Energy storage system reliability evaluation method

Abstract

The invention provides an energy storage system reliability evaluation method, which belongs to the technical field of power supply devices, and specifically comprises the following steps: dividing energy storage adjustment times into different energy storage adjustment demand intervals by using adjustment data, and determining the energy storage adjustment times by taking the energy storage adjustment data corresponding to the different energy storage adjustment demand intervals as the basis; weight values of different energy storage adjustment demand intervals are determined, the adjustment demand intervals are screened, and the adjustment reliability of the energy storage system in the different energy storage adjustment demand intervals is determined on the basis of response adjustment deviation data corresponding to the different energy storage adjustment demand intervals. And when the adjustment reliability of the energy storage system in the screening adjustment demand interval meets the requirement, the evaluation result of the reliability of the energy storage system is determined on the basis of the weight values and the adjustment reliability of different energy storage adjustment demand intervals, so that the accuracy of the reliability evaluation result of the energy storage system is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply devices, and in particular relates to a reliability assessment method for an energy storage system. Background Art

[0002] With the large-scale application of energy storage systems, they have gradually become an indispensable key equipment in the power system. Therefore, in order to accurately evaluate the operating status of the energy storage system, abnormal equipment positioning is carried out in the invention patent application CN202311136323.9 "Abnormal Positioning and Reliability Evaluation Method and System for Energy Storage Power Station Equipment"; the reliability of the energy storage power station is determined by the reliability evaluation model, which has the advantages of timely discovering equipment failures and improving the reliability and operating efficiency of the energy storage power station. However, there are the following technical problems: For different energy storage systems, due to the deviation of the grid nodes where they are located, there are certain differences in their energy storage regulation requirements. Even for the same energy storage system, due to the difference in its energy storage regulation requirements, there are certain differences in its regulation reliability. Therefore, if the reliability of the energy storage system cannot be evaluated in combination with the energy storage regulation requirements of the energy storage system, the accuracy of the reliability evaluation results of the energy storage system cannot be guaranteed.

[0003] In response to the above technical problems, the present invention provides a method for evaluating the reliability of an energy storage system. Summary of the invention

[0004] To achieve the purpose of the present invention, the present invention adopts the following technical solutions: According to one aspect of the present invention, a method for evaluating the reliability of an energy storage system is provided.

[0005] A reliability assessment method for an energy storage system, specifically comprising: S1 obtains response adjustment deviation data of the energy storage system in different energy storage adjustment times, and when it is determined based on the response adjustment deviation data that the operating state of the energy storage system meets the requirements, proceeds to the next step; S2 determines the adjustment data of energy storage adjustment indicators of different dimensions for different energy storage adjustment times, divides the energy storage adjustment times into different energy storage adjustment demand intervals using the adjustment data, and determines the weight values ​​of different energy storage adjustment demand intervals and screens the adjustment demand intervals based on the energy storage adjustment data corresponding to the different energy storage adjustment demand intervals; S3 determines the regulation reliability of the energy storage system in different energy storage regulation demand intervals based on the response regulation deviation data corresponding to different energy storage regulation demand intervals, and proceeds to the next step when the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirements; S4 determines the reliability evaluation result of the energy storage system based on the weight values ​​and regulation reliability of different energy storage regulation demand intervals.

[0006] The beneficial effects of the present invention are: 1. In the present invention, whether the operating state of the energy storage system meets the requirements is determined based on the response regulation deviation data, thereby achieving accurate evaluation of the operating state of the energy storage system from the perspective of the response deviation in the historical regulation response process. By combining with the actual energy storage regulation capability of the energy storage system, the energy storage system with insufficient regulation capability is screened, which also lays the foundation for further generating differentiated reliability evaluation methods for different types of energy storage systems.

[0007] 2. In the present invention, the reliability evaluation result of the energy storage system is determined based on the weight values ​​and regulation reliability of different energy storage regulation demand intervals, thereby realizing a unified combination with the energy storage regulation demand of the energy storage system. It not only takes into account the differences in the frequency of regulation in different energy storage regulation demand intervals, but also takes into account the differences in regulation reliability caused by response deviations in different energy storage regulation demand intervals, thereby realizing accurate evaluation of the reliability of the energy storage system from multiple angles and ensuring the accuracy of the reliability evaluation results.

[0008] A further technical solution is that the response regulation deviation data includes a response regulation capacity deviation, a response regulation power deviation and a deviation duration of the response regulation power deviation of the energy storage system.

[0009] A further technical solution is to determine whether the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirements, specifically including: Acquire the regulation reliability of the energy storage system in different screening and regulation intervals, and determine the revised reliability of the screening and regulation interval by using the regulation reliability and weight value of the screening and regulation interval; Whether the regulation reliability of the energy storage system in the screening regulation requirement interval meets the requirement is determined according to the average value of the corrected reliability in the screening regulation interval.

[0010] A further technical solution is that when the average value of the corrected reliability of the screening adjustment interval is less than a preset reliability threshold, it is determined that the adjustment reliability of the energy storage system in the screening adjustment interval does not meet the requirements.

[0011] A further technical solution is that the method for determining the evaluation result of the reliability of the energy storage system is: Based on the regulation reliability and weight values ​​of different energy storage regulation demand intervals, the revised reliability of different energy storage regulation demand intervals is determined; The reliability evaluation amount is determined according to the average value of the modified reliability of different energy storage regulation demand intervals, and the reliability evaluation amount is used to determine the evaluation result of the reliability of the energy storage system.

[0012] A further technical solution is that the reliability evaluation result includes abnormal, normal and reliable.

[0013] Other features and advantages will be described in the following description. The objects and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and drawings.

[0014] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0016] Figure 1 is a flow chart of a reliability assessment method for an energy storage system; Figure 2 is a flow chart of a method for determining a power response deviation amount; Figure 3 is a flow chart of a method for determining a weight value of an energy storage regulation demand interval; Figure 4 Flowchart of a method for adjusting a determination of reliability. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0018] Even for the same energy storage system, its reliability will vary due to differences in energy storage regulation requirements. Therefore, if the reliability of the energy storage system cannot be evaluated in combination with the energy storage regulation requirements of the energy storage system, the accuracy of the reliability evaluation results of the energy storage system cannot be guaranteed.

[0019] Determine whether the operating status of the energy storage system meets the requirements: determine by using the ratio of the response adjustment deviation number to the energy storage adjustment number of the energy storage system. When the ratio of the response adjustment deviation number to the energy storage adjustment number is less than 0.1, it is determined that the operating status of the energy storage system meets the requirements.

[0020] Screening regulation demand interval: the energy storage regulation demand interval in which the proportion of energy storage regulation times within the energy storage regulation demand interval is greater than 0.2.

[0021] The regulation reliability of the energy storage system in different energy storage regulation demand intervals: It is determined based on the proportion of response regulation deviation times corresponding to different energy storage regulation demand intervals.

[0022] The evaluation results of the reliability of the energy storage system are determined by the weight values ​​of different energy storage regulation demand intervals and the weights based on regulation reliability.

[0023] Embodiment 1 To solve the above problem, according to one aspect of the present invention, Figure 1 As shown, a method for evaluating the reliability of an energy storage system is provided, which specifically includes: S1 obtains response adjustment deviation data of the energy storage system in different energy storage adjustment times, and when it is determined based on the response adjustment deviation data that the operating state of the energy storage system meets the requirements, proceeds to the next step; Furthermore, the response regulation deviation data includes a response regulation capacity deviation, a response regulation power deviation and a deviation duration of the response regulation power deviation of the energy storage system.

[0024] Specifically, determining that the operating state of the energy storage system meets the requirements specifically includes: Determine the energy storage adjustment times when the energy storage system has a response deviation according to the response deviation data, and use it as the deviation adjustment times, and determine the adjustment deviation ratio of the energy storage system based on the ratio of the deviation adjustment times in the energy storage adjustment times; Based on the response deviation data of different deviation adjustment times, the deviation duration of the response adjustment power deviation of different deviation adjustment times is determined, and the power response deviation amount of different deviation adjustment times is determined according to the deviation duration of the response adjustment power deviation; The operating status value of the energy storage system is determined by the average value of the power response deviation at different deviation adjustment times, the weight of the adjustment deviation ratio, and whether the operating status of the energy storage system meets the requirements is determined based on the operating status value.

[0025] Specifically, Figure 2 As shown, the method for determining the power response deviation is: Based on the deviation duration of the response power deviation, determining the proportion of the adjustment duration of the deviation duration in the number of deviation adjustments, and using it as the adjustment duration proportion; The adjustment time ratio is used as the power response deviation of the deviation adjustment times.

[0026] Further, determining whether the operating state of the energy storage system meets the requirements based on the operating state value specifically includes: When the operating state value of the energy storage system is not within a preset interval, it is determined that the operating state of the energy storage system does not meet the requirements.

[0027] It should be further explained that when the operating state of the energy storage system does not meet the requirements, the evaluation result of the reliability of the energy storage system is determined to be abnormal.

[0028] It should also be noted that determining that the operating state of the energy storage system meets the requirements specifically includes: Determine the number of energy storage adjustments when the energy storage system has a response deviation according to the response deviation data, and use it as the number of deviation adjustments; Based on the response deviation data of different deviation adjustment times, the deviation durations of the response adjustment power deviations of different deviation adjustment times are determined, and the deviation adjustment times for which the deviation durations of the response adjustment power deviations do not meet the requirements are taken as the response deviation adjustment times; The operating state value of the energy storage system is determined by the proportion of the response deviation adjustment times in the energy storage adjustment times, and whether the operating state of the energy storage system meets the requirements is determined based on the operating state value.

[0029] It should also be noted that determining that the operating state of the energy storage system meets the requirements specifically includes: S11 determines the number of energy storage adjustments when the energy storage system has a response deviation according to the response deviation data, and uses it as the number of deviation adjustments, and judges whether the number of deviation adjustments meets the requirements. If so, proceed to the next step; if not, it is determined that the operating state of the energy storage system does not meet the requirements; S12 determines the adjustment capacity deviation of different deviation adjustment times according to the response adjustment capacity deviation of different deviation adjustment times, and judges whether there is a deviation adjustment time whose adjustment capacity deviation does not meet the requirement, if so, proceeds to the next step, if not, proceeds to step S15; S13 takes the number of deviation adjustments when the capacity deviation does not meet the requirement as the number of capacity deviation adjustments, and determines whether the number of capacity deviation adjustments meets the requirement. If so, proceed to the next step; if not, determine that the operating state of the energy storage system does not meet the requirement; S14 determines the deviation duration of the response adjustment power deviation of different capacity deviation adjustment times based on the response deviation data of different capacity deviation adjustment times, and determines the response deviation amount of different capacity deviation adjustment times in combination with the response adjustment power deviation of different deviation adjustment times, and judges whether the capacity deviation adjustment times for which the response deviation amount does not meet the requirement meet the requirement, if so, proceeds to the next step, if not, determines that the operating state of the energy storage system does not meet the requirement; S15 adjusts the deviation duration of the power deviation in response to different deviation adjustment times, and determines the operating status value of the energy storage system in combination with the power deviation and capacity deviation adjusted in response to different deviation adjustment times, and determines whether the operating status of the energy storage system meets the requirements based on the operating status value.

[0030] S2 determines the adjustment data of energy storage adjustment indicators of different dimensions for different energy storage adjustment times, divides the energy storage adjustment times into different energy storage adjustment demand intervals using the adjustment data, and determines the weight values ​​of different energy storage adjustment demand intervals and screens the adjustment demand intervals based on the energy storage adjustment data corresponding to the different energy storage adjustment demand intervals; Furthermore, the adjustment data is determined based on a reading result of a historical adjustment record of the energy storage system.

[0031] It is understandable that the energy storage regulation index includes regulation duration, regulation power and regulation capacity.

[0032] Specifically, using the regulation data to divide the energy storage regulation times into different energy storage regulation demand intervals specifically includes: Based on the adjustment data of different energy storage adjustment times, the deviation of the adjustment data of different energy storage adjustment times at different energy storage adjustment indicators is determined; Determine the average value of the deviations of different energy storage adjustment times at different energy storage adjustment indicators by using the deviation situation, and determine the similarity of different energy storage adjustment times according to the average value; The energy storage adjustment times that meet the requirements with similar degrees are divided into the same energy storage adjustment demand range.

[0033] It is understandable that if Figure 3 As shown, the method for determining the weight value of the energy storage regulation demand interval is: Based on the energy storage adjustment data, determine the energy storage adjustment number corresponding to the energy storage adjustment number, and use it as the matching adjustment number; Determining the frequency of adjustments in different divided time periods according to the number of matching adjustments in different divided time periods and the adjustment durations between different matching adjustment times; The weight value of the energy storage regulation demand interval is determined based on the regulation frequency in different divided time periods.

[0034] Further, when the weight value of the energy storage regulation requirement interval is greater than a preset weight threshold, the energy storage regulation requirement interval is determined to be a screening regulation requirement interval.

[0035] It should also be noted that the method for determining the weight value of the energy storage regulation demand interval is: Based on the energy storage adjustment data, determine the energy storage adjustment number corresponding to the energy storage adjustment demand interval, and use it as the matching adjustment number, judge whether the matching adjustment number of the energy storage adjustment demand interval is greater than the preset adjustment number, if so, determine the weight value of the energy storage adjustment demand interval based on the preset weight value, if not, proceed to the next step; Determine the cumulative adjustment time of the energy storage adjustment demand interval by using the adjustment time of different matching adjustment times, and judge whether the cumulative adjustment time is greater than the preset adjustment time. If so, determine the weight value of the energy storage adjustment demand interval based on the preset weight value. If not, proceed to the next step. According to the adjustment moments corresponding to different matching adjustment times, the matching adjustment times with interval durations less than the preset duration are determined, and the times are used as the screening adjustment times, and it is judged whether the screening adjustment times of the energy storage adjustment demand interval are greater than the adjustment times threshold, if so, the weight value of the energy storage adjustment demand interval is determined based on the preset weight value, if not, proceed to the next step; Determine the frequency of adjustment in different divided time periods according to the number of matching adjustments in different divided time periods and the adjustment duration between different matching adjustment times, and judge whether there is a divided time period in which the frequency of adjustment does not meet the requirements. If so, determine the weight value of the energy storage adjustment demand interval based on the preset weight value; if not, proceed to the next step; The weight value of the energy storage regulation demand interval is determined based on the regulation frequency in different divided time periods.

[0036] S3 determines the regulation reliability of the energy storage system in different energy storage regulation demand intervals based on the response regulation deviation data corresponding to different energy storage regulation demand intervals, and proceeds to the next step when the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirements; Specifically, Figure 4 As shown, the method for determining the adjustment reliability is: The energy storage adjustment times corresponding to the energy storage adjustment demand interval are used as the matching adjustment times, and the matching adjustment times with response adjustment deviation data are used as the matching deviation adjustment times; Determine the adjustment demand deviation amount for different matching deviation adjustment times by using the adjustment capacity deviation for different matching deviation adjustment times; The regulation reliability of the energy storage system in the energy storage regulation demand range is determined according to the weights of the regulation demand deviation amounts of different matching deviation adjustment times.

[0037] Further, determining whether the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirements specifically includes: Acquire the regulation reliability of the energy storage system in different screening and regulation intervals, and determine the revised reliability of the screening and regulation interval by using the regulation reliability and weight value of the screening and regulation interval; Whether the regulation reliability of the energy storage system in the screening regulation requirement interval meets the requirement is determined according to the average value of the corrected reliability in the screening regulation interval.

[0038] It can be understood that when the average value of the corrected reliability of the screening adjustment interval is less than the preset reliability threshold, it is determined that the adjustment reliability of the energy storage system in the screening adjustment interval does not meet the requirements.

[0039] Further, determining whether the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirements specifically includes: Acquiring the regulation reliability of the energy storage system in different screening and regulation intervals, and determining the reliability deviation interval in the screening and regulation interval by using the regulation reliability of the screening and regulation interval; Determine the sum of the weight values ​​of the reliability deviation intervals according to the weight values ​​of different reliability deviation intervals, and use it as the deviation weight sum; It is determined according to the deviation weight whether the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirement.

[0040] It can be understood that determining whether the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirements specifically includes: S31: obtaining the regulation reliability of the energy storage system in different screening and adjustment intervals, and using the regulation reliability of the screening and adjustment interval to determine whether there is a reliability deviation interval in the screening and adjustment interval, if not, proceeding to step S31; if yes, proceeding to the next step; S32 determines whether the number of the reliability deviation intervals is greater than the preset number of deviation intervals. If so, it is determined that the regulation reliability of the energy storage system in the screening regulation demand interval does not meet the requirements. If not, proceed to the next step. S33 determines the sum of the weight values ​​of the reliable deviation intervals according to the weight values ​​of different reliability deviation intervals, and uses it as the deviation weight sum, and judges whether the deviation weight sum meets the requirements. If so, proceed to the next step; if not, it is determined that the regulation reliability of the energy storage system in the screening regulation demand interval does not meet the requirements; S34 obtains the number of the reliability deviation intervals, and further determines the reliability comprehensive deviation amount in combination with the adjustment reliability and weight value of different reliability deviation intervals, and judges whether the reliability comprehensive deviation amount meets the requirements. If so, proceeds to the next step; if not, it is determined that the adjustment reliability of the energy storage system in the screening adjustment demand interval does not meet the requirements; S35 determines the modified reliability of the screening adjustment interval by using the adjustment reliability and weight value of the screening adjustment interval, and judges whether there is a screening adjustment interval whose modified reliability does not meet the requirements. If so, proceed to the next step; if not, determine whether the adjustment reliability of the energy storage system in the screening adjustment demand interval meets the requirements; S36 determines whether the regulation reliability of the energy storage system in the screening regulation requirement interval meets the requirement according to the average value of the modified reliability in the screening regulation interval.

[0041] S4 determines the reliability evaluation result of the energy storage system based on the weight values ​​and regulation reliability of different energy storage regulation demand intervals.

[0042] Specifically, the method for determining the reliability evaluation result of the energy storage system is: Based on the regulation reliability and weight values ​​of different energy storage regulation demand intervals, the revised reliability of different energy storage regulation demand intervals is determined; The reliability evaluation amount is determined according to the average value of the modified reliability of different energy storage regulation demand intervals, and the reliability evaluation amount is used to determine the evaluation result of the reliability of the energy storage system.

[0043] Furthermore, the reliability evaluation results include abnormal, normal and reliable.

[0044] It should also be noted that the method for determining the reliability evaluation result of the energy storage system is: Obtaining the regulation reliability of different energy storage regulation intervals, and using the regulation reliability to determine whether there is an energy storage regulation space in the energy storage regulation interval whose regulation reliability does not meet the requirements, if so, proceeding to the next step, if not, determining that the reliability evaluation result of the energy storage system is reliable; The energy storage regulation space whose regulation reliability does not meet the requirement is regarded as an insufficient reliability interval, and whether the number of the insufficient reliability intervals meets the requirement is determined, and if so, the next step is entered; if not, it is determined that the reliability evaluation result of the energy storage system is abnormal; Based on the adjustment reliability and weight values ​​of different reliability-deficient intervals, the interval adjustment deviation of the energy storage system is determined to determine whether the interval adjustment deviation of the energy storage system meets the requirements. If so, proceed to the next step; if not, determine that the reliability assessment result of the energy storage system is abnormal; The regulation reliability and weight values ​​of different energy storage regulation demand intervals are obtained, and the reliability evaluation amount is determined based on the regulation reliability and weight values ​​of different energy storage regulation demand intervals, and the reliability evaluation amount is used to determine the evaluation result of the reliability of the energy storage system.

[0045] Based on the above embodiments, the present invention achieves the following beneficial effects: 1. In the present invention, whether the operating state of the energy storage system meets the requirements is determined based on the response regulation deviation data, thereby achieving accurate evaluation of the operating state of the energy storage system from the perspective of the response deviation in the historical regulation response process. By combining with the actual energy storage regulation capability of the energy storage system, the energy storage system with insufficient regulation capability is screened, which also lays the foundation for further generating differentiated reliability evaluation methods for different types of energy storage systems.

[0046] 2. In the present invention, the reliability evaluation result of the energy storage system is determined based on the weight values ​​and regulation reliability of different energy storage regulation demand intervals, thereby realizing a unified combination with the energy storage regulation demand of the energy storage system. It not only takes into account the differences in the frequency of regulation in different energy storage regulation demand intervals, but also takes into account the differences in regulation reliability caused by response deviations in different energy storage regulation demand intervals, thereby realizing accurate evaluation of the reliability of the energy storage system from multiple angles and ensuring the accuracy of the reliability evaluation results.

[0047] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0048] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0049] The above description is only one or more embodiments of this specification and is not intended to limit this specification. For those skilled in the art, one or more embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the scope of the claims of this specification.

Claims

1. A method for evaluating the reliability of an energy storage system, characterized in that: Specifically include: Acquire response adjustment deviation data of the energy storage system in different energy storage adjustment times, and when it is determined based on the response adjustment deviation data that the operating state of the energy storage system meets the requirements, proceed to the next step; Determine the adjustment data of energy storage adjustment indicators in different dimensions for different energy storage adjustment times, divide the energy storage adjustment times into different energy storage adjustment demand intervals using the adjustment data, determine the weight values ​​of different energy storage adjustment demand intervals and screen the adjustment demand intervals based on the energy storage adjustment data corresponding to the different energy storage adjustment demand intervals; Based on the response regulation deviation data corresponding to different energy storage regulation demand intervals, the regulation reliability of the energy storage system in different energy storage regulation demand intervals is determined, and when the regulation reliability of the energy storage system in the screening regulation demand interval meets the requirements, the next step is entered; The reliability evaluation result of the energy storage system is determined based on the weight values ​​and regulation reliability of different energy storage regulation demand intervals.

2. The energy storage system reliability assessment method according to claim 1, characterized in that: The response regulation deviation data includes a response regulation capacity deviation, a response regulation power deviation and a deviation duration of a response regulation power deviation of the energy storage system.

3. The energy storage system reliability assessment method according to claim 1, characterized in that: Determining that the operating state of the energy storage system meets the requirements specifically includes: Determine the energy storage adjustment times when the energy storage system has a response deviation according to the response deviation data, and use it as the deviation adjustment times, and determine the adjustment deviation ratio of the energy storage system based on the ratio of the deviation adjustment times in the energy storage adjustment times; Based on the response deviation data of different deviation adjustment times, the deviation duration of the response adjustment power deviation of different deviation adjustment times is determined, and the power response deviation amount of different deviation adjustment times is determined according to the deviation duration of the response adjustment power deviation; The operating status value of the energy storage system is determined by the average value of the power response deviation at different deviation adjustment times, the weight of the adjustment deviation ratio, and whether the operating status of the energy storage system meets the requirements is determined based on the operating status value.

4. The energy storage system reliability assessment method according to claim 3, characterized in that: The method for determining the power response deviation is: Based on the deviation duration of the response power deviation, determining the proportion of the adjustment duration of the deviation duration in the number of deviation adjustments, and using it as the adjustment duration proportion; The adjustment time ratio is used as the power response deviation of the deviation adjustment times.

5. The energy storage system reliability assessment method according to claim 1, characterized in that: When the operating state of the energy storage system does not meet the requirements, it is determined that the evaluation result of the reliability of the energy storage system is abnormal.

6. The energy storage system reliability assessment method according to claim 1, characterized in that: The adjustment data is determined according to the reading result of the historical adjustment record of the energy storage system.

7. The energy storage system reliability assessment method according to claim 1, characterized in that: The energy storage regulation index includes regulation time, regulation power and regulation capacity.

8. The energy storage system reliability assessment method according to claim 1, characterized in that: The method for determining the weight value of the energy storage regulation demand interval is: Based on the energy storage adjustment data, determine the energy storage adjustment number corresponding to the energy storage adjustment number, and use it as the matching adjustment number; Determining the frequency of adjustments in different divided time periods according to the number of matching adjustments in different divided time periods and the adjustment durations between different matching adjustment times; The weight value of the energy storage regulation demand interval is determined based on the regulation frequency in different divided time periods.

9. The energy storage system reliability assessment method according to claim 1, characterized in that: The method for determining the adjustment reliability is: The energy storage adjustment times corresponding to the energy storage adjustment demand interval are used as the matching adjustment times, and the matching adjustment times with response adjustment deviation data are used as the matching deviation adjustment times; Determine the adjustment demand deviation amount for different matching deviation adjustment times by using the adjustment capacity deviation for different matching deviation adjustment times; The regulation reliability of the energy storage system in the energy storage regulation demand range is determined according to the weights of the regulation demand deviation amounts of different matching deviation adjustment times.

10. The energy storage system reliability assessment method according to claim 1, characterized in that: The method for determining the reliability evaluation result of the energy storage system is: Based on the regulation reliability and weight values ​​of different energy storage regulation demand intervals, the revised reliability of different energy storage regulation demand intervals is determined; The reliability evaluation amount is determined according to the average value of the modified reliability of different energy storage regulation demand intervals, and the reliability evaluation amount is used to determine the evaluation result of the reliability of the energy storage system.

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