A liquid cooling detection system for all-vanadium liquid flow battery energy storage power station

Abstract

The present invention provides a liquid cooling detection system for an all-vanadium liquid flow battery energy storage power station, the liquid cooling detection system comprising a battery status detection module, an energy storage power station evaluation module, a fault diagnosis module, a self-test module, and a control module; the present invention realizes comprehensive detection and evaluation of the system through diagnosis of batteries, power stations and systems, and improves the reliability of system evaluation and the accuracy of abnormal judgment; the present invention also specifically proposes a method with simple calculation method for batteries, power stations and systems, the above method is simple in calculation, has low pressure on the system, does not increase costs, and makes the evaluation of the system more scientific and reasonable.

Description

Technical Field

[0001] The invention relates to a liquid cooling detection system for an all-vanadium liquid flow battery energy storage power station. Background Art

[0002] The all-vanadium liquid flow battery energy storage power station is a new energy storage technology with high energy density and power density, long cycle life and good safety performance. In the operation of the all-vanadium liquid flow battery energy storage power station, the liquid cooling detection system is an important component, which is mainly used to monitor the operating status of the battery, timely detect and prevent potential faults, and ensure the safe and stable operation of the power station.

[0003] The liquid cooling detection system mainly includes the following aspects:

[0004] 1. Battery status monitoring: By real-time monitoring of battery voltage, current, temperature and other parameters, the battery charging and discharging status can be understood, the battery capacity and health can be judged, and data support can be provided for power station management.

[0005] 2. Fault diagnosis: By analyzing the battery's operating data, abnormal battery conditions such as overcharging, over-discharging, abnormal temperature, etc. are discovered, and alarms are issued in time to prevent potential faults.

[0006] 3. Battery performance evaluation: By comparing the operating data of different batteries, the performance of the batteries can be evaluated to provide a reference for battery selection and replacement.

[0007] 4. Power station operation optimization: According to the battery operation data, optimize the power station operation strategy to improve the operation efficiency and safety of the power station.

[0008] The realization of the liquid cooling detection system of the all-vanadium liquid flow battery energy storage power station requires advanced sensor technology, data processing technology and artificial intelligence algorithms. Combining these technologies with the actual needs of the power station can effectively improve the operating efficiency and safety of the power station. At the same time, the establishment and operation of the liquid cooling detection system also needs to fully consider the cost and feasibility of the power station to achieve economical and efficient operation and management.

[0009] However, through existing technical research, it is found that the parameters required by the current liquid cooling detection system are complex and repeatedly obtained and utilized, and the evaluation method is complex, which greatly increases the pressure on the system. In view of this, it is necessary to provide a detection system that can be comprehensively evaluated and has simple calculations. Summary of the invention

[0010] In order to solve the problems existing in the prior art, the present invention provides a liquid cooling detection system for an all-vanadium liquid flow battery energy storage power station, wherein the liquid cooling detection system comprises a battery status detection module, an energy storage power station evaluation module, a fault diagnosis module, a self-test module, and a control module;

[0011] The battery status detection module is used to detect the battery status so as to determine the health status of the battery. 电池 ;

[0012] The energy storage power station evaluation module is used to evaluate the stability of the energy storage power station operation. 电站 ;

[0013] The self-check module is used to perform self-check on the operation status of the liquid cooling detection system to obtain the reliability of the operation of the liquid cooling detection system. 系统 ;

[0014] The fault diagnosis module is used to determine the battery health status based on the battery 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 Conduct fault diagnosis and provide feedback on the diagnosis results;

[0015] The control module is used to determine a maintenance strategy for the liquid cooling detection system according to the diagnosis result.

[0016] A further solution includes: the battery status detection module includes: a temperature sensor, a voltage sensor, and a liquid level sensor and a battery information processing module;

[0017] The temperature sensor is used to detect the maximum temperature T of the battery. max ;

[0018] The first voltage sensor is used to detect the minimum voltage U of the battery. min ;

[0019] The liquid level sensor is used to monitor the liquid level H of the electrolyte in the battery storage tank;

[0020] The battery information processing module determines the battery health status W based on the maximum temperature T, the minimum voltage U, and the liquid level H. 电池 .

[0021] A further solution includes: the battery information processing module based on the maximum temperature T max , minimum voltage U min , liquid level H determines the battery health status W 电池 Including: Get the normal temperature T of the battery for normal operation 正常 , Normal voltage U 正常 And normal liquid level H 正常 ; In order to determine the monitoring status of the battery W 电池 , wherein the calculation method is as follows:

[0022]

[0023] A further solution includes: the energy storage power station assessment module includes: a second voltage sensor, a timing sensor;

[0024] The second voltage sensor is used to detect the preset time period t 预设 The maximum voltage U max and minimum voltage U 低 ;

[0025] The timing sensor is used to determine the preset time period t 预设 The operating time of the internal energy storage power station is t;

[0026] Based on the maximum voltage U max and minimum voltage U 低 and operation time to evaluate the stability of the power station W 电站 .

[0027] A further solution includes: the maximum voltage U max and minimum voltage U 低 And the operation time of the energy storage power station to evaluate the stability of the power station W 电站 Specifically include: obtaining the output voltage U when the power station is working normally 输出 , the stability of the power station W is determined by 电站 :

[0028]

[0029] A further solution includes: the self-check module is used to self-check the operating status of the liquid cooling detection system, and obtaining the reliability of the operation of the liquid cooling detection system specifically includes: detecting the signal strength RSSI and the fault tolerance rate C of the communication link between various sensors, so as to determine the reliability W of the operation of the liquid cooling detection system based on the stability of the communication link 系统 .

[0030] A further solution includes: detecting the signal strength RSSI and fault tolerance C of the communication link between various sensors, so as to determine the reliability W of the liquid cooling detection system based on the stability of the communication link. 系统 Specifically include: obtaining the signal strength RSSI of the i-th link i and fault tolerance C i , the reliability of the liquid cooling detection system is determined by the following method W 系统 ;

[0031]

[0032] Where n is the total number of links; RSSI avg is the average signal strength of n links; C 额定 is the expected fault tolerance.

[0033] A further solution includes: the fault diagnosis module is used to determine the health status of the battery based on the battery 电池 , Stability of energy storage power station operation 电站 And liquid cooling detection system W 系统 The reliability of operation is improved by fault diagnosis, and the diagnostic results are fed back, including:

[0034] According to the health status of the battery W 电池 , Stability of energy storage power station operation 电站 And liquid cooling detection system W 系统 Determine a weight W, and determine a diagnosis result according to the weight W; wherein,

[0035]

[0036] Among them, W 电池-avg W is the weight of the battery during normal operation; 电站-avg It is the weight when the power station is working normally.

[0037] A further solution includes: the liquid cooling detection system also includes an information verification module, the information verification module is located in the server, and is used to verify the data from the control module and each sensor, wherein the verification of the data from the control module and each sensor includes based on the health status of the battery W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 At least one of the above verifies the data.

[0038] A further solution includes: the verification module does not use the received battery health status W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 to verify.

[0039] The beneficial effect of the present invention is that the present invention provides a liquid cooling detection system for an all-vanadium liquid flow battery energy storage power station, the liquid cooling detection system comprises a battery status detection module, an energy storage power station evaluation module, a fault diagnosis module, a self-test module, and a control module; the battery status detection module is used to detect the battery status so as to determine the health status of the battery. 电池 The energy storage power station evaluation module is used to evaluate the stability of the energy storage power station operation. 电站 The self-check module is used to self-check the operating status of the liquid cooling detection system to obtain the reliability of the liquid cooling detection system operation W 系统 The fault diagnosis module is used based on the health status of the battery 电池 , Stability of energy storage power station operation 电站And liquid cooling detection system W 系统 The reliability of operation is diagnosed by fault diagnosis, and the diagnosis result is fed back; the control module is used to determine the maintenance strategy of the liquid cooling detection system according to the diagnosis result. The present invention realizes comprehensive detection and evaluation of the system through diagnosis of batteries, power stations and systems, improves the reliability of system evaluation and the accuracy of abnormal judgment. The present invention also proposes a method with simple calculation method for batteries, power stations and systems. The above method is simple to calculate, has little pressure on the system, and does not increase the cost, so that the evaluation of the system is more scientific and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] Figure 1 The structure of the preferred embodiment of the present invention is shown in FIG. Figure 1 ;

[0042] Figure 2 The structure of the preferred embodiment of the present invention is shown in FIG. Figure 2 ;

[0043] Figure 3 It is an information verification flow chart of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0045] In order to solve the problems existing in the prior art, the present invention provides a liquid cooling detection system for an all-vanadium liquid flow battery energy storage power station, such as Figure 1 As shown, the liquid cooling detection system includes a battery status detection module, an energy storage power station evaluation module, a fault diagnosis module, a self-test module, and a control module;

[0046] The battery status detection module is used to detect the battery status so as to determine the health status of the battery. 电池 ;

[0047] The energy storage power station evaluation module is used to evaluate the stability of the energy storage power station operation. 电站 ;

[0048] The self-check module is used to perform self-check on the operation status of the liquid cooling detection system to obtain the reliability of the operation of the liquid cooling detection system. 系统 ;

[0049] The fault diagnosis module is used to determine the battery health status based on the battery 电池 , Stability of energy storage power station operation 电站And the reliability of the liquid cooling detection system operation 系统 Conduct fault diagnosis and provide feedback on the diagnosis results;

[0050] The control module is used to determine a maintenance strategy for the liquid cooling detection system according to the diagnosis result.

[0051] The present invention comprehensively considers the battery, power station and system operation during system evaluation to solve the problem of inaccurate single parameter information. The comprehensive evaluation of the battery, power station and system operation can significantly improve the reliability of the system's comprehensive capability evaluation so that maintenance can be performed accordingly, which is beneficial to the operating life and safety of the system and power station.

[0052] Preferably, the battery status detection module includes: a temperature sensor, a voltage sensor, a liquid level sensor and a battery information processing module;

[0053] The temperature sensor is used to detect the maximum temperature T of the battery. max ;

[0054] The first voltage sensor is used to detect the minimum voltage U of the battery. min ;

[0055] The liquid level sensor is used to monitor the liquid level H of the electrolyte in the battery storage tank;

[0056] The battery information processing module determines the battery health state Wbattery based on the maximum temperature T, the minimum voltage U, and the liquid level H.

[0057] All-vanadium liquid flow batteries are different from conventional lithium batteries, lead-acid batteries, etc. In the liquid cooling detection system of all-vanadium liquid flow battery energy storage power stations, sensor technology plays a vital role. Sensors are usually used to monitor and measure key parameters of batteries within a preset time period, such as voltage, current, temperature, liquid level, etc. These data are crucial for evaluating the health and performance of the battery. In order to comprehensively evaluate the stability of battery operation, the present invention selects temperature, voltage and liquid level for evaluation to determine the health status of the battery.

[0058] Preferably, the battery information processing module is based on the maximum temperature T max , minimum voltage U min , liquid level H determines the battery health status W 电池 Including: Get the normal temperature T of the battery for normal operation 正常 , Normal voltage U 正常 And normal liquid level H 正常; In order to determine the monitoring status of the battery W battery, wherein the minimum voltage Umin is not equal to 0. When it is equal to 0, an abnormal error is directly reported. Generally speaking, the smaller the minimum voltage Umin is, the greater the deviation from the normal value and the worse the battery state is; the liquid level H is also not equal to 0. When the liquid level H is detected to be equal to 0, an error is directly reported; generally speaking, the smaller the liquid level H is, the worse the state is.

[0059] The calculation method is as follows:

[0060]

[0061] W calculated in the above way 电池 The larger the value, the worse the state. According to the above method, the state of the battery can be determined intuitively, which provides a scientific and reasonable basis for the evaluation of the battery state.

[0062] In order to achieve accurate assessment of the health status of the all-vanadium liquid flow battery, the battery temperature, voltage and liquid level are detected in real time, and the maximum temperature, minimum voltage, and liquid level within a preset time period are obtained. Then, they are compared with the values ​​under normal conditions to obtain the comprehensive weight of the battery health status, thereby measuring the battery health status.

[0063] In general, the battery's temperature, voltage and liquid level all have a normal allowable range of variation. When at least one of the maximum temperature, minimum voltage, and liquid level exceeds the normal range, the abnormal information is directly fed back to the control module, so that the abnormal information is fed back to the server via the control module to activate the emergency warning mode; when the maximum temperature, minimum voltage, and liquid level do not exceed the normal range, the above-mentioned calculation method is used to determine the monitoring status of the battery, among which the setting method that the battery's temperature, voltage and liquid level all have a normal allowable range of variation is set according to actual needs and will not be repeated here.

[0064] Preferably, the energy storage power station assessment module includes: a second voltage sensor, a timing sensor;

[0065] The second voltage sensor is used to detect the preset time period t 预设 The maximum voltage U max and minimum voltage U 低 ;

[0066] The timing sensor is used to determine the preset time period t 预设 The operating time t of the internal energy storage power station, wherein the preset time period can be set according to actual needs. For different power stations, the preset time periods can be the same or different, thereby improving the adaptability of different power stations.

[0067] Based on the maximum voltage U maxand minimum voltage U 低 And the operation time of the energy storage power station to evaluate the stability of the power station W 电站 .

[0068] Wherein, the maximum voltage U max and minimum voltage U 低 And the operation time of the energy storage power station to evaluate the stability of the power station W 电站 Specifically include: obtaining the output voltage U when the power station is working normally 输出 , the stability of the power station W is determined by 电站 :

[0069]

[0070] W calculated according to the above method 电站 The larger the value, the worse the state. This provides a reliable basis for the stability of power station output, and the calculation method is simple, without the need for complex formulas, to evaluate stability.

[0071] The energy storage power station provides electricity to the outside, and the stability of the output voltage can reflect the performance of the power station. Moreover, only the voltage parameter is used, which makes data processing convenient. Moreover, the voltage is a parameter that needs to be detected on a daily basis, so there is no need to add new detection circuits or sensors, which can achieve function detection without increasing costs. The operating time can be fed back to prevent excessive charging and discharging. When evaluating the stability of the power station, the present invention selects parameters that are simple to operate and can intuitively reflect the status of the power station. Without increasing the system cost or system pressure, effective parameters are obtained to evaluate the system stability. The solution is simple and easy to operate.

[0072] In a preferred embodiment, the self-check module is used to perform self-check on the operation status of the liquid cooling detection system, and obtaining the reliability of the operation of the liquid cooling detection system specifically includes: detecting the signal strength RSSI and the fault tolerance C of the communication link between various sensors, so as to determine the reliability W of the operation of the liquid cooling detection system based on the stability of the communication link. 系统 .

[0073] The signal strength RSSI and fault tolerance rate C of the communication link between various sensors are detected to evaluate the link stability, wherein the fault tolerance rate C can be expressed by the correct rate of transmitted data, wherein the reliability W of the liquid cooling detection system operation is determined based on the stability of the communication link 系统 Specifically, it includes: obtaining the signal strength RSSIi and fault tolerance Ci of the i-th link, and determining the reliability W of the liquid cooling detection system operation in the following way 系统 ;

[0074]

[0075] Where n is the total number of links; RSSI avg is the average signal strength of n links; C 额定 is the expected fault tolerance. The reliability W of the liquid cooling detection system is obtained by the above method. 系统 The larger the value, the stronger the reliability of the link and the better the reliability of the system.

[0076] Since the battery monitoring status and power station stability have already selected parameters such as time, temperature, and voltage, in order to reduce the use of parameters and reduce system complexity, when evaluating system reliability, only signal strength and fault tolerance are selected. This can ensure the reliability of data transmission and avoid repetitive parameter calculations, which can significantly reduce the pressure on the system.

[0077] In a preferred embodiment, the fault diagnosis module is used to determine the battery's health status based on the battery's 电池 , Stability of energy storage power station operation 电站 And liquid cooling detection system W 系统 The reliability of operation is improved by fault diagnosis, and the diagnostic results are fed back, including:

[0078] According to the health status of the battery W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system operation 系统 Determine a weight W, and determine a diagnosis result according to the weight W; wherein,

[0079]

[0080] Among them, W 电池-avg The weight of the battery during normal operation, preferably W 电池-avg The value can be 0.7; W 电站-avg is the weight of the power station when it is working normally, preferably, W 电站-avg The value of is 0.5.

[0081] The comprehensive weight of the entire system can be obtained in the above manner. The larger the value, the worse the state of the entire system. Each power station can define the alarm threshold by itself to meet the safety needs of different systems.

[0082] The present invention measures the health status of the battery, the stability of the battery and the operation of the energy storage power station. 电站 And liquid cooling detection system W 系统 Comprehensive consideration can effectively determine the status of the entire system and facilitate maintenance personnel to determine maintenance strategies in a timely manner. It provides a basis for abnormal judgment in a quantitative form, making the system evaluation more scientific and reasonable.

[0083] In a preferred embodiment, when the liquid cooling detection system includes a server, Figure 2 As shown, the liquid cooling detection system also includes an information verification module, which is located in the server and is used to verify the data from the control module and each sensor, wherein the verification of the data from the control module and each sensor includes verifying the health status of the battery based on the battery 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 At least one of the above verifies the data.

[0084] In a preferred embodiment, the verification module does not use the received battery health status W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 to verify.

[0085] like Figure 3 As shown, the control module sends feedback data from various sensors, as well as the health status of the battery W and the stability of the operation of the energy storage power station W 电站 And the reliability of the liquid cooling detection system W 系统 ; Select the health status of the battery W and the stability of the operation of the battery and energy storage power station W 电站 And the reliability of the liquid cooling detection system W 系统 One of the data is used as the information header, and the other data is integrated together as a data packet and sent;

[0086] After receiving the above data, the server recalculates the health status of the battery W and the stability of the operation of the battery and energy storage power station W 电站 And the reliability of the liquid cooling detection system W 系统 , and then compare them with the information header respectively. When the battery health status W is the battery, the stability of the energy storage power station operation W is 电站 And the reliability of the liquid cooling detection system W 系统 When one of the comparisons is consistent, the information verification is passed, and the server calculates the weight W again. When it is consistent with the received weight W, the received information is comprehensively analyzed to determine the maintenance strategy. The server feeds back the maintenance strategy to the control module, and the control module performs system maintenance according to the determined maintenance strategy. In the above two comparison processes, when any one of the comparisons is inconsistent, the information verification module feeds back inconsistent information to the control module so that the control module can re-initiate the verification process.

[0087] In a preferred embodiment, when the liquid cooling detection system includes a remote server, the control module is used to determine the maintenance strategy of the liquid cooling detection system according to the diagnostic result, including: a maintenance strategy verification step, specifically including: after the control module is used to determine the maintenance strategy of the liquid cooling detection system according to the diagnostic result, a verification message is sent to the server, wherein the verification message content includes a maintenance strategy identifier, and the message header includes the health status of the battery W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 at least one of; when the server receives the verification message, sends a source information request to the control module, so that the control module sends the original data detected by each sensor according to the source information request; the server recalculates the health status of the battery based on the original data W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 , and then compare the above three values ​​with the header of the verification message one by one. When the content of the header matches the battery health status W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 When at least one of them is consistent, the verification is passed; the server calculates the system weight W according to the above original data, and determines the maintenance strategy according to the weight W. When the identifier of the maintenance strategy generated by the server is consistent with the identifier in the verification message, a maintenance strategy permission command is sent to the control module, so that the control module promotes the execution of the maintenance strategy according to the maintenance strategy permission command; wherein, when the identifiers are inconsistent, a maintenance strategy abnormality identifier is sent to the control module, so that the control module regenerates the maintenance strategy for verification.

[0088] The present invention provides two methods for determining maintenance strategies. The first method is that a server in the system determines a maintenance strategy based on data detected by a control module and a sensor. The second method is that the control module generates a maintenance strategy and submits it to the server for verification. The above two different methods can be applied to scenarios with different security levels according to actual needs, that is, multiple security thresholds are set, such as a first security threshold and a second security threshold, and the first security threshold is less than the second security threshold. When the weight W is less than the first safety threshold, no maintenance is required. When the weight W is not less than the first safety threshold and less than the second safety threshold, the first method is used. When the weight W is greater than or equal to the second safety threshold, the second method is used. This can improve the security of the maintenance strategy and further improve the maintenance efficiency of the system.

[0089] All kinds of thresholds involved in the present invention can be set according to actual scene requirements, and the specific value setting method will not be repeated here.

[0090] The solution provided by the present invention not only provides a scientific and computationally simple system evaluation method, but also eliminates the need for parameter reuse, thereby reducing the frequency of interaction between modules. At the same time, the present invention further increases the determination and verification of maintenance strategies, and can significantly improve the reliability and accuracy of maintenance strategies, whether it is the verification of various types of data or the verification of maintenance strategies.

[0091] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A liquid cooling detection system for an all-vanadium liquid flow battery energy storage power station, characterized in that: The liquid cooling detection system includes a battery status detection module, an energy storage power station evaluation module, a fault diagnosis module, a self-test module, and a control module; The battery status detection module is used to detect the battery status so as to determine the health status of the battery. 电池 ; The energy storage power station evaluation module is used to evaluate the stability of the energy storage power station operation. 电站 ; The self-check module is used to perform self-check on the operation status of the liquid cooling detection system to obtain the reliability of the operation of the liquid cooling detection system. 系统 ; The fault diagnosis module is used to determine the battery health status based on the battery 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system operation 系统 Conduct fault diagnosis and provide feedback on the diagnosis results; The control module is used to determine a maintenance strategy for the liquid cooling detection system according to the diagnosis result; The battery status detection module includes: a temperature sensor, a voltage sensor, a liquid level sensor and a battery information processing module; The temperature sensor is used to detect the maximum temperature T of the battery. max ; The first voltage sensor is used to detect the minimum voltage U of the battery. min ; The liquid level sensor is used to monitor the liquid level H of the electrolyte in the battery storage tank; The battery information processing module is based on the maximum temperature T max , minimum voltage U min , liquid level H determines the battery health status W 电池 .

2. The energy storage power station liquid cooling detection system according to claim 1, characterized in that: The battery information processing module is based on the maximum temperature T max , minimum voltage U min , liquid level H determines the battery health status W 电池 Including: Get the normal temperature T of the battery for normal operation 正常 , Normal voltage U 正常 And normal liquid level H 正常 ; In order to determine the monitoring status of the battery W 电池 , wherein the calculation method is as follows:

3. The energy storage power station liquid cooling detection system according to claim 1, characterized in that: The energy storage power station assessment module includes: a second voltage sensor, a timing sensor; The second voltage sensor is used to detect the preset time period t 预设 The maximum voltage U max and minimum voltage U 低 ; The timing sensor is used to determine the preset time period t 预设 The operating time of the internal energy storage power station is t; Based on the maximum voltage U max and minimum voltage U 低 and operation time to evaluate the stability of the power station W 电站 .

4. The energy storage power station liquid cooling detection system according to claim 3 is characterized in that: The maximum voltage U max and minimum voltage U 低 And the operation time of the energy storage power station to evaluate the stability of the power station W 电站 Specifically include: obtaining the output voltage U when the power station is working normally 输出 , the stability of the power station W is determined by 电站 :

5. The energy storage power station liquid cooling detection system according to claim 1, characterized in that: The self-check module is used to perform self-check on the operation status of the liquid cooling detection system. The reliability of the operation of the liquid cooling detection system is obtained by: detecting the signal strength RSSI and the fault tolerance C of the communication link between various sensors, so as to determine the reliability W of the operation of the liquid cooling detection system based on the stability of the communication link. 系统 .

6. The energy storage power station liquid cooling detection system according to claim 5, characterized in that: The signal strength RSSI and fault tolerance C of the communication link between various sensors are detected so as to determine the reliability W of the liquid cooling detection system based on the stability of the communication link. 系统 Specifically include: obtaining the signal strength RSSI of the i-th link i and fault tolerance C i , the reliability of the liquid cooling detection system is determined by the following method W 系统 ; Where n is the total number of links; RSSI avg is the average signal strength of n links; C 额定 is the expected fault tolerance.

7. The energy storage power station liquid cooling detection system according to claim 1, characterized in that: The fault diagnosis module is used to determine the battery health status based on the battery 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 Perform fault diagnosis and feedback the diagnosis results, including: According to the health status of the battery W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 Determine a weight W, and determine a diagnosis result according to the weight W; wherein, Among them, W 电池-avg W is the weight of the battery during normal operation; 电站-avg It is the weight when the power station is working normally.

8. The energy storage power station liquid cooling detection system according to any one of claims 1 to 7, characterized in that: The liquid cooling detection system also includes an information verification module, which is located in the server and is used to verify the data from the control module and each sensor, wherein the verification of the data from the control module and each sensor includes verifying the health status of the battery based on the battery status. 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 At least one of the above verifies the data.

9. The energy storage power station liquid cooling detection system according to claim 8, characterized in that: The verification module does not use the received battery health status W 电池 , Stability of energy storage power station operation 电站 And the reliability of the liquid cooling detection system W 系统 to verify.

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