Cascaded energy storage monitoring system and monitoring method, control device and storage medium

Abstract

The invention discloses a cascade energy storage monitoring system and method, a control device and a storage medium, the cascade energy storage monitoring system comprises a plurality of cabins, each cabin comprises a power control module, a state detection module, an environment regulation and control module and a power and environment monitoring module, the monitoring module is connected with the power control module through a first optical fiber, and the power control module is connected with the state detection module through a second optical fiber. The power control module is connected with the controller of each energy storage chain link through a second optical fiber, the dynamic environment monitoring module is connected with the state detection module and the environment regulation and control module, the dynamic environment monitoring module is connected with the monitoring module through a network cable, and the dynamic environment monitoring module is connected with the power control module through a fault output port. The dynamic environment monitoring module can output a fault signal to the power control module through the fault output port, the power control module can upload the fault signal to the monitoring module through the first optical fiber and control the energy storage chain link to be shut down according to the fault signal, and the design is efficient in transmission, timely in response, capable of reducing the arrangement cost and safe and stable in use.

Description

Technical Field

[0001] The present invention relates to the technical field of computer control of electric power systems, and in particular to a cascade energy storage monitoring system and monitoring method, a control device, and a storage medium. Background Art

[0002] With the rapid development of new energy, the installed capacity of new energy accounts for an increasingly larger proportion. Since new energy is an unstable energy source, energy storage devices need to be configured to achieve smooth control of renewable energy power generation, thereby reducing instantaneous power changes and reducing the impact on the power grid.

[0003] A cascade energy storage system usually includes an energy storage bridge arm module, each of which includes multiple energy storage links connected in series. Due to the large number of energy storage links, more cabins are required to place the energy storage links. Each cabin houses several energy storage links and circuit boards. A monitoring module is also provided outside the cabin. The monitoring module needs to be connected to the circuit board first, and the circuit board is then connected to each energy storage link in the cabin respectively. The monitoring module controls the orderly operation of each energy storage link through the circuit board.

[0004] However, it is found in the actual use process that the circuit board not only needs to control the orderly operation of the energy storage chain link, but also needs to detect the operating status of the power components in the cabin and the operating status information such as the parameters of the environment to upload to the monitoring module. At the same time, the circuit board also needs to control the operation of the air conditioner, heat dissipation fan and other environmental control modules in the cabin, and adjust the environmental parameters to meet the operation of the power components. The above processing causes the control module of the circuit board to have a large operating load. Existing manufacturers choose to set up two groups of control modules respectively. Both control modules are connected to the monitoring module. One control module is responsible for issuing power control instructions for controlling the operation of the energy storage chain link, and the other control module is responsible for uploading the operating status information and controlling the operation of the environmental control module. However, this structure means that the cables used for transmitting data are doubled. The control of the energy storage chain link needs to be configured with optical fiber and other cables with fast data transmission speed, which is expensive. At the same time, when a fault occurs in the cabin, the other control module also needs to promptly feedback to the monitoring module, and the monitoring module then issues a control instruction to control the energy storage chain link to shut down to prevent the situation from further deteriorating and the occurrence of dangerous conditions. Therefore, the overall layout has high requirements for the communication rate, the layout cost is expensive, and the subsequent maintenance cost is also increased. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a cascade energy storage monitoring system and monitoring method, a control device, and a storage medium, which have efficient transmission, timely response, reduced deployment cost, and safe and stable use.

[0006] According to a first aspect of the present invention, a cascade energy storage monitoring system includes at least one group of energy storage bridge arm modules and a monitoring module, wherein the energy storage bridge arm module includes a plurality of energy storage links connected in sequence, and the cascade energy storage monitoring system includes a plurality of cabins, wherein at least a plurality of energy storage links are arranged in the cabins; the cabins include: a power control module, wherein the monitoring module is connected to the power control module via a first optical fiber, wherein the power control module is connected to a controller of each energy storage link via a second optical fiber; a state detection module, which is arranged in the cabin, and is used to detect operating state information; an environmental control module, which is arranged in the cabin, and is used to adjust operating parameters of the environment; number; a dynamic environment monitoring module, which is respectively connected to the state detection module and the environmental control module, the dynamic environment monitoring module is connected to the monitoring module through a network cable, and the dynamic environment monitoring module uploads operation status information through the network cable. The dynamic environment monitoring module also includes a fault output port, and the dynamic environment monitoring module is connected to the power control module through the fault output port. The dynamic environment monitoring module can output a fault signal to the power control module through the fault output port, wherein the fault signal is used to characterize the occurrence of a fault in the operation according to the operation status information, and the power control module can upload the fault signal to the monitoring module through the first optical fiber and control the shutdown of the energy storage chain according to the fault signal.

[0007] A cascade energy storage monitoring system according to an embodiment of the present invention has at least the following beneficial effects:

[0008] In the cascaded energy storage monitoring system of the present invention, the power control module can select a first optical fiber with a relatively high cost to connect with the monitoring module, and select a second optical fiber to connect with the controller of each energy storage chain link in the cabin. The monitoring module can quickly send power control instructions to the controller of each energy storage chain link through the power control module to ensure the efficient operation of each energy storage chain link. For the operation status information in the cabin and the state control instructions for the control of the environmental control module, the response efficiency requirement is relatively low. The dynamic ring monitoring module can be connected to the monitoring module through a relatively low-cost network cable. The dynamic ring monitoring module uploads the operation status information to the monitoring module through the network cable. The monitoring module sends the state control instruction to the dynamic ring monitoring module through the network cable. When the operation status information indicates that the operation fails, a fault signal is generated. The dynamic ring monitoring module sends the fault signal to the power control module, so that the power control module promptly controls the shutdown of each energy storage chain link in the cabin. At the same time, the power control module quickly sends the fault signal to the monitoring module through the first optical fiber, and the monitoring module can also notify the energy storage chain links of other cabins to respond. The design has high transmission efficiency, timely response, reduced layout cost, and is safe and stable to use.

[0009] According to some embodiments of the present invention, the transmission speed of the first optical fiber is higher than that of the second optical fiber.

[0010] According to some embodiments of the present invention, the monitoring module includes a monitoring background, a power storage management module and a main control module. The monitoring background is respectively connected to the power storage management module and the main control module. The power storage management module is respectively connected to each of the dynamic environment monitoring modules through a network cable, and the main control module is respectively connected to each power control module through a first optical fiber.

[0011] According to some embodiments of the present invention, the status detection module includes one or more combinations of an ambient temperature detection unit, a humidity detection unit, a power storage detection unit, an energy storage temperature detection unit and a water immersion detection unit; the ambient temperature detection unit is used to detect first temperature information of the environment; the humidity detection unit is used to detect humidity information of the environment; the power storage detection unit is used to detect power information of the energy storage component in the energy storage chain link; the energy storage temperature detection unit is used to detect second temperature information of the energy storage component in the energy storage chain link; and the water immersion detection unit is used to detect water level information in the cabin.

[0012] According to some embodiments of the present invention, the environment control module includes one or a combination of a temperature modulator, a humidity modulator, a water-cooled radiator, a fan, and a fire extinguisher.

[0013] According to the monitoring method of the second aspect of the present invention, it is applied to the cascade energy storage monitoring system disclosed in any of the above embodiments, and the monitoring method includes: the dynamic ring monitoring module obtains the operating status information; when the operating status information meets the fault condition, the dynamic ring monitoring module forms a fault signal, wherein the fault condition is used to determine whether the operating fault occurs according to the operating status information; the dynamic ring monitoring module outputs the fault signal to the power control module through the fault output port; the power control module receives the fault signal, the power control module controls the energy storage chain link to shut down according to the fault signal, and the power control module uploads the fault signal to the monitoring module through the first optical fiber.

[0014] The monitoring method according to the embodiment of the present invention has at least the following beneficial effects:

[0015] The monitoring method of the present invention has efficient transmission, timely response, reduced layout cost, and is safe and stable to use.

[0016] According to some embodiments of the present invention, the monitoring method also includes: when the operating status information does not meet the fault conditions, the dynamic environment monitoring module uploads the operating status information to the monitoring module via a network cable; the monitoring module sends a status control instruction to the dynamic environment monitoring module via the network cable, and the dynamic environment monitoring module controls the operation of the environmental control module according to the status control instruction.

[0017] According to some embodiments of the present invention, the monitoring method further includes: the monitoring module sends a power control instruction to the power control module via the first optical fiber, and the power control module sends the power control instruction to the controller of each energy storage link accordingly.

[0018] According to the control device of the embodiment of the third aspect of the present invention, the control device includes a memory and a processor, the memory stores a computer program, and the processor implements the monitoring method disclosed in any of the above embodiments when executing the computer program.

[0019] According to the computer-readable storage medium of the fourth aspect of the present invention, the computer-readable storage medium stores a computer program, and is characterized in that when the computer program is executed by a processor, the monitoring method disclosed in any of the above embodiments is implemented.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a principle structure block diagram of one embodiment of the cascade energy storage monitoring system of the present invention;

[0023] Figure 2 A schematic diagram of the structure of an energy storage bridge arm module of one embodiment of the cascade energy storage monitoring system of the present invention;

[0024] Figure 3 The flowchart is one embodiment of the monitoring method of the present invention.

[0025] Reference numerals:

[0026] Energy storage bridge arm module 100; energy storage link 110; controller 111; energy storage component 112; cabin 200; monitoring module 300; monitoring background 310; power storage management module 320; main control module 330; first switch 340; second switch 350; power control module 400; dynamic environment monitoring module 500; state detection module 510; environment control module 520; first optical fiber 610; second optical fiber 620; network cable 630. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0030] like Figures 1 to 3 As shown, a cascade energy storage monitoring system according to an embodiment of the first aspect of the present invention includes at least one group of energy storage bridge arm modules 100 and a monitoring module 300, wherein the energy storage bridge arm module 100 includes a plurality of energy storage links 110 connected in sequence, and the cascade energy storage monitoring system includes a plurality of cabins 200, wherein at least a plurality of energy storage links 110 are arranged in the cabins 200.

[0031] There may be three energy storage bridge arm modules 100 , and the three energy storage bridge arm modules 100 may be connected in a delta shape or a star shape and then connected to the high voltage bus.

[0032] The AC sides of the energy storage links 110 in each group of energy storage bridge arm modules 100 are connected in series in sequence. Specifically, Figure 2 As shown, the energy storage link 110 may include four power switch tubes, an energy storage component 112 (energy storage capacitor, battery, etc.) and a controller 111. The four power switch tubes are connected to form an H-bridge conversion circuit. The energy storage component 112 is connected to the DC side of the H-bridge conversion circuit. The controller 111 is respectively connected to the controlled end of each power switch tube to control the on and off operation of each power switch tube. The controller 111 of the energy storage link 110 can be selected from a conventional integrated IC or processor with processing and control capabilities and its associated circuits.

[0033] The cabin 200 can be constructed of sheet metal parts and alloy brackets to form a relatively closed space. There are at least a plurality of energy storage links 110 in one cabin 200 .

[0034] The cabin 200 includes a power control module 400, a state detection module 510, an environmental control module 520 and a dynamic environment monitoring module 500. The monitoring module 300 is connected to the power control module 400 via a first optical fiber 610, and the power control module 400 is connected to the controller 111 of each energy storage link 110 via a second optical fiber 620. The state detection module 510 is arranged in the cabin 200, and the state detection module 510 is used to detect operating state information. The environmental control module 520 is arranged in the cabin 200, and the environmental control module 520 is used to adjust the operating parameters of the environment. The dynamic environment monitoring module 500 is respectively connected to the state detection module 510 and the environmental control module 520. The dynamic environment monitoring module 500 is connected to the monitoring module 300 via a network cable 630, and the dynamic environment monitoring module 500 uploads operation status information via the network cable 630. The dynamic environment monitoring module 500 also includes a fault output port, and the dynamic environment monitoring module 500 is connected to the power control module 400 via the fault output port. The dynamic environment monitoring module 500 can output a fault signal to the power control module 400 via the fault output port, wherein the fault signal is used to characterize the occurrence of an operation fault according to the operation status information, and the power control module 400 can upload the fault signal to the monitoring module 300 via the first optical fiber 610 and control the shutdown of the energy storage chain link 110 according to the fault signal.

[0035] Among them, the power control module 400 and the dynamic environment monitoring module 500 can be selected from conventional processors such as MCU or CPU and their auxiliary circuits. Specifically, the power control module 400 and the dynamic environment monitoring module 500 are connected through their respective SPI ports as fault output ports.

[0036] In the cascade energy storage monitoring system of the present invention, the power control module 400 can select the first optical fiber 610 with a relatively high cost to connect with the monitoring module 300, and select the second optical fiber 620 to connect with the controller 111 of each energy storage link 110 in the cabin 200. The monitoring module 300 can quickly send power control instructions to the controller 111 of each energy storage link 110 through the power control module 400 to ensure the efficient operation of each energy storage link 110, and the response efficiency requirements for the operating status information in the cabin 200 and the status control instructions for the environmental control module 520 are relatively low. The dynamic environment monitoring module 500 can be connected to the monitoring module 300 through a relatively low-cost network cable 630. 00 uploads the operating status information to the monitoring module 300 through the network cable 630, and the monitoring module 300 sends the status control instruction to the dynamic environment monitoring module 500 through the network cable 630. When the operating status information indicates that there is a fault in the operation, a fault signal is generated, and the dynamic environment monitoring module 500 sends the fault signal to the power control module 400, so that the power control module 400 can promptly control the shutdown of each energy storage link 110 in the cabin 200. At the same time, the power control module 400 quickly sends the fault signal to the monitoring module 300 through the first optical fiber 610, and the monitoring module 300 can also notify the energy storage links 110 of other cabins 200 to respond. The design has efficient transmission, timely response, reduced layout costs, and is safe and stable to use.

[0037] In some embodiments of the present invention, the transmission speed of the first optical fiber 610 is higher than that of the second optical fiber 620 .

[0038] Specifically, the first optical fiber 610 may be a high-speed optical fiber, such as a glass optical fiber, and the second optical fiber 620 may be a low-speed optical fiber, such as a plastic optical fiber.

[0039] The core and cladding of plastic optical fiber are made of plastic or polymer, usually using polymethyl methacrylate (PMMA) as the core material, while glass optical fiber uses glass as the core material. The core diameter of plastic optical fiber is larger (0.15-2 mm), while the core diameter of glass optical fiber is smaller (about 0.1 mm). Plastic optical fiber is suitable for short-distance data transmission due to its soft and unbreakable characteristics, with relatively slow transmission speed and low unit cost, while glass optical fiber has high transmission speed and is suitable for long-distance data transmission, but the cost is higher.

[0040] The distance between the power control module 400 and the controller 111 of each energy storage link 110 in the cabin 200 is short, so the second optical fiber 620 with lower cost can be selected, while the monitoring module 300 and the power control module 400 located outside the cabin 200 are far away, so the first optical fiber 610 with faster transmission speed can be selected.

[0041] The dynamic environment monitoring module 500 can be connected to the power control module 400 via an optical fiber to increase the transmission rate of the fault signal, or it can be connected to the power control module 400 via a network cable 630. The dynamic environment monitoring module 500 uses a chip without optical signal processing capability, which reduces the cost relatively.

[0042] In some embodiments of the present invention, the monitoring module 300 includes a monitoring background 310, a power storage management module 320 and a main control module 330. The monitoring background 310 is respectively connected to the power storage management module 320 and the main control module 330. The power storage management module 320 is respectively connected to each of the dynamic environment monitoring modules 500 through a network cable 630. The main control module 330 is respectively connected to each of the power control modules 400 through a first optical fiber 610.

[0043] Among them, the monitoring background 310 can be the energy management background (EMS) of the power grid, and the power storage management module 320 can also be selected from conventional processors such as MCU or CPU and their associated circuits. The power storage management module 320, the dynamic environment control module and the status detection module 510 can construct a BMS multi-level architecture.

[0044] The main control module 330 can be selected from conventional processors such as MCU or CPU and their associated circuits. The main control module 330 is used to connect to the power control modules 400 in each cabin 200. After the monitoring background 310 sends the power control strategy to the main control module 330, the main control module 330 generates control instructions for controlling each energy storage link 110 and distributes them to each power control module 400 accordingly.

[0045] The monitoring background 310 and the power storage management module 320 can be connected via a network cable 630. Specifically, a first switch 340 can also be provided. The first switch 340 is used to realize data exchange. The first switch 340 can be provided with multiple data transmission ports. The monitoring background can be communicated with each power storage management module 320 through the first switch 340. Similarly, the monitoring background 310 and the main control module 330 can be connected via a network cable 630. Specifically, a second switch 350 can also be provided. The second switch 350 is used to realize data exchange. The second switch 350 can be provided with multiple data transmission ports. The monitoring background can be communicated with each main control module 330 through the second switch 350.

[0046] In some embodiments of the present invention, the state detection module 510 includes one or more combinations of an ambient temperature detection unit, a humidity detection unit, a power storage detection unit, a storage temperature detection unit, and a water immersion detection unit;

[0047] The environment temperature detection unit is used to detect first temperature information of the environment. The environment temperature detection unit may use a conventional temperature sensor or an electronic thermometer. The first temperature information represents the environment temperature in the cabin 200.

[0048] The humidity detection unit is used to detect humidity information of the environment, and the humidity detection unit can adopt a conventional humidity sensor;

[0049] The power storage detection unit is used to detect the power information of the power storage element in the energy storage link 110. The power storage detection unit can use a coulomb meter or a negative voltage sampling circuit. The power storage detection unit is connected to the energy storage element 112 to detect the power information.

[0050] The energy storage temperature detection unit is used to detect the second temperature information of the electric storage component in the energy storage link 110. The energy storage temperature detection unit can adopt a thermocouple or a thermistor. The energy storage temperature detection unit is arranged at a position close to or in contact with the electric storage component, so as to detect the temperature of the electric storage component during operation;

[0051] The water immersion detection unit is used to detect the water level information in the cabin 200. Since a water-cooling heat dissipation pipe is provided in the cabin 200, there is a risk of water leakage. The water immersion detection unit can be an electrode detection circuit, a capacitive water level detector, a floating water level detector, etc. installed on the ground of the cabin 200.

[0052] In some embodiments of the present invention, the environment control module 520 includes one or a combination of a temperature modulator, a humidity modulator, a water-cooled radiator, a fan, and a fire extinguisher.

[0053] The temperature modulator may be an air conditioner or a semiconductor heat exchanger installed in the cabin 200, the humidity modulator may be a humidifier or a dehumidifier installed in the cabin 200, and the water-cooled radiator includes a water-cooled pipe that contacts and dissipates heat from each power link in the cabin 200. Under normal operation, the state control module controls the temperature modulator, humidity modulator, water-cooled radiator, fan, etc. to adjust the environmental parameters in the cabin 200 so that the power links can operate stably. When the operating status data shows that there is a fire, thick smoke, or severe overpressure or overcurrent in the cabin 200, the state control module triggers the fire extinguisher to extinguish the fire and simultaneously generates a fault signal to provide to the power control module 400.

[0054] The monitoring method according to the second aspect of the present invention is applied to the cascade energy storage monitoring system disclosed in any of the above embodiments, such as Figure 3 As shown, the monitoring method includes:

[0055] S710, the dynamic environment monitoring module obtains the operation status information;

[0056] S720, when the operation status information meets the fault condition, the dynamic environment monitoring module generates a fault signal, wherein the fault condition is used to determine whether an operation fault occurs according to the operation status information;

[0057] S730, the dynamic environment monitoring module outputs the fault signal to the power control module through the fault output port;

[0058] S740: The power control module receives the fault signal, controls the energy storage link to shut down according to the fault signal, and uploads the fault signal to the monitoring module through the first optical fiber.

[0059] The monitoring method of the present invention has efficient transmission, timely response, reduced layout cost, and is safe and stable to use.

[0060] In some embodiments of the present invention, the monitoring method further comprises:

[0061] When the operation status information does not meet the fault condition, the dynamic environment monitoring module uploads the operation status information to the monitoring module through the network cable;

[0062] The monitoring module sends status control instructions to the dynamic environment monitoring module through the network cable, and the dynamic environment monitoring module controls the operation of the environmental control module according to the status control instructions.

[0063] In some embodiments of the present invention, the monitoring method further comprises:

[0064] The monitoring module sends a power control instruction to the power control module through the first optical fiber, and the power control module sends the power control instruction to the controller of each energy storage link accordingly.

[0065] The monitoring module can quickly send power control instructions to the power control modules in each cabin through the first optical fiber, and the power control module then sends the power control instructions to the controllers of each energy storage chain link through the second optical fiber. As for the operating status information in the cabin and the status control instructions for controlling the environmental control module, the dynamic environment monitoring module is connected to the monitoring module through a relatively low-cost network cable, and the dynamic environment monitoring module uploads the operating status information to the monitoring module through the network cable. The monitoring module sends the status control instructions to the dynamic environment monitoring module through the network cable. When the operating status information indicates that an operation failure has occurred, a fault signal is generated, and the dynamic environment monitoring module sends the fault signal to the power control module, so that the power control module can promptly control the shutdown of each energy storage chain link in the cabin. At the same time, the power control module quickly sends the fault signal to the monitoring module through the first optical fiber, and the monitoring module can also notify the energy storage chain links of other cabins to respond.

[0066] According to the control device of the embodiment of the third aspect of the present invention, the control device includes a memory and a processor, the memory stores a computer program, and the processor implements the monitoring method disclosed in any of the above embodiments when executing the computer program.

[0067] The control device can be any intelligent terminal including a central computer, a remote device terminal computer, etc. Specifically, the control device includes:

[0068] The processor may be implemented by a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application;

[0069] The memory can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory can store an operating system and other application programs. When the technical solution provided in the embodiments of this specification is implemented by software or firmware, the relevant program code is stored in the memory, and the processor is called to execute the monitoring method of the embodiments of this application;

[0070] Input / output interface, used to realize information input and output, including optical fiber port, network port, RS485 port, CAN port, DO / DI port, SPI port, etc.;

[0071] The processor, memory, and input / output interface are connected to each other through a bus within the device.

[0072] According to the computer-readable storage medium of the fourth aspect of the present invention, the computer-readable storage medium stores a computer program, and is characterized in that when the computer program is executed by a processor, the monitoring method disclosed in any of the above embodiments is implemented.

[0073] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely disposed relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0074] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0075] Those skilled in the art will appreciate that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0076] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0077] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0078] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0079] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A cascade energy storage monitoring system, comprising at least one set of energy storage bridge arm modules and a monitoring module, wherein the energy storage bridge arm modules comprise a plurality of sequentially connected energy storage links, characterized in that: The cascade energy storage monitoring system includes a plurality of cabins, at least a plurality of energy storage links are arranged in the cabins; the cabins include: A power control module, wherein the monitoring module is connected to the power control module via a first optical fiber, and the power control module is connected to the controllers of each energy storage link via a second optical fiber; A status detection module, wherein the status detection module is used to detect operation status information; An environmental control module, the environmental control module is used to adjust the operating parameters of the environment; a dynamic environment monitoring module, respectively connected to the state detection module and the environmental control module, the dynamic environment monitoring module is connected to the monitoring module through a network cable, the dynamic environment monitoring module uploads operating status information through the network cable, the dynamic environment monitoring module also includes a fault output port, the dynamic environment monitoring module is connected to the power control module through the fault output port, the dynamic environment monitoring module can output a fault signal to the power control module through the fault output port, wherein the fault signal is used to characterize the occurrence of an operating fault according to the operating status information, and the power control module can upload the fault signal to the monitoring module through the first optical fiber and control the shutdown of the energy storage chain according to the fault signal.

2. A cascade energy storage monitoring system according to claim 1, characterized in that: The transmission speed of the first optical fiber is higher than that of the second optical fiber.

3. A cascade energy storage monitoring system according to claim 1, characterized in that: The monitoring module includes a monitoring background, a power storage management module and a main control module. The monitoring background is respectively connected to the power storage management module and the main control module. The power storage management module is respectively connected to each of the dynamic environment monitoring modules through a network cable, and the main control module is respectively connected to each of the power control modules through a first optical fiber.

4. A cascade energy storage monitoring system according to claim 1, characterized in that: The state detection module includes one or more combinations of an ambient temperature detection unit, a humidity detection unit, a power storage detection unit, a storage temperature detection unit, and a water immersion detection unit; The environmental temperature detection unit is used to detect first temperature information of the environment; The humidity detection unit is used to detect humidity information of the environment; The power storage detection unit is used to detect the power information of the power storage components in the energy storage chain link; The energy storage temperature detection unit is used to detect the second temperature information of the energy storage component in the energy storage link; The water immersion detection unit is used to detect water level information in the cabin.

5. The cascade energy storage monitoring system according to claim 1, characterized in that: The environmental control module includes one or a combination of a temperature modulator, a humidity modulator, a water-cooled radiator, a fan, and a fire extinguisher.

6. A monitoring method, characterized in that: Applied to the cascade energy storage monitoring system according to any one of claims 1 to 5, the monitoring method comprises: The dynamic environment monitoring module obtains the operation status information; When the operation status information meets the fault condition, the dynamic environment monitoring module generates a fault signal, wherein the fault condition is used to determine whether an operation fault occurs according to the operation status information; The dynamic environment monitoring module outputs the fault signal to the power control module through the fault output port; The power control module receives the fault signal, controls the energy storage chain link to shut down according to the fault signal, and uploads the fault signal to the monitoring module through the first optical fiber.

7. A monitoring method according to claim 6, characterized in that: The monitoring method further comprises: When the operation status information does not meet the fault condition, the dynamic environment monitoring module uploads the operation status information to the monitoring module through the network cable; The monitoring module sends status control instructions to the dynamic environment monitoring module through the network cable, and the dynamic environment monitoring module controls the operation of the environmental control module according to the status control instructions.

8. A monitoring method according to claim 6, characterized in that: The monitoring method further comprises: The monitoring module sends a power control instruction to the power control module through the first optical fiber, and the power control module sends the power control instruction to the controller of each energy storage link accordingly.

9. A control device, characterized in that: include: one or more memories; One or more processors, used to execute one or more computer programs stored in the one or more memories, and also used to execute the monitoring method as described in any one of claims 6 to 8.

10. A computer-readable storage medium, characterized in that: The method comprises instructions which, when executed on a computer, cause the computer to execute the monitoring method as claimed in any one of claims 6 to 8.

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