Battery energy storage system environment adaptability evaluation method and related device

Abstract

The invention belongs to an evaluation method of a battery energy storage system, and provides an environmental adaptability evaluation method of the battery energy storage system and a related device for solving the problem of lack of energy storage system performance evaluation methods and technologies under various complex environmental conditions at present. The influence conditions of the climate and environment factors on the battery energy storage system at the to-be-installed site are determined, the weight of the screened environmental adaptability evaluation indexes can be calculated, and the battery energy storage system can be evaluated objectively and accurately in combination with assignment scoring. Various design parameters, functions and technical parameters of the energy storage system in different application environments can be evaluated, a development direction is provided for targeted design of the energy storage system under different environment application conditions, and the method has a guiding effect on industry development.

Description

Technical Field

[0001] The present application relates to a method for evaluating a battery energy storage system, and specifically to a method for evaluating the environmental adaptability of a battery energy storage system and related devices. Background Art

[0002] When energy storage plays a flexible adjustment and active support role in new power systems, it needs to withstand the test of different natural environmental conditions, such as high temperature, severe cold, high altitude, strong wind and sand, high salt fog, high humidity and heat, etc. The structure of the energy storage system is complex, usually including energy storage batteries, battery management systems, energy storage converters, energy storage monitoring equipment, fire protection systems and HVAC systems, etc. During the operation of the energy storage system, it may face the influence of multiple environmental factors at the same time. The degree of influence, failure manifestation and failure mechanism of different environmental factors on each component of the energy storage system are not consistent, which may cause rapid decline in battery performance, corrosion and accelerated aging of structural materials of energy storage equipment, insulation failure, abnormal function of electronic devices in the management system, etc. It is necessary to carry out targeted structural and functional design of the energy storage system in combination with the application environment to judge whether the energy storage system complete product meets the safety and reliability requirements under different environmental application conditions.

[0003] At present, the methods for evaluating energy storage system complete products are mostly focused on the health status and safety assessment and life prediction technology of energy storage equipment under a single environmental factor (temperature, humidity, air pressure, etc.), and there is a lack of performance evaluation methods and technologies for energy storage systems under various complex environmental conditions. Summary of the invention

[0004] In order to solve the problem that there is currently a lack of methods and techniques for evaluating the performance of energy storage systems under various complex environmental conditions, the present application provides a method for evaluating the environmental adaptability of a battery energy storage system and related devices.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions: In a first aspect, the present application proposes a method for evaluating the environmental adaptability of a battery energy storage system, comprising: Determine the climate and environmental factors that affect the battery energy storage system, and obtain environmental data corresponding to the climate and environmental factors at the location where the battery energy storage system is to be installed; Determine the impact of various climate and environmental factors on the BESS and the target components in the BESS, and determine the impact of environmental factors at the proposed installation site based on environmental data; Select environmental adaptability evaluation indicators of battery energy storage systems and target components in battery energy storage systems from design and manufacturing information and technical performance indicators of battery energy storage systems; According to the target composition of the environmental factors affecting the proposed installation site, the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target composition are determined using the hierarchical analysis method; Assign values ​​and scores to the environmental adaptability evaluation indicators of the battery energy storage system and target components; The weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target composition, as well as the assigned scoring results, are weighted and summed to obtain the environmental adaptability evaluation result.

[0006] Furthermore, the climate environment factors include temperature, humidity, air pressure, dust and salt spray.

[0007] Furthermore, the target components in the battery energy storage system include energy storage batteries, battery management systems and energy storage inverters.

[0008] Furthermore, the screening of environmental adaptability evaluation indicators of the battery energy storage system and the target components in the battery energy storage system from the design and manufacturing information and technical performance indicators of the battery energy storage system includes: The environmental adaptability evaluation indicators of energy storage batteries include material chemical system, structural composition, structural protection, thermal management design, electrical safety design, electrical performance and safety performance under different environmental conditions; The environmental adaptability evaluation indicators of the battery management system include voltage, current, temperature data acquisition and functions and technical parameters associated with environmental control; The environmental adaptability evaluation index of the energy storage converter includes electrical safety design parameters and parameters related to normal startup and operation capabilities under different environmental conditions; The environmental adaptability evaluation indicators of the battery energy storage system include the environmental adaptability related parameters of the energy storage battery, battery management system and energy storage inverter, as well as the parameters related to the overall structural protection and electrical safety design of the battery energy storage system.

[0009] Furthermore, the weights of the environmental adaptability evaluation indexes of the battery energy storage system and the target component are determined by using the hierarchical analysis method, including: The following steps are performed for the environmental adaptability evaluation indicators of the battery energy storage system and the target component respectively: (1) According to the impact of environmental factors at the proposed installation site, the nine-level scaling method is used to compare the relative importance levels of different indicators in the first-level indicators and construct a judgment matrix.

[0010] (2) Calculate the weight vector of each element in the judgment matrix; (3) Calculate the relative weight vector of the next level indicator relative to the previous level indicator in sequence; (4) Calculate the weight vector of the last level indicator relative to environmental adaptability.

[0011] Furthermore, the environmental adaptability evaluation index assignment and scoring of the battery energy storage system and the target component includes: If the environmental adaptability evaluation index does not meet the standard requirements, the environmental adaptability evaluation index score is 0; if the environmental adaptability evaluation index meets the standard requirements, the index is assigned a score in the range of (0,1) according to the gap between the environmental adaptability evaluation index and the standard requirement value, mode, and theoretical optimal value.

[0012] Furthermore, the index is assigned a value and scored in the range of (0,1), including: The value within the range of standard requirements and mode is (0, 0.5), the value around the mode is (0.5, 0.7), and the value within the range of mode and theoretical optimal value is (0.7, 1).

[0013] In the second aspect, the present application proposes a battery energy storage system environmental adaptability evaluation system, comprising: A data module is used to determine the climate and environmental factors that affect the battery energy storage system and obtain environmental data corresponding to the climate and environmental factors at the location where the battery energy storage system is to be installed; The impact module is used to determine the impact of various climate and environmental factors on the battery energy storage system and the target components in the battery energy storage system, and to determine the impact of environmental factors at the proposed installation site in combination with environmental data; An index screening module, used to screen the battery energy storage system from the design and manufacturing information and technical performance indicators of the battery energy storage system, as well as the environmental adaptability evaluation indicators of the target components in the battery energy storage system; A weight module is used to determine the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target component using the analytic hierarchy process according to the environmental factors of the proposed installation site; A scoring module is used to assign values ​​and scores to the environmental adaptability evaluation indicators of the battery energy storage system and the target components; The evaluation module is used to perform weighted summation of the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target component, as well as the assigned scoring results, to obtain the environmental adaptability evaluation results.

[0014] In a third aspect, the present application proposes an electronic device, comprising: a memory, and one or more processors; the memory is coupled to the processor; wherein the memory stores computer program code, the computer program code includes computer instructions, and when the computer instructions are executed by the processor, the electronic device executes the steps of the above-mentioned battery energy storage system environmental adaptability evaluation method.

[0015] In a fourth aspect, the present application proposes a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned method for evaluating environmental adaptability of a battery energy storage system are implemented.

[0016] Compared with the prior art, this application has the following beneficial effects: This application proposes a method for evaluating the environmental adaptability of a battery energy storage system, which obtains environmental data corresponding to the climate and environmental factors of the proposed installation site. According to the impact of these climate and environmental factors on the battery energy storage system at the proposed installation site, the weights of the selected environmental adaptability evaluation indicators can be calculated. Combined with the assigned scores, the battery energy storage system can be objectively and accurately evaluated. This application can evaluate the various design parameters, functions and technical parameters of energy storage systems in different application environments, provide development directions for the targeted design of energy storage systems under different environmental application conditions, and play a guiding role in the development of the industry. Through the method of this application, the product quality and environmental safety protection technology level of the energy storage system under different environmental conditions can be intuitively identified, which is helpful for the technical comparison and selection of products, and the energy storage system that is suitable for special environmental conditions can be screened out, providing important technical support for the stable operation of the power system.

[0017] The present application also proposes a battery energy storage system environmental adaptability evaluation system, electronic equipment and computer storage medium, which have all the advantages of the above-mentioned battery energy storage system environmental adaptability evaluation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of a flow chart of a method for evaluating environmental adaptability of a battery energy storage system of this application; Figure 2 A schematic diagram of the environmental adaptability evaluation system of the battery energy storage system of this application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] As a core element in building a new power system in the future, the importance of new energy storage technology is self-evident, especially in promoting the transformation of the global energy structure and achieving the goals of carbon peak and carbon neutrality. Faced with more complex and changeable geographical environments and climatic conditions, how to ensure the stable operation of energy storage systems in various extreme natural environments has become an urgent problem to be solved. For example, high temperature will accelerate the chemical reaction inside the battery, causing battery performance degradation, capacity reduction, and even thermal runaway. The response strategy can be to use high temperature resistant materials, optimize the thermal management system, increase the heat dissipation device, and develop precise temperature control technology under high temperature environment. Severe cold environment will reduce battery activity, affect charging and discharging efficiency, and may cause electrolyte solidification. The low pressure environment in high altitude areas will affect the insulation performance and heat dissipation effect of electrical equipment. Strong wind and sand environment will cause equipment wear and block heat dissipation channels. High salt fog environment will corrode metal parts and affect electrical connections. High humidity and heat environment is prone to condensation inside the equipment, affecting electrical performance and promoting mold growth.

[0027] In order to comprehensively evaluate the performance of energy storage systems under different environmental conditions, a complete environmental adaptability evaluation system needs to be established.

[0028] Based on the above situation, the present application proposes a method for evaluating the environmental adaptability of a battery energy storage system and a related device. The present application is described in detail below in conjunction with embodiments and drawings.

[0029] like Figure 1 As shown, it is a schematic diagram of a method for evaluating environmental adaptability of a battery energy storage system of the present application, which may include: S101, determining the climate and environmental factors that affect the battery energy storage system, and obtaining environmental data corresponding to the climate and environmental factors at the location where the battery energy storage system is to be installed.

[0030] First, it is necessary to identify all climate and environmental factors that may affect the performance of the battery energy storage system, such as temperature, humidity, salt spray, sand and dust, thunderstorms, altitude, wind direction and speed, etc. Then obtain environmental data, and collect specific data on these climate and environmental factors at the proposed installation site through various channels such as weather stations, historical weather records, and on-site monitoring equipment. The data can be as comprehensive and accurate as possible and cover the entire cycle of the system's expected operation.

[0031] S102, determining the impact of various climate and environmental factors on the battery energy storage system and the target components in the battery energy storage system, and combining environmental data to determine the impact of environmental factors on the proposed installation site.

[0032] Based on existing research, empirical data and expert knowledge, it is possible to analyze how each climate and environmental factor affects the overall performance of the battery energy storage system, as well as the reliability and life of key components in the battery energy storage system. The key components in the battery energy storage system can be selected according to the evaluation needs. For example, it can be batteries, converters, control systems, cooling systems, etc., as the target components in the battery energy storage system. Then, the collected environmental data is combined with the impact analysis to evaluate the actual impact of each climate and environmental factor on the battery energy storage system at the proposed installation site.

[0033] In practical applications, based on the impact of various climatic and environmental factors on the functions, technical performance and safety of battery energy storage systems, combined with the experience of technical experts in the field of energy storage, we can formulate protection improvement measures for battery energy storage systems under major environmental influencing factors such as high temperature, low temperature, high humidity, low air pressure, sand and dust, and high salt fog. In fact, after collecting environmental data corresponding to climatic and environmental factors, we should pay more attention to the basis of which evaluation indicators in battery energy storage systems and key components in battery energy storage systems, and provide a theoretical basis for the subsequent calculation of weights. It should be noted that protection improvement measures can be formulated simultaneously when determining the impact of environmental factors at the proposed installation site in the evaluation method, and are used to make corresponding improvements to the battery energy storage system and the target components in the battery energy storage system after the evaluation is completed.

[0034] In practical applications, such as high and low temperatures, energy storage battery systems suitable for wide temperature range environments, reliable thermal management systems and management strategies, and appropriate heating, ventilation and air conditioning systems can be selected to ensure that the energy storage battery is in a suitable operating temperature range and extend the life of the energy storage battery. In high humidity environments, dehumidifiers are configured to avoid corrosion, short circuits or system failures of internal components of the energy storage system. Under high altitude conditions, energy storage batteries and electrical equipment suitable for high altitude conditions are selected, and targeted electrical designs are carried out to avoid the deterioration of equipment insulation performance and the reduction of the effectiveness of safety protection devices caused by the drop in air pressure. In dusty environments, the overall protection design of energy storage equipment is strengthened to prevent dust from entering the system, resulting in reduced insulation performance of electrical equipment and equipment short circuit failures. Under salt spray conditions, the equipment is designed to be corrosion-resistant, and system protection, electrical safety, and internal environmental control are strengthened to improve the tolerance of the energy storage system in high salt spray environments.

[0035] S103, selecting environmental adaptability evaluation indicators of the battery energy storage system and target components in the battery energy storage system from the design and manufacturing information and technical performance indicators of the battery energy storage system.

[0036] In practical applications, evaluation indicators directly related to environmental adaptability are selected from the design and manufacturing information and technical performance indicators of the battery energy storage system. These indicators should be able to reflect the performance changes of the battery energy storage system under different climatic conditions. It is also necessary to select specific environmental adaptability evaluation indicators for each target component. The environmental adaptability evaluation indicators can be adjusted according to the evaluation needs.

[0037] The battery energy storage system consists of energy storage batteries, battery management systems, energy storage inverters and other components. This application uses a combination of design and manufacturing information and technical performance indicators to carry out environmental adaptability evaluation. Among them, the design and manufacturing information reflects the environmental protection strategy of product developers to a certain extent, and the design and manufacturing information of the energy storage system can be obtained through the product manual. The technical performance intuitively reflects the performance and safety and reliability of the energy storage system under specific environmental conditions, and the technical performance indicators can be obtained through the product factory inspection report and type inspection report. As an example: The design and manufacturing information in the environmental adaptability evaluation indicators of energy storage batteries mainly include parameters such as material chemical system, structural composition, structural protection, thermal management design, and electrical safety design. The technical performance mainly includes electrical performance and safety performance parameters under different environmental conditions. The environmental adaptability evaluation indicators of the battery management system mainly include data acquisition of voltage, current, temperature, etc. and functions and technical parameters related to environmental control. The environmental adaptability evaluation indicators of the energy storage inverter mainly include electrical safety design parameters and the ability parameters of normal startup and operation under different environmental conditions. The environmental adaptability of the battery energy storage system is related to the environmental adaptability of the energy storage battery, battery management system and energy storage inverter, and is also related to parameters such as the overall structural protection and electrical safety design of the system.

[0038] S104, according to the impact of environmental factors at the proposed installation site, determine the weights of environmental adaptability evaluation indicators of the battery energy storage system and the target component using the analytic hierarchy process.

[0039] It should be noted that the hierarchical analysis method can adopt the following methods: (1) Constructing a hierarchical structure: According to the characteristics of the battery energy storage system, a hierarchical model is constructed, which usually includes a target layer, a criterion layer, and an indicator layer.

[0040] (2) Constructing a judgment matrix: Through expert scoring, questionnaire surveys, etc., construct a judgment matrix between different levels to indicate the relative importance of each evaluation indicator.

[0041] (3) Calculate weights: Use the relevant algorithms of the hierarchical analysis method, such as the sum-product method and the square root method, to calculate the weights of each evaluation indicator. The weights reflect the importance of each indicator in the overall evaluation.

[0042] S105, assigning scores to the environmental adaptability evaluation indicators of the battery energy storage system and the target component.

[0043] For each environmental adaptability evaluation indicator, a clear scoring standard should be established, which may include the scoring range, scoring level and corresponding description, etc. According to the performance of the battery energy storage system and the target components under actual environmental conditions, as well as the collected data, each evaluation indicator should be assigned a score. In actual application, the scoring should be objective, fair and based on actual evidence.

[0044] As an example, when assigning values ​​and scoring the environmental adaptability evaluation indicators, the following methods can be used: 1. If there are clear requirements in the standard specifications. If the standard requirements are not met, the overall score of the corresponding environmental adaptability evaluation index is 0; if the standard requirements are met, the index is scored in the range of (0,1) according to the gap between the environmental adaptability evaluation index and the standard requirement value, mode, and theoretical optimal value, with values ​​between the standard requirement value and the mode value (0,0.5), values ​​around the mode value (0.5,0.7), and values ​​between the mode value and the theoretical optimal value (0.7,1). Among them, the mode comes from a large amount of test and inspection data conducted in accordance with the standard specifications, which is a technical level that most products can achieve.

[0045] 2. If there is no clear requirement in the standard specification, points will be assigned in the range of (0,1) according to the current technical level of the environmental adaptability evaluation index and its compatibility with the climate environment in which the energy storage system is applied.

[0046] It should be noted that the closer the score of the environmental adaptability evaluation index is to 1, the better the environmental adaptability is.

[0047] S106, weighting and summing the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target component, and the assigned scoring results, to obtain an environmental adaptability evaluation result.

[0048] The weight of each environmental adaptability evaluation index is multiplied by the corresponding scoring result to obtain a weighted score. Then, all weighted scores are added together to obtain a comprehensive evaluation result of the environmental adaptability of the battery energy storage system. In practical applications, the evaluation results can be interpreted and analyzed to indicate under which climatic and environmental conditions the system performs better and under which conditions there may be risks or deficiencies.

[0049] In some embodiments of the present application, the environmental adaptability evaluation indicators of the battery energy storage system, the energy storage battery, the battery management system and the energy storage inverter can be set according to the following Tables 1 to 4.

[0050] Table 1 Evaluation indexes of environmental adaptability of energy storage batteries

[0051] Table 2 Environmental adaptability evaluation indicators of battery management system

[0052] Table 3 Environmental adaptability evaluation indexes of energy storage converters

[0053] Table 4 Environmental adaptability evaluation indicators of energy storage system

[0054] For the setting of the above evaluation indicators, the following method can be used to calculate the weight: (1) Constructing a judgment matrix According to the determined climate environment of the energy storage system application and the environmental improvement and protection measures for the battery energy storage system under different climate environments formulated according to expert experience, the nine-level scaling method (as shown in Table 5) is used to compare the relative importance levels of different indicators at the same level in the first indicator of the energy storage battery evaluation, and a judgment matrix is ​​constructed.

[0055] Table 5 Meaning of the five scales “1-9”

[0056] Construct the weight judgment matrix of the first-level indicators relative to the environmental adaptability of energy storage batteries as follows:

[0057] in, is the judgment matrix No. Line The elements of the column represent different environmental adaptability evaluation indicators and the relative importance of . , , It is the first-level indicator quantity of energy storage batteries.

[0058] (2) Determine the weights of factors at each level The matrix The elements in are normalized by column, and the normalized result is , ; Add the elements in the same row of the normalized matrix, that is ; The result after adding the elements Divide by ,Right now , the corresponding vector , which is the weight vector of each element.

[0059] (3) Check the consistency of the judgment matrix Assumptions For the matrix The largest characteristic root of ,in, express No. A quantity.

[0060] matrix The consistency index is: , the random consistency index of different scales is different. Introducing consistency ratio , , is a random consistency indicator. hour, With satisfactory consistency; when hour, If there is no consistency, it means that a logical error occurred when constructing the judgment matrix, and the judgment matrix needs to be reorganized until consistency is met.

[0061] (4) Using the same method, calculate the relative weights of the second-level indicators of energy storage batteries relative to the first-level indicators.

[0062] (5) Finally, calculate the weight vector of the second-level index of the energy storage battery relative to the environmental adaptability of the energy storage battery , perform total sorting, that is, the weight of the second-level indicator in the target layer, It is the product of the weight of the first-level indicator relative to the environmental adaptability of the energy storage battery and the weight of the second-level indicator relative to the first-level indicator. , It is the number of indicators at the last level (here is the second level) in the environmental adaptability evaluation index of energy storage batteries.

[0063] According to the above method, the total ranking of environmental adaptability weights of energy storage battery management system can be obtained in the same way. , It is the number of indicators at the last level in the environmental adaptability evaluation index of the battery management system.

[0064] Total ranking of environmental adaptability weights of energy storage converters , It is the number of the last level indicators in the environmental adaptability evaluation index of the energy storage converter.

[0065] Overall ranking of environmental adaptability weights of battery energy storage systems , This is the number of indicators at the last level (here the second level) of the environmental adaptability of the energy storage system.

[0066] It should be noted that, in some embodiments of the present application, the last level may not be the first level or the second level, and can be set according to actual conditions.

[0067] The corresponding environmental adaptability evaluation results are obtained by the following method: (1) The environmental adaptability evaluation model of energy storage batteries is:

[0068] in, is the environmental adaptability score of the energy storage battery, It is the first indicator weight of the last level of energy storage battery. It is the first indicator score of the last level of energy storage battery. The last level of energy storage battery The weight of the indicator, The last level of energy storage battery An indicator score.

[0069] (2) The environmental adaptability evaluation model of the battery management system is:

[0070] in, is the environmental adaptability score of the battery management system, It is the weight of the first indicator of the last level of the battery management system. It is the first indicator score of the last level of the battery management system. The last level of the battery management system The weight of the indicator, The last level of the battery management system An indicator score.

[0071] (3) The environmental adaptability evaluation model of the energy storage converter is:

[0072] in, is the environmental adaptability score of the energy storage converter, is the first indicator weight of the last level of the energy storage converter, It is the first indicator score of the last level of the energy storage converter. The last level of the energy storage converter The weight of the indicator, The last level of the energy storage converter An indicator score.

[0073] (4) The environmental adaptability of the battery energy storage system is closely related to the environmental adaptability of the energy storage battery, battery management system and energy storage inverter. Therefore, the environmental adaptability models of the energy storage battery, battery management system and energy storage inverter are associated in the environmental adaptability model of the energy storage system. The environmental adaptability evaluation model of the battery energy storage system is:

[0074] in, is the environmental adaptability score of the battery energy storage system, is the first indicator weight of the last level of the battery energy storage system, It is the first indicator score of the last level of the battery energy storage system. The last level of the battery energy storage system The weight of the indicator, The last level of the battery energy storage system An indicator score.

[0075] This application determines the climate environment for the application of battery energy storage systems, formulates environmental improvement and protection measures for battery energy storage systems based on climate and environmental factors, and then constructs an environmental adaptability evaluation index system to determine the weights of environmental adaptability evaluation indicators for energy storage batteries, battery management systems, energy storage inverters, and energy storage systems. Finally, an environmental adaptability evaluation model is established based on the indicator weights and scores. Based on the environmental protection improvement measures for energy storage systems formulated according to different environmental factors, the hierarchical analysis method is used to determine the hierarchical single ranking of environmental adaptability evaluation indicators for energy storage systems, obtain the weight relationship between upper and lower level indicators, and then obtain the hierarchical total ranking, and associate environmental factors with environmental adaptability indicators for energy storage systems. Finally, through the environmental adaptability evaluation indicator assignment rules, an environmental adaptability evaluation model is established to achieve environmental adaptability evaluation of battery energy storage systems and key core components.

[0076] like Figure 2 As shown, it is a schematic diagram of the environmental adaptability evaluation system of the battery energy storage system of the present application, which may include: A data module is used to determine the climate and environmental factors that affect the battery energy storage system and obtain environmental data corresponding to the climate and environmental factors at the location where the battery energy storage system is to be installed; The impact module is used to determine the impact of various climate and environmental factors on the battery energy storage system and the target components in the battery energy storage system, and to determine the impact of environmental factors at the proposed installation site in combination with environmental data; An index screening module, used to screen the battery energy storage system from the design and manufacturing information and technical performance indicators of the battery energy storage system, as well as the environmental adaptability evaluation indicators of the target components in the battery energy storage system; A weight module is used to determine the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target component using the analytic hierarchy process according to the environmental factors of the proposed installation site; A scoring module is used to assign values ​​and scores to the environmental adaptability evaluation indicators of the battery energy storage system and the target components; The evaluation module is used to perform weighted summation of the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target component, as well as the assigned scoring results, to obtain the environmental adaptability evaluation results.

[0077] It should be noted that in the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the system embodiments described above are merely schematic. For example, the division of each module is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules can be combined or integrated into another device, or some features can be ignored or not executed. The module described as a separate component may or may not be physically separated. The component displayed as a module may be a physical unit or multiple physical units, that is, it may be located in one place, or it may be distributed in multiple different places. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0078] In addition, each module in each embodiment of the present invention may be integrated into a processing unit, each module may exist physically separately, or two or more modules may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0079] An embodiment of the present application also provides an electronic device, which may include one or more processors, a memory, and a communication interface.

[0080] The memory, the communication interface and the processor are coupled, for example, the memory, the communication interface and the processor may be coupled together via a bus.

[0081] The communication interface is used for data transmission with other devices. The memory stores computer program code. The computer program code includes computer instructions. When the computer instructions are executed by the processor, the electronic device executes the steps of the above-mentioned battery energy storage system environmental adaptability evaluation method.

[0082] Wherein, the processor can be a processor or a controller, for example, a central processing unit (CPU), a general processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the present disclosure. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of DSP and microprocessors, and the like. The processor can be used to support electronic devices to execute the method steps provided in the above embodiments.

[0083] The bus may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The above bus may be divided into an address bus, a data bus, a control bus, etc.

[0084] An embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned method for evaluating environmental adaptability of a battery energy storage system are implemented.

[0085] The computer-readable storage medium involved in the present application includes random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the technical field.

[0086] For the description of the relevant parts of the battery energy storage system environmental adaptability evaluation system, electronic device, and computer-readable storage medium provided in the embodiments of the present application, please refer to the detailed description of the corresponding parts in the battery energy storage system environmental adaptability evaluation method provided in the embodiments of the present application, which will not be repeated here. In addition, the parts of the above technical solutions provided in the embodiments of the present application that are consistent with the implementation principles of the corresponding technical solutions in the prior art are not described in detail to avoid excessive elaboration.

[0087] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for evaluating the environmental adaptability of a battery energy storage system, characterized in that: include: Determine the climate and environmental factors that affect the battery energy storage system, and obtain environmental data corresponding to the climate and environmental factors at the location where the battery energy storage system is to be installed; Determine the impact of various climate and environmental factors on the BESS and the target components in the BESS, and determine the impact of environmental factors at the proposed installation site based on environmental data; Select environmental adaptability evaluation indicators of battery energy storage systems and target components in battery energy storage systems from design and manufacturing information and technical performance indicators of battery energy storage systems; According to the environmental factors of the proposed installation site, the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target components are determined using the analytic hierarchy process; Assign values ​​and scores to the environmental adaptability evaluation indicators of the battery energy storage system and target components; The weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target composition, as well as the assigned scoring results, are weighted and summed to obtain the environmental adaptability evaluation result.

2. The method for evaluating environmental adaptability of a battery energy storage system according to claim 1, characterized in that: The climate and environmental factors include temperature, humidity, air pressure, sand, dust and salt spray.

3. The method for evaluating environmental adaptability of a battery energy storage system according to claim 1, characterized in that: The target components in the battery energy storage system include energy storage batteries, battery management systems and energy storage inverters.

4. The method for evaluating environmental adaptability of a battery energy storage system according to claim 1, characterized in that: The environmental adaptability evaluation indexes of the battery energy storage system and the target components in the battery energy storage system are selected from the design and manufacturing information and technical performance indicators of the battery energy storage system, including: The environmental adaptability evaluation indicators of energy storage batteries include material chemical system, structural composition, structural protection, thermal management design, electrical safety design, electrical performance and safety performance under different environmental conditions; The environmental adaptability evaluation indicators of the battery management system include voltage, current, temperature data acquisition and functions and technical parameters associated with environmental control; The environmental adaptability evaluation index of the energy storage converter includes electrical safety design parameters and parameters related to normal startup and operation capabilities under different environmental conditions; The environmental adaptability evaluation indicators of the battery energy storage system include the environmental adaptability related parameters of the energy storage battery, battery management system and energy storage inverter, as well as the parameters related to the overall structural protection and electrical safety design of the battery energy storage system.

5. The method for evaluating environmental adaptability of a battery energy storage system according to claim 1, characterized in that: The method of using the analytic hierarchy process to determine the weights of the environmental adaptability evaluation indexes of the battery energy storage system and the target component includes: The following steps are performed for the environmental adaptability evaluation indicators of the battery energy storage system and the target component respectively: (1) Based on the environmental factors of the proposed installation site, the nine-level scaling method is used to compare the relative importance levels of different indicators in the first-level indicators and construct a judgment matrix; (2) Calculate the weight vector of each element in the judgment matrix; (3) Calculate the relative weight vector of the next level indicator relative to the previous level indicator in sequence; (4) Calculate the weight vector of the last level indicator relative to environmental adaptability.

6. The method for evaluating environmental adaptability of a battery energy storage system according to claim 1, characterized in that: The environmental adaptability evaluation index assignment and scoring of the battery energy storage system and the target component include: If the environmental adaptability evaluation index does not meet the standard requirements, the environmental adaptability evaluation index score is 0; if the environmental adaptability evaluation index meets the standard requirements, the index is assigned a score in the range of (0,1) according to the gap between the environmental adaptability evaluation index and the standard requirement value, mode, and theoretical optimal value.

7. The method for evaluating environmental adaptability of a battery energy storage system according to claim 6, characterized in that: The index is assigned a value in the range of (0,1), including: The value within the range of standard requirements and mode is (0,0.5), the value around the mode is (0.5,0.7), and the value within the range of mode and theoretical optimal value is (0.7,1).

8. A battery energy storage system environmental adaptability evaluation system, characterized in that: include: A data module is used to determine the climate and environmental factors that affect the battery energy storage system and obtain environmental data corresponding to the climate and environmental factors at the location where the battery energy storage system is to be installed; The impact module is used to determine the impact of various climate and environmental factors on the battery energy storage system and the target components in the battery energy storage system, and to determine the impact of environmental factors at the proposed installation site in combination with environmental data; An index screening module, used to screen the battery energy storage system from the design and manufacturing information and technical performance indicators of the battery energy storage system, as well as the environmental adaptability evaluation indicators of the target components in the battery energy storage system; A weight module is used to determine the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target component using the analytic hierarchy process according to the environmental factors of the proposed installation site; A scoring module is used to assign values ​​and scores to the environmental adaptability evaluation indicators of the battery energy storage system and the target components; The evaluation module is used to perform weighted summation of the weights of the environmental adaptability evaluation indicators of the battery energy storage system and the target component, as well as the assigned scoring results, to obtain the environmental adaptability evaluation results.

9. An electronic device, characterized in that: include: A memory, one or more processors; the memory is coupled to the processor; wherein the memory stores computer program code, the computer program code includes computer instructions, and when the computer instructions are executed by the processor, the electronic device executes the steps of the method for evaluating the environmental adaptability of a battery energy storage system as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for evaluating environmental adaptability of a battery energy storage system as claimed in any one of claims 1 to 7 are implemented.

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