Substation grounding standard system demand analysis method, device and electronic equipment

Abstract

The present application provides a method, device and electronic equipment for analyzing the requirements of a substation grounding standard system, and relates to the technical field of substation data processing, including: identifying the requirements data of the substation grounding standard system to obtain a preset number of key requirements; using the KANO model to divide the attributes of a preset number of key requirements to obtain the requirements classification results under each requirement attribute; generating an AHP hierarchical structure model of the indicator weights under each requirement attribute based on the requirements classification results; calculating the demand weight value of each requirement attribute under the substation grounding standard system based on the AHP hierarchical structure model; constructing a substation grounding standard system structure diagram based on the demand attributes and demand weight values, and the substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system. The technical solution in the present application can provide comprehensive guidance for the design of the substation grounding standard system, and ensure the scientificity, rationality and innovation of the grounding system.

Description

Technical Field

[0001] The present application relates to the technical field of substation data processing, and in particular to a method, device and electronic equipment for analyzing the requirements of a substation grounding standard system. Background Art

[0002] With the continuous development and expansion of the power system, the requirements for the safety and stability of substations are becoming higher and higher. As an important part of the substation, the grounding system is of great significance to ensure the normal operation of the power system and personal safety. Therefore, demand analysis of the grounding standard system is an important measure to ensure the safe and stable operation of the power system.

[0003] Traditional demand analysis methods have limitations and it is difficult to comprehensively and accurately weigh the demands of all parties. Therefore, a new demand analysis method is needed to meet the requirements of substation grounding standard system design. Summary of the invention

[0004] The present invention provides a substation grounding standard system demand analysis method, device and electronic equipment, which can provide comprehensive guidance for the design of the substation grounding standard system, ensure the scientificity, rationality and innovation of the grounding system, and improve the performance and safety of the grounding system.

[0005] In a first aspect, a method for analyzing the requirements of a substation grounding standard system is provided, including:

[0006] Identify the demand data of the substation grounding standard system and obtain a preset number of key requirements;

[0007] The KANO model is used to divide the attributes of a preset number of key requirements, and the demand classification results under each demand attribute are obtained. The demand attributes include attractive attributes, expected attributes, necessary attributes, indifferent attributes, reverse attributes, and suspicious attributes;

[0008] Generate an AHP hierarchical structure model of indicator weights under each demand attribute based on the demand classification results;

[0009] Based on the AHP hierarchical structure model, the demand weight value of each demand attribute under the substation grounding standard system is calculated;

[0010] According to the demand attributes and demand weight values, a system structure diagram of the substation grounding standard system is constructed, and the system structure diagram of the substation grounding standard system is used to guide the design of the substation grounding standard system.

[0011] In a second aspect, a substation grounding standard system demand analysis device is provided, comprising:

[0012] An identification module is used to identify the demand data of the substation grounding standard system and obtain a preset number of key requirements;

[0013] The classification module is used to classify the attributes of a preset number of key requirements using the KANO model to obtain the classification results of requirements under each requirement attribute. The requirement attributes include attractive attributes, expected attributes, necessary attributes, indifferent attributes, reverse attributes, and suspicious attributes.

[0014] A generation module is used to generate an AHP hierarchical structure model of indicator weights under each demand attribute according to the demand classification results;

[0015] A calculation module, used for calculating the demand weight value of each demand attribute under the substation grounding standard system based on the AHP hierarchical structure model;

[0016] The construction module is used to construct a substation grounding standard system structure diagram according to demand attributes and demand weight values. The substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system.

[0017] According to a third aspect, an electronic device is provided, comprising: a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or its various implementations.

[0018] According to a fourth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method according to the first aspect or its various implementations.

[0019] Through the technical solution provided by the present invention, the demand data of the substation grounding standard system can be first identified to obtain a preset number of key requirements; then the KANO model is used to divide the attributes of the preset number of key requirements to obtain the demand classification results under each demand attribute, and the demand attributes include attractive attributes, expected attributes, necessary attributes, indifferent attributes, reverse attributes and suspicious attributes; then the AHP hierarchical structure model of the indicator weight under each demand attribute is generated according to the demand classification results; the demand weight value of each demand attribute under the substation grounding standard system is calculated based on the AHP hierarchical structure model; finally, according to the demand attributes and demand weight values, the substation grounding standard system structure diagram is constructed, and the substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system. The technical solution in this application, through the combination of the KANO model and the AHP method, can comprehensively and accurately analyze the needs of the relevant parties of the substation grounding standard system, not only can the demand type be identified, but also its impact on user satisfaction can be quantified, providing more accurate decision support for system design. Using the constructed substation grounding standard system structure diagram, comprehensive guidance can be provided for the design of the substation grounding standard system, ensuring the scientificity, rationality and innovation of the grounding system, improving the performance and safety of the grounding system, and promoting the sustainable development of the power industry.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory and cannot limit the present invention. Other features and advantages of the present invention will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 An application scenario diagram provided for an embodiment of the present application;

[0023] Figure 2 A flowchart of a method for analyzing the requirements of a substation grounding standard system provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the structure of a substation grounding standard system provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of a substation grounding standard system demand analysis device provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] With the continuous development and expansion of the power system, the requirements for the safety and stability of substations are becoming higher and higher. As an important part of the substation, the grounding system is of great significance to ensure the normal operation of the power system and personal safety. Therefore, demand analysis of the grounding standard system is an important measure to ensure the safe and stable operation of the power system.

[0030] Traditional demand analysis methods have limitations and it is difficult to comprehensively and accurately weigh the demands of all parties. Therefore, a new demand analysis method is needed to meet the requirements of substation grounding standard system design.

[0031] In order to solve the above technical problems, the inventive concept of the present invention is that, through the combination of the KANO model and the AHP method, the needs of stakeholders in the substation grounding standard system can be comprehensively and accurately analyzed, which can not only identify the type of needs, but also quantify its impact on user satisfaction, and provide more accurate decision support for system design. The constructed substation grounding standard system structure diagram can provide comprehensive guidance for the design of the substation grounding standard system, ensure the scientificity, rationality and innovation of the grounding system, improve the performance and safety of the grounding system, and promote the sustainable development of the power industry.

[0032] It should be understood that the technical solution of the present invention can be applied to the following scenarios, but is not limited to:

[0033] In some possible implementations, Figure 1 An application scenario diagram provided by an embodiment of the present invention, such as Figure 1 As shown, the application scenario may include an electronic device 110 and a network device 120. The electronic device 110 may establish a connection with the network device 120 via a wired network or a wireless network.

[0034] Exemplarily, the electronic device 110 may be a desktop computer, a laptop computer, a tablet computer, etc., but is not limited thereto. The network device 120 may be a terminal device or a server, but is not limited thereto. In one embodiment of the present invention, the electronic device 110 may send a request message to the network device 120, and the request message may be used to request to obtain the required data of the substation grounding standard system. Further, the electronic device 110 may receive a response message sent by the network device 120, and the response message includes the required data of the substation grounding standard system.

[0035] also, Figure 1 An electronic device 110 and a network device 120 are provided as an example, but other numbers of electronic devices and network devices may be included in practice, and the present invention is not limited thereto.

[0036] In some other possible implementations, the technical solution of the present invention may also be executed by the above-mentioned electronic device 110, or the technical solution of the present invention may also be executed by the above-mentioned network device 120, and the present invention does not limit this.

[0037] After introducing the application scenarios of the embodiments of the present invention, the technical solutions of the present invention will be described in detail below:

[0038] Figure 2 A flowchart of a method for analyzing the requirements of a substation grounding standard system provided by an embodiment of the present invention. The method can be performed as follows: Figure 1 The electronic device 110 shown in the figure performs, but is not limited to this. Figure 2 As shown, the method may include the following steps:

[0039] Step 210: Identify the demand data of the substation grounding standard system to obtain a preset number of key requirements.

[0040] In specific application scenarios, the stakeholders of the substation grounding standard system can be first identified, including power companies (including operation and management departments), construction units, equipment manufacturers and suppliers, power regulatory departments, power design units, and operation and maintenance units, etc., and then the needs of the stakeholders of the substation grounding standard system for substation-related matters are collected to obtain the demand data of the substation grounding standard system. Among them, substation-related matters may include substation operation, construction, product technical requirements and quality indicators, supervision and management, system design, operation and maintenance, and fault troubleshooting. Furthermore, the affinity diagram method can be used to organize the demand data and summarize the key requirements, which may include 25 requirements such as term definitions and safety indicators.

[0041] Step 220: Use the KANO model to classify the attributes of a preset number of key requirements to obtain the requirement classification results under each requirement attribute.

[0042] Among them, demand attributes may include attractive attributes, expected attributes, essential attributes, indifferent attributes, reverse attributes, and suspicious attributes.

[0043] For the embodiments of the present disclosure, a KANO questionnaire can be designed based on each key requirement, according to the five-point scale of "very satisfied", "reluctantly accepted", "indifferent", "should be", and "very dissatisfied", with two positive and negative questions. The designed KANO questionnaire is distributed to the determined groups of stakeholders. After collecting the questionnaires, the questionnaires are preliminarily screened to eliminate invalid questionnaires (such as incomplete, logically contradictory, and obviously randomly filled questionnaires). The questionnaire score of each key requirement can then be calculated based on the KANO questionnaire, and the demand attributes of each key requirement can be divided according to the questionnaire score. After completing the attribute division of a preset number of key requirements, the demand classification results under each demand attribute can be obtained.

[0044] Among them, as shown in Table 1, the KANO model classification evaluation comparison table calculates the questionnaire score of each key requirement based on the KANO questionnaire, and divides the demand attributes of each key requirement according to the questionnaire score.

[0045] Table 1. KANO model classification evaluation comparison table

[0046]

[0047] Among them, A represents attractive attribute; O represents expected attribute; M represents necessary attribute; I represents indifferent attribute; R represents reverse attribute; Q represents suspicious attribute.

[0048] Accordingly, for the embodiment of the present disclosure, the step 220 of dividing the preset number of key requirements by attributes to obtain the requirement classification results under each requirement attribute may include the following steps:

[0049] Step 220 - 1 , set up a questionnaire with two positive and negative questions for each key requirement, and the questionnaire options include very dissatisfied, should be, don't care, reluctantly accept, and very satisfied.

[0050] Step 230 - 2 : Determine the questionnaire score for each key requirement based on the questionnaire survey results.

[0051] Step 220 - 3 , classify each key requirement into demand attributes according to the questionnaire score, and after completing the attribute classification of a preset number of key requirements, obtain the demand classification results under each demand attribute.

[0052] Step 230: Generate an AHP hierarchical structure model of indicator weights under each demand attribute according to the demand classification result.

[0053] Among them, the AHP hierarchical model can include the target layer, the criterion layer and the scheme layer. The target layer is used to establish the standard system of substation grounding network. The criterion layer includes basic general elements, grounding materials and device elements, planning and design elements, construction acceptance elements, and operation and maintenance elements. The scheme layer includes specific design elements under each criterion layer element. The basic general elements included in the criterion layer in the AHP hierarchical model include term definitions and basic requirements. The basic requirements include safety indicators, health indicators, simulation calculations, tests and instruments; grounding materials and device elements include the standards of main materials, auxiliary materials, connectors, and above-ground parts; planning and design elements include the standards of main grounding networks of power generation and substations, secondary system grounding, lines, power distribution, new energy, and DC grounding electrodes; construction acceptance elements include relevant standards for grounding construction and acceptance; operation and maintenance elements include standards and relevant specifications for testing, status evaluation, and defect elimination and transformation.

[0054] Step 240: Calculate the demand weight value of each demand attribute under the substation grounding standard system based on the AHP hierarchical structure model.

[0055] For the disclosed embodiment, each demand attribute is compared and scored in pairs according to the 1-9 scaling method to construct a judgment matrix, and the demand weight value of the substation grounding standard system is solved by the geometric mean algorithm, and the result consistency check is performed at the same time.

[0056] Accordingly, the calculation of the demand weight value of each demand attribute under the substation grounding standard system based on the AHP hierarchical structure model in step 240 may include the following steps:

[0057] Step 240-1: Compare and score each key requirement in the AHP hierarchical structure model in parallel according to the 1-9 scale method to construct a judgment matrix.

[0058] The construction process of the judgment matrix includes:

[0059] Construct the initial judgment matrix B:

[0060]

[0061] Table 2. Comparison table of construction of judgment matrix

[0062]

[0063] The diagonal of Table 2 is the judgment of each indicator. For example, for [Requirement Attribute 1] and [Requirement Attribute 1], the importance is 1, because the comparison between the indicator itself is definitely 1:1. For the second row and the first column, that is, the comparison between [Requirement Attribute 2] and [Requirement Attribute 1], I may think that [Requirement Attribute 2] is obviously more important than [Requirement Attribute 1], so the value can be marked as 5, and the score of [Requirement Attribute 1] over [Requirement Attribute 2] is the sum of 5, that is, 0.2. And so on, until a complete judgment matrix is ​​constructed.

[0064] The 1~9 scale method is shown in Table 3:

[0065] Table 3, 1~9 scaling method

[0066]

[0067] Step 240 - 2 : Based on the judgment matrix, the demand weight value of each demand attribute under the substation grounding standard system is solved by the geometric mean algorithm.

[0068] For the embodiment of the present disclosure, the scale product of each row in the judgment matrix may be calculated based on the judgment matrix:

[0069]

[0070] Where M i represents the scale product of the i-th row in the judgment matrix, b ij represents the audience demand indicator in the i-th row and j-th column of the judgment matrix (i.e., the matrix element), and m represents the amount of audience demand indicators contained in the judgment matrix (i.e., the number of matrix elements).

[0071] Then the geometric mean of the scaled products of each row in the judgment matrix with respect to the scaled product can be calculated:

[0072]

[0073] In the formula, is the geometric mean of the scaled products of the i-th row in the judgment matrix, M i represents the scale product of the i-th row in the judgment matrix, and m represents the amount of audience demand indicators contained in the judgment matrix (i.e., the number of matrix elements).

[0074] Furthermore, the demand weight value of each row in the judgment matrix can be calculated based on the scale product geometric mean:

[0075]

[0076] In the formula, is the demand weight value of the i-th row in the judgment matrix, is the geometric mean of the scale products of the i-th row in the judgment matrix, and m represents the number of audience demand indicators contained in the judgment matrix (i.e., the number of matrix elements).

[0077] Furthermore, the maximum eigenvalue of the judgment matrix can be calculated based on the weight matrix:

[0078]

[0079] In the formula, is the maximum eigenvalue of the judgment matrix; B Wi Represents the demand weight value obtained by the judgment matrix B The weight matrix composed of; n represents the order; is the maximum weight in the weight matrix.

[0080] Finally, the demand weight value can be checked for consistency based on the maximum characteristic root. When it is determined that the demand weight value fails the consistency check, the judgment matrix is ​​corrected, and the demand weight value is recalculated based on the corrected judgment matrix until the demand weight value passes the consistency check. The demand weight value that passes the consistency check is used as the demand weight value of each demand attribute under the substation grounding standard system.

[0081] Among them, when performing consistency test, the consistency index can be first calculated based on the maximum characteristic root:

[0082]

[0083] In the formula, CI represents the consistency index; n represents the order corresponding to the judgment matrix evaluation scale.

[0084] The consistency test value CR can then be calculated based on the consistency index CI and the average random consistency index:

[0085]

[0086] In the formula, CR is the consistency test value; CI is the consistency index; RI is the average random consistency index. Among them, the average random consistency index RI under different orders n can be shown in Table 4:

[0087] Table 4. Average random consistency index comparison table

[0088]

[0089] When CR ≤ 0.1, it is determined that the demand weight value has passed the consistency check. When CR>0.1, it is determined that the demand weight value has not passed the consistency check. At this time, it is necessary to check the judgment matrix and correct and adjust it before calculating and analyzing again.

[0090] Accordingly, the steps of the embodiment may include: calculating the scale product of each row in the judgment matrix; calculating the geometric mean of the scale products of each row in the judgment matrix with respect to the scale product; calculating the demand weight value of each row in the judgment matrix based on the geometric mean of the scale products; determining a weight matrix constructed by multiple rows of demand weight values ​​in the judgment matrix, and calculating the maximum eigenvalue of the judgment matrix based on the weight matrix; performing a consistency check on the demand weight value based on the maximum eigenvalue, and when it is determined that the demand weight value fails the consistency check, correcting the judgment matrix, and recalculating the demand weight value based on the corrected judgment matrix until the demand weight value passes the consistency check.

[0091] Step 250: construct a substation grounding standard system structure diagram according to the demand attributes and demand weight values. The substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system.

[0092] For the embodiments of the present disclosure, a standard system architecture diagram of the substation grounding can be constructed according to the demand weight values ​​and their ranking, including basic general standards, grounding material and device standards, planning and design standards, construction acceptance standards, and operation and maintenance standards. Each part is designed in detail according to the design principles to ensure the scientificity, rationality and innovation of the grounding system.

[0093] Among them, Figure 3 As shown, the structural diagram of the substation grounding standard system includes basic general standards, grounding material and device standards, planning and design standards, construction acceptance standards and operation and maintenance standards. Among them, the basic general standards include term definitions and basic requirements, the grounding material and device standards include standards for main materials, auxiliary materials, connectors and above-ground parts, the planning and design standards include standards for power generation and substation main grounding grids, secondary system grounding, lines, power distribution, new energy and DC grounding electrodes, the construction acceptance standards include relevant standards for grounding construction and acceptance, and the operation and maintenance standards include standards and relevant specifications for testing, status evaluation, fault elimination and transformation.

[0094] In summary, according to the demand analysis method of the substation grounding standard system provided by the present invention, the demand data of the substation grounding standard system can be first identified to obtain a preset number of key requirements; then the KANO model is used to divide the attributes of the preset number of key requirements to obtain the demand classification results under each demand attribute, and the demand attributes include attractive attributes, expected attributes, necessary attributes, indifferent attributes, reverse attributes and suspicious attributes; then the AHP hierarchical structure model of the indicator weight under each demand attribute is generated according to the demand classification results; the demand weight value of each demand attribute under the substation grounding standard system is calculated based on the AHP hierarchical structure model; finally, according to the demand attributes and demand weight values, the substation grounding standard system structure diagram is constructed, and the substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system. The technical solution in this application, through the combination of the KANO model and the AHP method, can comprehensively and accurately analyze the needs of stakeholders in the substation grounding standard system, not only can the demand type be identified, but also its impact on user satisfaction can be quantified, providing more accurate decision support for system design. The constructed substation grounding standard system structure diagram can provide comprehensive guidance for the design of the substation grounding standard system, ensure the scientificity, rationality and innovation of the grounding system, improve the performance and safety of the grounding system, and promote the sustainable development of the power industry.

[0095] Based on the above Figure 2 The detailed description of the requirements analysis method of the substation grounding standard system provided is as follows: Figure 4 As shown, Figure 4 FIG. 1 is a structural block diagram of a device for analyzing the requirements of a substation grounding standard system according to an exemplary embodiment. Figure 4 As shown, the device comprises:

[0096] The identification module 41 can be used to identify the demand data of the substation grounding standard system and obtain a preset number of key requirements;

[0097] The classification module 42 can be used to classify the attributes of a preset number of key requirements using the KANO model to obtain the requirements classification results under each requirement attribute, and the requirement attributes include attractive attributes, expected attributes, necessary attributes, indifferent attributes, reverse attributes and suspicious attributes;

[0098] A generation module 43, which can be used to generate an AHP hierarchical structure model of indicator weights under each demand attribute according to the demand classification result;

[0099] A calculation module 44, which can be used to calculate the demand weight value of each demand attribute under the substation grounding standard system based on the AHP hierarchical structure model;

[0100] The construction module 45 can be used to construct a substation grounding standard system structure diagram according to the demand attributes and demand weight values. The substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system.

[0101] In some embodiments of the present application, the division module 42 can be specifically used to set a questionnaire with positive and negative questions for each key requirement, and the questionnaire options include very dissatisfied, should be, don't care, reluctantly accept, and very satisfied; determine the questionnaire score of each key requirement based on the questionnaire survey results; divide the requirement attributes of each key requirement according to the questionnaire score, and after completing the attribute division of a preset number of key requirements, obtain the requirement classification results under each requirement attribute.

[0102] In some embodiments of the present application, the AHP hierarchical model includes a target layer, a criterion layer and a solution layer. The target layer is used to establish a standard system for substation grounding grids. The criterion layer includes basic general elements, grounding materials and device elements, planning and design elements, construction acceptance elements, and operation and maintenance elements. The solution layer includes specific design elements under each criterion layer element.

[0103] In some embodiments of the present application, the basic general elements include term definitions and basic requirements, the basic requirements include safety indicators, health indicators, simulation calculations, tests and instruments; grounding materials and device elements include standards for main materials, auxiliary materials, connectors, and above-ground parts; planning and design elements include standards for main grounding grids of power generation and substations, secondary system grounding, lines, power distribution, new energy, and DC grounding electrodes; construction acceptance elements include relevant standards for grounding construction and acceptance; operation and maintenance elements include standards and relevant specifications for testing, status evaluation, and defect elimination and transformation.

[0104] In some embodiments of the present application, the calculation module 44 can be specifically used to perform parallel comparison and scoring of each key demand in the AHP hierarchical model according to the 1~9 scaling method to construct a judgment matrix; based on the judgment matrix, the demand weight value of each demand attribute under the substation grounding standard system is solved by the geometric mean algorithm.

[0105] In some embodiments of the present application, the calculation module 44 can be specifically used to calculate the scale product of each row in the judgment matrix; calculate the geometric mean of the scale products of each row in the judgment matrix with respect to the scale product; calculate the demand weight value of each row in the judgment matrix based on the geometric mean of the scale products; determine the weight matrix constructed by multiple rows of demand weight values ​​in the judgment matrix, and calculate the maximum eigenvalue of the judgment matrix based on the weight matrix; perform a consistency check on the demand weight value based on the maximum eigenvalue, and when it is judged that the demand weight value fails the consistency check, correct the judgment matrix, and recalculate the demand weight value based on the corrected judgment matrix until the demand weight value passes the consistency check.

[0106] In some embodiments of the present application, the structural diagram of the substation grounding standard system includes basic general standards, grounding material and device standards, planning and design standards, construction acceptance standards and operation and maintenance standards, among which the basic general standards include term definitions and basic requirements, grounding material and device standards include standards for main materials, auxiliary materials, connectors, and above-ground parts, planning and design standards include standards for power generation and substation main grounding grids, secondary system grounding, lines, power distribution, new energy, and DC grounding electrodes, construction acceptance standards include relevant standards for grounding construction and acceptance, and operation and maintenance standards include standards and relevant specifications for testing, status evaluation, and defect elimination and transformation.

[0107] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0108] In the embodiment of the present application, the demand data of the substation grounding standard system can be first identified to obtain a preset number of key requirements; then the KANO model is used to divide the attributes of the preset number of key requirements to obtain the demand classification results under each demand attribute, and the demand attributes include attractive attributes, expected attributes, necessary attributes, indifferent attributes, reverse attributes and suspicious attributes; then the AHP hierarchical structure model of the indicator weight under each demand attribute is generated according to the demand classification results; the demand weight value of each demand attribute under the substation grounding standard system is calculated based on the AHP hierarchical structure model; finally, according to the demand attributes and demand weight values, the substation grounding standard system structure diagram is constructed, and the substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system. The technical solution in the present application, through the combination of the KANO model and the AHP method, can comprehensively and accurately analyze the requirements of the relevant parties of the substation grounding standard system, not only can the demand type be identified, but also its impact on user satisfaction can be quantified, providing more accurate decision support for system design. Using the constructed substation grounding standard system structure diagram, comprehensive guidance can be provided for the design of the substation grounding standard system, ensuring the scientificity, rationality and innovation of the grounding system, improving the performance and safety of the grounding system, and promoting the sustainable development of the power industry.

[0109] In the above text, the substation grounding standard system requirement analysis device of the embodiment of the present invention is described from the perspective of the functional module in combination with the accompanying drawings. It should be understood that the functional module can be implemented in the form of hardware, can be implemented by instructions in the form of software, and can also be implemented by a combination of hardware and software modules. Specifically, the steps of the substation grounding standard system requirement analysis method embodiment in the embodiment of the present invention can be completed by the hardware integrated logic circuit and / or software instructions in the processor, and the steps of the substation grounding standard system requirement analysis method applied in combination with the embodiment of the present invention can be directly embodied as a hardware decoding processor to execute, or a combination of hardware and software modules in the decoding processor to execute. Optionally, the software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the above-mentioned substation grounding standard system requirement analysis method embodiment in combination with its hardware.

[0110] Figure 5 It is a schematic block diagram of an electronic device 500 according to an embodiment of the present invention.

[0111] like Figure 5 As shown, the electronic device 500 may include:

[0112] The memory 510 and the processor 520, the memory 510 is used to store the computer program and transmit the program code to the processor 520. In other words, the processor 520 can call and run the computer program from the memory 510 to implement the method in the embodiment of the present invention.

[0113] For example, the processor 520 may be configured to execute the above method embodiments according to instructions in the computer program.

[0114] In some embodiments of the present invention, the processor 520 may include but is not limited to:

[0115] General-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0116] In some embodiments of the present invention, the memory 510 includes but is not limited to:

[0117] Volatile memory and / or non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct memory bus random access memory (Direct Rambus RAM, DR RAM).

[0118] In some embodiments of the present invention, the computer program may be divided into one or more modules, which are stored in the memory 510 and executed by the processor 520 to complete the method provided by the present invention. The one or more modules may be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program in the controller.

[0119] like Figure 5 As shown, the electronic device 500 may further include:

[0120] The transceiver 530 may be connected to the processor 520 or the memory 510 .

[0121] The processor 520 may control the transceiver 530 to communicate with other devices, specifically, to send data to other devices or receive data sent by other devices. The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

[0122] It should be understood that the various components in the electronic device are connected via a bus system, wherein the bus system includes not only a data bus but also a power bus, a control bus and a status signal bus.

[0123] The present invention also provides a computer storage medium having a computer program stored thereon, which, when executed by a computer, enables the computer to perform the method of the above method embodiment. In other words, an embodiment of the present invention also provides a computer program product containing instructions, which, when executed by a computer, enables the computer to perform the method of the above method embodiment.

[0124] When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integration. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., a solid-state drive (Solid State Disk, SSD)), etc.

[0125] Those skilled in the art will appreciate that the modules and algorithm steps of each example described in conjunction with the embodiments applied herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0126] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the module is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0127] The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. For example, each functional module in each embodiment of the present application may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

[0128] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in this application, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for analyzing the requirements of a substation grounding standard system, characterized in that: include: Identify the demand data of the substation grounding standard system and obtain a preset number of key requirements; Using the KANO model to divide the preset number of key requirements into different attributes, and obtaining the requirements classification results under each requirement attribute, wherein the requirement attributes include attractive attributes, expected attributes, essential attributes, indifferent attributes, reverse attributes, and suspicious attributes; Generate an AHP hierarchical structure model of indicator weights under each demand attribute according to the demand classification result; Calculate the demand weight value of each demand attribute under the substation grounding standard system based on the AHP hierarchical structure model; A substation grounding standard system structure diagram is constructed according to the demand attributes and the demand weight values, and the substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system.

2. The method according to claim 1, characterized in that: The KANO model is used to classify the preset number of key requirements by attributes to obtain the requirements classification results under each requirement attribute, including: A questionnaire with two positive and negative questions was set for each of the key needs, with the options including very dissatisfied, should be, indifferent, reluctantly accepted, and very satisfied; Determine a questionnaire score for each of the key requirements based on the questionnaire survey results; The demand attributes of each of the key demands are divided according to the questionnaire score, and after the attribute division of the preset number of key demands is completed, the demand classification results under each demand attribute are obtained.

3. The method according to claim 1, characterized in that The AHP hierarchical model includes a target layer, a criterion layer and a scheme layer. The target layer is used to establish a standard system for substation grounding network. The criterion layer includes basic general elements, grounding materials and device elements, planning and design elements, construction acceptance elements, and operation and maintenance elements. The scheme layer includes specific design elements under each criterion layer element.

4. The method according to claim 3, characterized in that The basic general elements include term definitions and basic requirements. The basic requirements include safety indicators, health indicators, simulation calculations, tests and instruments; the grounding materials and device elements include standards for main materials, auxiliary materials, connectors and above-ground parts; the planning and design elements include standards for main grounding grids of power generation and substations, secondary system grounding, lines, power distribution, new energy and DC grounding electrodes; the construction acceptance elements include relevant standards for grounding construction and acceptance; the operation and maintenance elements include standards and relevant specifications for testing, status evaluation, fault elimination and transformation.

5. The method according to claim 1, characterized in that The calculating the demand weight value of each demand attribute under the substation grounding standard system based on the AHP hierarchical structure model includes: According to the 1-9 scale method, each key requirement in the AHP hierarchical structure model is compared and scored in parallel, and a judgment matrix is ​​constructed; Based on the judgment matrix, the demand weight value of each demand attribute under the substation grounding standard system is solved by a geometric mean algorithm.

6. The method according to claim 5, characterized in that The step of solving the demand weight value of each demand attribute under the substation grounding standard system based on the judgment matrix by a geometric mean algorithm includes: Calculating the scale product of each row in the judgment matrix; Calculating the geometric mean of the scale products of each row in the judgment matrix with respect to the scale product; Calculate the demand weight value of each row in the judgment matrix based on the scale product geometric mean; Determine a weight matrix constructed by a plurality of rows of the demand weight values ​​in the judgment matrix, and calculate the maximum eigenvalue of the judgment matrix based on the weight matrix; The demand weight value is consistency checked based on the maximum characteristic root. When it is determined that the demand weight value fails the consistency check, the judgment matrix is ​​corrected, and the demand weight value is recalculated based on the corrected judgment matrix until the demand weight value passes the consistency check.

7. The method according to claim 1, characterized in that The structural diagram of the substation grounding standard system includes basic general standards, grounding material and device standards, planning and design standards, construction acceptance standards and operation and maintenance standards, among which the basic general standards include term definitions and basic requirements, the grounding material and device standards include standards for main materials, auxiliary materials, connectors and above-ground parts, the planning and design standards include standards for power generation and substation main grounding grids, secondary system grounding, lines, power distribution, new energy and DC grounding electrodes, the construction acceptance standards include relevant standards for grounding construction and acceptance, and the operation and maintenance standards include standards and relevant specifications for testing, status evaluation, fault elimination and transformation.

8. A substation grounding standard system demand analysis device, characterized in that: include: An identification module is used to identify the demand data of the substation grounding standard system and obtain a preset number of key requirements; A classification module is used to classify the preset number of key requirements by attributes using the KANO model to obtain the requirements classification results under each requirement attribute, wherein the requirement attributes include attractive attributes, expected attributes, essential attributes, indifferent attributes, reverse attributes, and suspicious attributes; A generating module, used for generating an AHP hierarchical structure model of the indicator weight under each demand attribute according to the demand classification result; A calculation module, used for calculating the demand weight value of each demand attribute under the substation grounding standard system based on the AHP hierarchical structure model; A construction module is used to construct a substation grounding standard system structure diagram according to the demand attributes and the demand weight values, and the substation grounding standard system structure diagram is used to guide the design of the substation grounding standard system.

9. An electronic device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: Used to store a computer program, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 7.

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