collected ambient temperature to the industrial control unit, characterized in that it is an energy storage management and control system.

13. An energy storage management control system according to claim 12, An energy storage management control system characterized in that a plurality of upper heat dissipation vents are installed through the upper wall of the enclosure, a plurality of lower heat dissipation vents are installed through the lower side wall of the enclosure, and the heat dissipation fans are provided at both the upper heat dissipation vents and the lower heat dissipation vents.

14. An energy storage management control system according to claim 11, The battery management measurement and control system further comprises a fire-fighting unit, the fire-fighting unit comprises a smoke sensor, the smoke sensor is connected to a fire-fighting system host located outside the housing, and the fire-fighting system host located outside the housing is connected to the industrial control integrated unit, characterized in that it is an energy storage management and control system.

15. An energy storage management control system according to claim 10, The energy storage management control system is characterized in that the electrical components include a manual hard emergency stop unit, the manual hard emergency stop unit includes a delay relay, the delay relay is provided in the low-voltage communication control area and is communicated to the high-voltage DC load switch, and when the manual hard emergency stop unit is controlled manually, the delay relay controls the disconnection of the high-voltage DC load switch.

16. An energy storage management control system according to claim 10, The energy storage management control system is characterized in that the communication control electrical component further comprises an uninterruptible power supply system, the uninterruptible power supply system comprising a main power architecture and a backup power architecture for responding when the main power architecture is not operating.

17. An energy storage management control system according to claim 16, The aforementioned uninterruptible power supply system comprises a first uninterruptible power supply unit, a second uninterruptible power supply unit, a redundant module, and a host system module. The first and second uninterruptible power supply units each comprise a switching power supply module, a UPS module, and a lead-acid battery module, wherein the AC input terminal of the switching power supply module is connected to the power grid system, the output terminal of the switching power supply is connected to the input terminal of the UPS module, the output terminal of the UPS module is connected to the input terminal of the lead-acid battery module, the lead-acid battery module is connected to the redundant module via the UPS module, and the output terminal of the redundant module is connected to the load of the energy storage system. An energy storage management control system characterized in that the input terminal of the aforementioned higher-level module is connected to the output terminal of the switching power supply module, the output terminal of the UPS module, and the output terminal of the redundant module.

18. An energy storage management control system according to claim 17, The switching power supply module comprises a rectifier module and a filter module, wherein the output terminal of the rectifier module is connected to the input terminal of the filter module, and the output terminal of the filter module is connected to the input terminal of the UPS module, characterized in that this is an energy storage management control system.

19. An energy storage management control system according to claim 17 or 18, The UPS module comprises a decoupling module, a charging module, a first switching element, and a dry contact module. The input terminal of the decoupling module is connected to the output terminal of the switching power supply module. The output terminal of the decoupling module is connected to the input terminal of the charging module, the first switching element, the input terminal of the dry contact module, and the input terminal of the redundant module. An energy storage management control system characterized in that the input terminal of the lead-acid battery module is connected to the output terminal of the charging module, the first switching element, and the output terminal of the dry contact module.

20. An energy storage management control system according to claim 17, The aforementioned redundant module comprises a MOS tube module and a normally closed dry contact. The input terminal of the MOS tube module is connected to the output terminal of the UPS module. The output terminal of the MOS tube module is connected to the load of the energy storage system. An energy storage management control system characterized in that the MOS tube module is connected to the first digital interface of the higher-level module via the normally closed dry contact.

21. An energy storage management control system according to claim 18, An energy storage management control system characterized in that the input terminal of the aforementioned higher-level module is connected to the output terminal of the switching power supply module, and the second digital interface of the aforementioned higher-level module is connected to the DOCK pin of the filter module.

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