DC power distribution and utilization technical scheme evaluation method and related device

Abstract

The invention discloses a direct-current power distribution and utilization technical scheme evaluation method and a related device, and the method comprises the steps: obtaining a direct-current power distribution and utilization technical scheme in a target application scene, and obtaining a target direct-current power distribution and utilization technical scheme; determining a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical scheme; analyzing the target direct-current power distribution and utilization technical scheme according to the first evaluation system through a preset analytic hierarchy process to obtain a first evaluation result; evaluating the target direct-current power distribution and utilization technical scheme according to a second evaluation system through a preset net present value method to obtain a second evaluation result; and determining a third evaluation result for evaluating the target DC power distribution and utilization technical scheme according to the first evaluation result and the second evaluation result. According to the invention, the technology and economy of the technical scheme of DC power distribution and utilization can be evaluated accurately.

Description

Technical Field

[0001] The present application relates to the technical field of power grid technical solution evaluation, and in particular to a method for evaluating a direct current power distribution and utilization technical solution and related devices. Background Art

[0002] Compared with AC power distribution systems, DC power distribution systems have stronger active control capabilities, which can improve power supply quality, distributed power supply absorption capacity and operating efficiency. However, DC power distribution systems have disadvantages such as complex structure, high investment and difficulty in clearing fault current. Only by reasonably selecting application scenarios can the technical and economic advantages of DC power distribution systems be reflected.

[0003] Usually, the application scenarios of DC power distribution systems are divided according to the access methods and operating characteristics of distributed energy, energy storage and loads. On this basis, technical and economic evaluations are conducted on the technical solutions of DC power distribution in different application scenarios to form an accurate understanding and evaluation of specific engineering technical solutions. However, the current evaluation method of DC power distribution technical solutions is mainly based on qualitative analysis, which is too subjective and easily leads to deviations in the evaluation of the solutions, making the evaluation accuracy of the solutions low. Therefore, how to accurately evaluate the technical and economic aspects of the technical solutions for DC power distribution has become an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a method and related devices for evaluating a DC power distribution and utilization technology solution, which enable accurate and comprehensive evaluation of the technical and economic performance of the DC power distribution and utilization technology solution in a target application scenario.

[0005] In a first aspect, an embodiment of the present application provides a method for evaluating a DC power distribution technology solution, including:

[0006] Obtain a DC power distribution and utilization technology solution in a target application scenario, and obtain a target DC power distribution and utilization technology solution;

[0007] Determine a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical solution; the first evaluation system includes a plurality of first indicators; the first indicator is a technical indicator; the second evaluation system includes a plurality of second indicators; the second indicator is an economic indicator;

[0008] Analyzing the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result;

[0009] Evaluate the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result;

[0010] A third evaluation result is determined based on the first evaluation result and the second evaluation result; the third evaluation result is used to evaluate the target DC power distribution and utilization technical solution.

[0011] In a second aspect, an embodiment of the present application provides a device for evaluating a DC power distribution technology solution, including: a data acquisition module, a data determination module, a first evaluation module, and a second evaluation module, wherein:

[0012] The data acquisition module is used to acquire a DC power distribution and utilization technical solution in a target application scenario to obtain a target DC power distribution and utilization technical solution;

[0013] The data determination module is used to determine a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical solution; the first evaluation system includes a plurality of first indicators; the first indicator is a technical indicator; the second evaluation system includes a plurality of second indicators; the second indicator is an economic indicator;

[0014] The first evaluation module is used to analyze the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result;

[0015] The second evaluation module is used to evaluate the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result;

[0016] The data determination module is further used to determine a third evaluation result based on the first evaluation result and the second evaluation result; the third evaluation result is used to evaluate the target DC power distribution and utilization technical solution.

[0017] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the first aspect of the embodiment of the present application.

[0018] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute part or all of the steps described in the first aspect of the embodiment of the present application.

[0019] In a fifth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps described in the first aspect of the embodiment of the present application. The computer program product may be a software installation package.

[0020] By implementing the embodiments of the present application, a corresponding technical indicator and economic indicator evaluation system is constructed for the DC power distribution and utilization technical solution based on the technical requirements and characteristics of the target application scenario, and the hierarchical analysis method is used to evaluate the technical performance, and the net present value method is used to evaluate the economic performance. The technical evaluation and the economic evaluation are combined to obtain the final comprehensive evaluation results, thereby achieving an accurate and comprehensive evaluation of the technical and economic performance of the DC power distribution and utilization technical solution in the target application scenario, thereby providing scientific and objective decision-making support for the selection and optimization of the DC power distribution and utilization technical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0022] Figure 1 It is a flow chart of a method for evaluating a DC power distribution technology solution provided in an embodiment of the present application;

[0023] Figure 2 It is a schematic diagram of the comparison relationship between technical and economic indicators provided in the embodiment of the present application;

[0024] Figure 3 It is a structural schematic diagram of a DC power distribution technology solution evaluation device provided in an embodiment of the present application;

[0025] Figure 4 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, 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 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 creative work are within the scope of protection of this application.

[0027] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] The following is an explanation of the relevant contents, concepts, meanings, technical issues, technical solutions, beneficial effects, etc. involved in the embodiments of the present application.

[0030] The current situation survey shows that DC power distribution systems have obvious advantages over AC power distribution systems in terms of active control capabilities, power supply quality, distributed power supply absorption capacity and operating efficiency. However, DC power distribution systems also face challenges such as structural complexity, high investment costs and difficulty in clearing fault currents. Only by reasonably selecting its application scenarios can the economic advantages of DC power distribution system technology be fully utilized. Therefore, it is necessary to divide the application scenarios of DC power distribution systems in detail according to the access and operating characteristics of distributed energy, energy storage and loads. For these different scenarios, economic and technical evaluations should be conducted on typical technical solutions for DC power distribution in order to form an accurate understanding and evaluation of various engineering and technical solutions.

[0031] At present, the evaluation of DC power distribution systems mainly relies on qualitative analysis and lacks a systematic quantitative evaluation method. This makes it impossible to provide guidance for the design, evaluation, construction and operation of DC power distribution engineering technical solutions, and limits the promotion and application of this evaluation method.

[0032] See also Figure 1 , Figure 1 : is a flow chart of a method for evaluating a DC power distribution technology solution provided in an embodiment of the present application, the method includes but is not limited to the following steps:

[0033] S101. Obtain a DC power distribution and utilization technical solution in a target application scenario to obtain a target DC power distribution and utilization technical solution.

[0034] Among them, the target application scenario includes one of the following: residential areas, commercial buildings, industrial sites, data centers, transportation systems, electric vehicle charging stations, remote areas, etc., which are not limited here. Due to different power demands, load characteristics and environmental conditions in different application scenarios, different requirements are put forward for DC power distribution and utilization technical solutions. By implementing the embodiments of the present application, the DC power distribution and utilization technical solutions in the target application scenarios can be evaluated to evaluate the optimal technical solution among multiple DC power distribution and utilization technical solutions in the target application scenarios.

[0035] Among them, the DC power distribution and utilization technical solution refers to a series of technical and engineering solutions designed to meet the needs of the target application scenarios, including technologies in power generation, conversion, transmission, distribution and monitoring, while the DC power distribution and utilization system is the physical system for implementing the DC power distribution and utilization technical solution, which includes necessary hardware equipment and software control systems. The DC power distribution and utilization technical solutions formed in different application scenarios also focus on different points. For example, in data centers, technical solutions can focus on improving the efficiency and reliability of power supplies to support high-density computing loads, while in electric vehicle charging stations, more attention can be paid to fast charging capabilities and charging safety. Due to the differences in DC power distribution and utilization technical solutions caused by changes in factors such as power load characteristics, user needs, safety standards and economic costs in different application scenarios, it is necessary to evaluate the DC power distribution and utilization technical solution in a specific application scenario according to the characteristics of the application scenario to ensure that the DC power distribution and utilization technical solution can effectively meet the actual needs of the application scenario, optimize system performance, and achieve the expected economic and technical goals.

[0036] In a specific embodiment, a data center is selected as the target application scenario. As a key information and technology hub, the data center has extremely high requirements for the stability, reliability and efficiency of power supply. Therefore, a target DC power distribution and utilization technical scheme can be formulated by comprehensively considering the data center's high-density demand for energy, strict requirements for power quality, and the need for energy efficiency optimization. By evaluating the technical and economic performance of the target DC power distribution and utilization technical scheme, the evaluation result of the target DC power distribution and utilization technical scheme can be determined, and the target DC power distribution and utilization technical scheme can be optimized according to the evaluation results.

[0037] S102: Determine a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical solution.

[0038] Among them, the first evaluation system focuses on technical indicators. The first evaluation system includes multiple first indicators, and the first indicators refer to technical indicators. The first indicators include: power supply system utilization, system total power supply capacity, power supply system efficiency, power reliability, power safety, etc., which are not limited here. The second evaluation system focuses on economic indicators. The second evaluation system includes multiple second indicators, and the second indicators refer to economic indicators. The second indicators include: investment cost, operation and maintenance costs, power saving benefits within the expected service life, operation benefits, potential market competitiveness, etc., which are not limited here.

[0039] In a specific embodiment, after obtaining a target DC power distribution and utilization technical scheme with a target application scenario being a data center, a first evaluation system and a second evaluation system for specific evaluation can be determined according to the target DC power distribution and utilization technical scheme. By evaluating the target DC power distribution and utilization technical scheme through the first evaluation system, a technical evaluation result of the target DC power distribution and utilization technical scheme can be obtained. Based on the technical evaluation result, it can be determined whether the target DC power distribution and utilization technical scheme technically meets the data center's requirements for high reliability and high efficiency. By evaluating the target DC power distribution and utilization technical scheme through the second evaluation system, an economic evaluation result of the target DC power distribution and utilization technical scheme can be obtained. Based on the economic evaluation result, it can be determined whether the target DC power distribution and utilization technical scheme achieves maximum economic benefits.

[0040] Optionally, determining the first evaluation system and the second evaluation system according to the target DC power distribution and utilization technical solution may include the following steps:

[0041] Determine the technical requirements corresponding to the target application scenario to obtain the target technical requirements; select technical indicators corresponding to the target technical requirements from a preset technical indicator set to obtain the multiple first indicators; determine a first evaluation system based on the multiple first indicators; determine the characteristics corresponding to the target application scenario to obtain the characteristics of the target application scenario; select economic indicators matching the characteristics of the target application scenario from a preset economic indicator set to obtain the multiple second indicators; determine a second evaluation system based on the multiple second indicators.

[0042] Among them, the preset technical indicator set refers to a set of technical indicators established for technical evaluation, which includes but is not limited to a series of quantitative indicators that can be used to measure technical performance, such as power supply system utilization rate, system total power supply capacity, power supply system efficiency, power reliability, power safety, power quality, distributed energy penetration rate, etc. The preset economic indicator set refers to a set of economic indicators established for economic evaluation, which includes but is not limited to infrastructure cost, equipment cost, system operation and maintenance cost, basic electricity sales income, load capacity expansion income, operating loss income, power reliability income, power safety income, power quality income, distributed energy capacity expansion income, distributed energy consumption income, etc., which are quantitative indicators used to measure the economic feasibility and benefits of technical solutions.

[0043] Among them, technical requirements refer to the specific requirements for technical performance in the target application scenarios, including: energy efficiency, power quality, power safety, power reliability, environmental adaptability, scalability, etc. Application scenario characteristics refer to the characteristics of the specific usage environment that affect the economic benefits of the technical solution, including: market size, degree of competition, geographical environment, technology maturity, innovation, sustainability, etc.

[0044] In a specific embodiment, the target application scenario is a data center located in the city center. The technical requirements of this data center are mainly concentrated on high power supply reliability, excellent power quality and the ability to adapt to rapid dynamic load changes. Based on these requirements, technical indicators including power supply system efficiency, power reliability, power safety, power quality, etc. can be selected from the preset technical indicator set to form a first evaluation system. The data center is located in the city center with high electricity costs and has extremely high requirements for the continuity and reliability of power supply. Therefore, economic indicators such as equipment cost, system operation and maintenance cost, power reliability benefit, power safety benefit, power quality benefit, etc. can be selected from the preset economic indicator set to form a second evaluation system.

[0045] Through these two evaluation systems, the DC power distribution and utilization technology solutions are comprehensively evaluated and optimized according to the evaluation results, ensuring that the data center's needs for high reliability and power quality are met, improving energy efficiency and reducing operating costs, achieving a faster payback period and better long-term economic benefits.

[0046] S103: Analyze the target DC power distribution and utilization technical solution according to the first evaluation system through a preset hierarchical analysis method to obtain a first evaluation result.

[0047] Among them, the preset analytic hierarchy process is a subjective value assignment evaluation method, which improves the transparency and objectivity of decision-making by converting subjective judgment into quantitative evaluation results. In the embodiment of the present application, the preset analytic hierarchy process is used to comprehensively evaluate the target DC power distribution and utilization technology solution to determine the technical performance score of the target DC power distribution and utilization technology solution in the target application scenario.

[0048] In a specific embodiment, a corresponding weight is assigned to each first indicator in the first evaluation system through a preset hierarchical analysis method, and based on the score corresponding to each first indicator, a comprehensive technical performance score of the target DC power distribution and utilization technical solution is obtained, that is, the first evaluation result.

[0049] Optionally, analyzing the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result may include the following steps:

[0050] Obtain an indicator value corresponding to each first indicator in the first evaluation system to obtain multiple first indicator values; rate the multiple first indicator values ​​according to a preset evaluation grade reference table to obtain multiple evaluation grades; each first indicator value corresponds to an evaluation grade; obtain an evaluation score corresponding to each evaluation grade in the multiple evaluation grades to obtain multiple evaluation scores; analyze the multiple first indicators to obtain multiple weights; each weight corresponds to a first indicator; determine a target evaluation total score based on the multiple evaluation scores and the multiple weights; determine the first evaluation result based on the target evaluation total score.

[0051] Among them, the preset evaluation grade reference table is a reference table for evaluating the evaluation grade of the first indicator (technical indicator). The technical indicator value is in different value ranges, and its corresponding evaluation grade is also different. Among them, a large amount of historical data and industry reports can be collected, which include the actual measurement values ​​of technical indicators in different enterprises, different time points, and different conditions, and the collected actual measurement values ​​are statistically analyzed, including calculating the average, median, standard deviation and other statistics to determine the data distribution of the technical indicators, and cooperating with industry experts to obtain their understanding and experience judgment of the technical indicators. Finally, combined with the statistical analysis results and expert advice, different value ranges are simulated, and the overall range is divided into different evaluation grades according to the value range of the technical indicator and industry experience, such as "poor", "poor", "general", "good", and "excellent". Each grade corresponds to a specific value interval, and different evaluation grades reflect the performance level of the technical indicator. For example, the technical indicator is power supply reliability, and its value range is 0-1. When the actual measured power supply reliability is less than 0.2, its evaluation grade is "poor", and when the power supply reliability is greater than or equal to 0.2 and less than 0.4, its evaluation grade is "poor".

[0052] Specifically, the indicator value corresponding to each first indicator in the first evaluation system is obtained to obtain the first indicator value, and the multiple first indicator values ​​are rated according to the preset evaluation grade reference table to obtain multiple evaluation grades, wherein each first indicator value corresponds to an evaluation grade. Next, the evaluation score corresponding to each evaluation grade in the multiple evaluation grades is obtained to obtain multiple evaluation scores, wherein the evaluation grades from "poor" to "good" are recorded as 1-5 points, and the evaluation grades correspond to the evaluation scores one by one. Next, multiple first indicators are analyzed by a preset hierarchical analysis method to obtain multiple weights, each weight corresponding to a first indicator, and the target evaluation total score can be determined according to the multiple evaluation scores and the multiple weights, and the first evaluation result can be determined according to the target evaluation total score. The first evaluation result can be the technical score of the target DC power distribution and utilization technical solution, and the overall qualitative evaluation of the target DC power distribution and utilization technical solution can be determined according to the first evaluation result. The overall qualitative evaluation is also divided into five levels from "poor" to "good". For example, the value range of the target evaluation total score is 1-5. When the target evaluation total score is less than 1.5, the overall qualitative evaluation of the technical solution is "poor"; when the target evaluation total score is greater than or equal to 1.5 and less than 2.5, the overall qualitative evaluation of the technical solution is "poor"; when the target evaluation total score is greater than or equal to 4.5, the overall qualitative evaluation of the technical solution is "good".

[0053] Optionally, analyzing the multiple first indicators to obtain multiple weights may include the following steps:

[0054] Use a preset scaling method to scale the importance between any two first indicators among the multiple first indicators to obtain multiple scaling values; construct an importance judgment matrix based on the multiple scaling values; normalize each column in the importance judgment matrix to obtain a target standard matrix; sum each row in the target standard matrix to obtain a target reference weight matrix; normalize the target reference weight matrix to obtain multiple reference weights; determine the maximum eigenvalue root based on the importance judgment matrix and the target reference weight matrix; perform a consistency check on the importance judgment matrix based on the maximum eigenvalue root, and when the importance judgment matrix passes the consistency check, determine that the multiple reference weights are the multiple weights.

[0055] Among them, the preset scaling method is the importance 1-9 scaling method, which is used to compare two factors and obtain a scaling value, and its scaling value is used to indicate which factor is more important.

[0056] In a specific embodiment, a preset scaling method is used to scale the importance between any two first indicators among the multiple first indicators to obtain multiple scaling values, and an importance judgment matrix is ​​constructed according to the multiple scaling values. The importance judgment matrix H is shown as follows:

[0057]

[0058] Among them, H 1j A scale value that represents the importance of the first indicator compared to the jth indicator.

[0059] Furthermore, each column in the importance judgment matrix is ​​normalized to obtain the target standard matrix, each row in the target standard matrix is ​​summed to obtain the target reference weight matrix, the target reference weight matrix is ​​normalized to obtain multiple reference weights, and the maximum eigenvalue is determined according to the importance judgment matrix and the target reference weight matrix, wherein the calculation formula of the maximum eigenvalue is as follows:

[0060]

[0061] In the above formula, λ H is the maximum characteristic root; n represents the total number of n elements in the importance judgment matrix, that is, the order of the importance judgment matrix; H is the importance judgment matrix; w is the target reference weight matrix; (Hw) i represents the i-th element after the importance judgment matrix and the target reference weight matrix are multiplied; w i Represents the i-th element of the target reference weight matrix.

[0062] Furthermore, the importance judgment matrix is ​​subjected to consistency check based on the maximum characteristic root. When the importance judgment matrix passes the consistency check, the multiple reference weights are determined to be multiple weights. The consistency check method is as follows:

[0063]

[0064] Among them, λ H is the largest characteristic root; n represents the total number of n elements in the importance judgment matrix, that is, the order of the importance judgment matrix; C H is the random consistency index value, which selects the corresponding value in the random consistency index table according to the order of the importance judgment matrix. Please refer to Table 1, which is a random consistency index table:

[0065] Table 1

[0066] Degree 3 4 5 6 7 8 9 10 <![CDATA[C H ]]> 0.58 0.90 1.12 1.24 1.36 1.41 1.45 1.49

[0067] In the embodiment of the present application, the target evaluation total score can be determined according to the evaluation score corresponding to each first indicator and the weight corresponding to each first indicator, that is, the weighted sum of each first indicator is performed to obtain the final target evaluation total score.

[0068] S104. Evaluate the target DC power distribution and utilization technical solution according to the second evaluation system using a preset net present value method to obtain a second evaluation result.

[0069] Among them, the preset net present value method is an economic evaluation indicator used to evaluate the economic feasibility of a project. It is obtained by calculating the sum of the present values ​​of all cash flows during the project life cycle and then subtracting the initial investment cost of the project. The calculation formula is as follows:

[0070]

[0071] In the above formula, NPV is the net present value of the project with an evaluation period of y years; y is the project evaluation period; NFC(i) is the net cash flow of the project in the i-th year, which is obtained by deducting the total cost of the project from the total income in the i-th year; r is the discount rate, which is generally taken as 8%.

[0072] It should be noted that when the net present value is greater than 0, it means that the project has economic benefits in the entire evaluation period. Otherwise, when the net present value is less than or equal to 0, it means that the project has no economic benefits in the entire evaluation period. The larger the net present value, the stronger the economic benefits of the project.

[0073] In the embodiment of the present application, the target DC power distribution and utilization technical solution is economically evaluated according to the second evaluation system through the preset net present value method, the economic profit potential and investment recovery ability of the technical solution are quantified, and a score is given for this purpose to obtain a second evaluation result.

[0074] Optionally, the step of evaluating the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result may include the following steps:

[0075] Obtain the indicator value corresponding to each second indicator in the second evaluation system to obtain multiple second indicator values; determine the net present value of the target DC power distribution and utilization technical solution within a preset target evaluation period based on the multiple second indicator values ​​to obtain a net present value sequence; each net present value corresponds to a year; the net present value sequence is sorted by year, and the earlier the year, the higher the net present value; determine the target investment payback period of the DC power distribution and utilization technical solution based on the net present value sequence; determine the second evaluation result based on the target investment payback period.

[0076] Among them, the preset target evaluation cycle is a time set in an evaluation process to analyze and evaluate the economic benefits of a technical solution. For example, the preset target evaluation cycle can be 5 years or 10 years.

[0077] In a specific embodiment, the indicator value corresponding to each second indicator in the second evaluation system can be obtained to obtain multiple second indicator values, specifically including: economic indicators such as initial investment cost, annual operating cost, energy-saving benefit and expected equipment life. The net present value of the target DC power distribution and utilization technical solution within the preset target evaluation period is calculated based on the multiple second indicator values ​​to obtain a net present value sequence, wherein each net present value corresponds to a year, and the net present value sequence is sorted by year, the earlier the year, the higher the net present value. Then, the target investment payback period of the DC power distribution and utilization technical solution is determined based on the net present value sequence. For example, at the end of the third year, the cumulative sum of the net present value sequence exceeds the initial investment cost for the first time, indicating that the investment payback period is three years. The second evaluation result can be determined based on the target investment payback period.

[0078] Among them, the second evaluation result can be the economic score of the target DC power distribution and utilization technical solution, which evaluates the economic benefits of the project based on the length of the investment payback period. For example, a score range can be set from 0 to 100, where a shorter investment payback period corresponds to a higher score, and a longer investment payback period corresponds to a lower score. The specific score can be adjusted according to the total expected life of the project, the expected annual income stability, market risk, etc. For example, if the investment payback period is less than or equal to 2 years, the second evaluation result can be set at 90-100 points according to the actual situation. If the investment payback period is greater than 2 years and less than or equal to 3 years, the second evaluation result can be set at 80-89 points according to the actual situation.

[0079] Optionally, determining the target investment payback period of the DC power distribution and utilization technology solution according to the net present value sequence may include the following steps:

[0080] Obtain the net present value when it is positive for the first time in the net present value sequence to obtain a first net present value; obtain the year corresponding to the first net present value to obtain a target year; obtain the net present value corresponding to the year before the target year in the net present value sequence to obtain a second net present value; determine the net cash flow present value corresponding to the target year based on the first net present value and the second net present value to obtain a target net cash flow present value; determine the target investment payback period based on the target year, the second net present value and the target net cash flow present value.

[0081] In a specific embodiment, the net present value when the net present value sequence is positive for the first time can be obtained to obtain the first net present value, and the year corresponding to the first net present value can be obtained to obtain the target year. Then, the net present value corresponding to the previous year of the target year in the net present value sequence can be obtained to obtain the second net present value. The net cash flow present value corresponding to the target year can be determined based on the first net present value and the second net present value to obtain the target net cash flow present value, wherein the target net cash flow present value is obtained by subtracting the second net present value from the first net present value. Finally, the target investment payback period is determined based on the target year, the second net present value and the target net cash flow present value, wherein the target investment payback period is calculated as follows:

[0082]

[0083] For example, in a preset target evaluation cycle of 4 years, the net present value sequence obtained is [-50000, -20000, 10000, 30000]. The year when the net present value starts to become positive is 3, that is, the target year is 3, and its corresponding net present value is 10000, that is, the first net present value is 10000. The net present value in the second year is -20000, that is, the second net present value is -20000. Therefore, the target net cash flow present value is 30000, and the final target investment payback period is about 2.67 years.

[0084] Alternatively, the economic cost reduction or economic benefit increase brought about by the improvement of technical performance will help improve the overall economic performance of the system. By analyzing the impact of technical performance improvement on economic indicators, the investment payback period and investment benefits can be determined, and then the DC power distribution technology plan can be adjusted accordingly. Please refer to Figure 2 , Figure 2 It is a schematic diagram of the technical and economic indicators comparison relationship provided in the embodiment of the present application, such as Figure 2 As shown in the figure, improving power reliability can reduce losses such as unexpected downtime, and thus increase the corresponding power reliability benefits. According to the specific manifestations of each economic indicator, each cost and benefit can be divided into static and dynamic costs and static and dynamic benefits. By distinguishing between static and dynamic costs and benefits, the economic benefits of technical solutions can be analyzed more accurately. By calculating the cost savings or increased benefits caused by technical improvements, or evaluating the impact of technical improvements on the payback period, it is possible to determine which technical improvements are most cost-effective, select the technical solutions that are most likely to bring positive economic returns, and predict and evaluate the long-term economic performance of technical solutions.

[0085] S105. Determine a third evaluation result according to the first evaluation result and the second evaluation result; the third evaluation result is used to evaluate the target DC power distribution and utilization technical solution.

[0086] In a specific embodiment, the first evaluation result and the second evaluation result may be added to obtain a third evaluation result, and the third evaluation result is used to evaluate the overall technical performance and economic value of the target DC power distribution and utilization technical solution.

[0087] Optionally, determining the third evaluation result according to the first evaluation result and the second evaluation result may include the following steps:

[0088] A first weight corresponding to the first evaluation result in the target application scenario is determined according to the target DC power distribution and utilization technical solution; the first weight indicates the importance of the first evaluation system in the target application scenario; a second weight corresponding to the second evaluation result in the target application scenario is determined according to the target DC power distribution and utilization technical solution; the second weight indicates the importance of the second evaluation system in the target application scenario; a third evaluation result is determined according to the first evaluation result, the first weight, the second evaluation result and the second weight.

[0089] In a specific embodiment, a first weight corresponding to the first evaluation result in the target application scenario can be determined according to the target DC power distribution and utilization technical solution, and the first weight indicates the importance of the first evaluation system in the target application scenario. A second weight corresponding to the second evaluation result in the target application scenario can be determined according to the target DC power distribution and utilization technical solution, and the second weight indicates the importance of the second evaluation system in the target application scenario. A weighted calculation is performed based on the first evaluation result, the first weight, the second evaluation result, and the second weight to obtain a third evaluation result.

[0090] In a possible embodiment, according to the high requirements of the data center for power supply reliability, the technical evaluation results can be given a higher weight, for example 60%, while the economic benefits account for the remaining weight of 40%. The third evaluation result can be calculated based on the quantitative scores corresponding to the first evaluation result and the second evaluation result, and the weighted average according to their respective weights. The third evaluation result can comprehensively reflect the technical performance and economic value of the DC power distribution and utilization technical solution. At the same time, the third evaluation result can also be used for comparison with other technical solutions to select the optimal DC power distribution and utilization technical solution from multiple technical solutions.

[0091] In summary, by implementing the embodiments of the present application, a corresponding technical indicator and economic indicator evaluation system is constructed for the DC power distribution and utilization technical solution based on the technical requirements and characteristics of the target application scenario, and the hierarchical analysis method is used to evaluate the technical performance, and the net present value method is used to evaluate the economic performance. The technical evaluation and the economic evaluation are combined to obtain the final comprehensive evaluation results, which achieves an accurate and comprehensive evaluation of the technical and economic performance of the DC power distribution and utilization technical solution in the target application scenario, thereby providing scientific and objective decision-making support for the selection and optimization of the DC power distribution and utilization technical solution.

[0092] See also Figure 3 , Figure 3 300 is a schematic diagram of a DC power distribution and utilization technology solution evaluation device provided in an embodiment of the present application. The DC power distribution and utilization technology solution evaluation device 300 includes: a data acquisition module 301, a data determination module 302, a first evaluation module 303, and a second evaluation module 304, wherein:

[0093] The data acquisition module 301 is used to acquire a DC power distribution and utilization technology solution in a target application scenario, and obtain a target DC power distribution and utilization technology solution;

[0094] The data determination module 302 is used to determine a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical solution; the first evaluation system includes a plurality of first indicators; the first indicator is a technical indicator; the second evaluation system includes a plurality of second indicators; the second indicator is an economic indicator;

[0095] The first evaluation module 303 is used to analyze the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result;

[0096] The second evaluation module 304 is used to evaluate the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result;

[0097] The data determination module 302 is further used to determine a third evaluation result according to the first evaluation result and the second evaluation result; the third evaluation result is used to evaluate the target DC power distribution and utilization technical solution.

[0098] Optionally, in determining the first evaluation system and the second evaluation system according to the target DC power distribution and utilization technical solution, the data determination module 302 is further specifically used to:

[0099] Determine the technical requirements corresponding to the target application scenario to obtain the target technical requirements;

[0100] Selecting technical indicators corresponding to the target technical requirements from a preset technical indicator set to obtain the plurality of first indicators;

[0101] Determining a first evaluation system according to the plurality of first indicators;

[0102] Determine the characteristics corresponding to the target application scenario to obtain the characteristics of the target application scenario;

[0103] Selecting economic indicators that match the characteristics of the target application scenario from a preset economic indicator set to obtain the plurality of second indicators;

[0104] A second evaluation system is determined according to the plurality of second indicators.

[0105] Optionally, in the aspect of analyzing the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result, the first evaluation module 303 is further specifically used for:

[0106] Obtaining an indicator value corresponding to each first indicator in the first evaluation system to obtain a plurality of first indicator values;

[0107] Rating the plurality of first indicator values ​​according to a preset evaluation grade reference table to obtain a plurality of evaluation grades; each first indicator value corresponds to an evaluation grade;

[0108] Obtaining an evaluation score corresponding to each evaluation level in the multiple evaluation levels to obtain multiple evaluation scores;

[0109] Analyze the multiple first indicators to obtain multiple weights; each weight corresponds to a first indicator;

[0110] Determine a target total evaluation score according to the multiple evaluation scores and the multiple weights;

[0111] The first evaluation result is determined according to the target evaluation total score.

[0112] Optionally, in the aspect of analyzing the plurality of first indicators to obtain a plurality of weights, the first evaluation module 303 is further specifically configured to:

[0113] Using a preset scaling method to scale the importance between any two first indicators among the plurality of first indicators to obtain a plurality of scaling values;

[0114] constructing an importance judgment matrix according to the multiple scale values;

[0115] Normalizing each column in the importance judgment matrix to obtain a target standard matrix;

[0116] Summing each row in the target standard matrix to obtain a target reference weight matrix;

[0117] Normalizing the target reference weight matrix to obtain multiple reference weights;

[0118] Determine the maximum eigenvalue according to the importance judgment matrix and the target reference weight matrix;

[0119] A consistency check is performed on the importance judgment matrix based on the maximum eigenvalue root, and when the importance judgment matrix passes the consistency check, the multiple reference weights are determined to be the multiple weights.

[0120] Optionally, in the aspect of evaluating the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result, the second evaluation module 304 is further specifically used to:

[0121] Obtaining an indicator value corresponding to each second indicator in the second evaluation system to obtain a plurality of second indicator values;

[0122] Determine the net present value of the target DC power distribution and utilization technical solution within a preset target evaluation period according to the multiple second indicator values, and obtain a net present value sequence; each net present value corresponds to a year; the net present value sequence is sorted by year, and the earlier the year, the higher the net present value;

[0123] Determine the target investment payback period of the DC power distribution technology solution according to the net present value sequence;

[0124] A second evaluation result is determined according to the target investment payback period.

[0125] Optionally, in determining the target investment payback period of the DC power distribution and utilization technology solution according to the net present value sequence, the second evaluation module 304 is further specifically used to:

[0126] Obtaining the net present value when the net present value sequence is positive for the first time, to obtain a first net present value;

[0127] Obtain the year corresponding to the first net present value to obtain a target year;

[0128] Obtaining the net present value corresponding to the year before the target year in the net present value sequence to obtain a second net present value;

[0129] Determine the net cash flow present value corresponding to the target year according to the first net present value and the second net present value to obtain the target net cash flow present value;

[0130] The target investment payback period is determined based on the target year, the second net present value and the target net cash flow present value.

[0131] Optionally, in determining the third evaluation result according to the first evaluation result and the second evaluation result, the data determination module 302 is further specifically configured to:

[0132] Determine, according to the target DC power distribution and utilization technical solution, a first weight corresponding to the first evaluation result in the target application scenario; the first weight represents the importance of the first evaluation system in the target application scenario;

[0133] Determine, according to the target DC power distribution and utilization technical solution, a second weight corresponding to the second evaluation result in the target application scenario; the second weight represents the importance of the second evaluation system in the target application scenario;

[0134] A third evaluation result is determined according to the first evaluation result, the first weight, the second evaluation result, and the second weight.

[0135] The DC power distribution and utilization technical solution evaluation device 300 described in the present application can construct a corresponding technical indicator and economic indicator evaluation system for the DC power distribution and utilization technical solution according to the technical requirements and characteristics of the target application scenario, and use the hierarchical analysis method to evaluate the technical performance and the net present value method to evaluate the economic performance. The technical evaluation and the economic evaluation are combined to obtain the final comprehensive evaluation result, thereby achieving an accurate and comprehensive evaluation of the technical and economic performance of the DC power distribution and utilization technical solution in the target application scenario, thereby providing scientific and objective decision-making support for the selection and optimization of the DC power distribution and utilization technical solution.

[0136] See also Figure 4 , Figure 4 : is a structural diagram of an electronic device provided in an embodiment of the present application, the electronic device may include a processor, a memory, a communication interface and one or more programs, the processor, the memory and the communication interface may be interconnected through a bus; the one or more programs are stored in the memory and configured to be executed by the processor; in the embodiment of the present application, the program includes instructions for executing the following steps:

[0137] Obtain a DC power distribution and utilization technology solution in a target application scenario, and obtain a target DC power distribution and utilization technology solution;

[0138] Determine a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical solution; the first evaluation system includes a plurality of first indicators; the first indicator is a technical indicator; the second evaluation system includes a plurality of second indicators; the second indicator is an economic indicator;

[0139] Analyzing the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result;

[0140] Evaluate the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result;

[0141] A third evaluation result is determined based on the first evaluation result and the second evaluation result; the third evaluation result is used to evaluate the target DC power distribution and utilization technical solution.

[0142] The electronic equipment described in this application can construct a corresponding technical indicator and economic indicator evaluation system for the DC power distribution and utilization technical solution based on the technical requirements and characteristics of the target application scenario, and use the hierarchical analysis method to evaluate the technical performance and the net present value method to evaluate the economic performance. The technical evaluation and the economic evaluation are combined to obtain the final comprehensive evaluation results, thereby achieving an accurate and comprehensive evaluation of the technical and economic performance of the DC power distribution and utilization technical solution in the target application scenario, thereby providing scientific and objective decision-making support for the selection and optimization of the DC power distribution and utilization technical solution.

[0143] An embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables a computer to execute part or all of the steps of any method described in the above method embodiments, and the above computer includes an electronic device.

[0144] The embodiment of the present application also provides a computer program product, the computer program product includes a non-transitory computer-readable storage medium storing a computer program, the computer program is operable to cause a computer to execute some or all of the steps of any method described in the method embodiment. The computer program product may be a software installation package, and the computer includes an electronic device.

[0145] Those skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by computer programs to instruct related hardware, and the programs can be stored in computer-readable storage media. When the programs are executed, they can include the processes of the above-mentioned method embodiments. The aforementioned storage media include: ROM or random access memory RAM, magnetic disk or optical disk and other media that can store program codes.

[0146] The steps of the method or algorithm described in the embodiments of the present application can be implemented in hardware or by executing software instructions by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disks, mobile hard disks, read-only compact disks (CD-ROMs) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a terminal device or a management device. Of course, the processor and the storage medium can also be present in a terminal device or a management device as discrete components.

[0147] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, 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 described in the embodiments of the present application 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 device. 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 to another 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. 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 integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0148] The modules / units included in the devices and products described in the above embodiments may be software modules / units or hardware modules / units, or may be partially software modules / units and partially hardware modules / units. For example, for the devices and products applied to or integrated in the chip, the modules / units included therein may all be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on the processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for the devices and products applied to or integrated in the chip module, the modules / units included therein may all be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or in different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The software programs run on the processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits. It is implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in hardware such as circuits; for various devices and products applied to or integrated in the terminal equipment, the various modules / units contained therein can be implemented in hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal equipment, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal equipment, and the remaining (if any) modules / units can be implemented in hardware such as circuits.

[0149] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation method of the embodiments of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A method for evaluating a DC power distribution technology solution, characterized in that: The method comprises: Obtain a DC power distribution and utilization technology solution in a target application scenario, and obtain a target DC power distribution and utilization technology solution; Determine a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical solution; the first evaluation system includes a plurality of first indicators; the first indicator is a technical indicator; the second evaluation system includes a plurality of second indicators; the second indicator is an economic indicator; Analyzing the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result; Evaluate the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result; A third evaluation result is determined based on the first evaluation result and the second evaluation result; the third evaluation result is used to evaluate the target DC power distribution and utilization technical solution.

2. The method according to claim 1, characterized in that Determining the first evaluation system and the second evaluation system according to the target DC power distribution and utilization technical solution includes: Determine the technical requirements corresponding to the target application scenario to obtain the target technical requirements; Selecting technical indicators corresponding to the target technical requirements from a preset technical indicator set to obtain the plurality of first indicators; Determining a first evaluation system according to the plurality of first indicators; Determine the characteristics corresponding to the target application scenario to obtain the characteristics of the target application scenario; Selecting economic indicators that match the characteristics of the target application scenario from a preset economic indicator set to obtain the plurality of second indicators; A second evaluation system is determined according to the plurality of second indicators.

3. The method according to claim 1 or 2, characterized in that The target DC power distribution and utilization technical solution is analyzed according to the first evaluation system by using the preset hierarchical analysis method to obtain a first evaluation result, including: Obtaining an indicator value corresponding to each first indicator in the first evaluation system to obtain a plurality of first indicator values; Rating the plurality of first indicator values ​​according to a preset evaluation grade reference table to obtain a plurality of evaluation grades; each first indicator value corresponds to an evaluation grade; Obtaining an evaluation score corresponding to each evaluation level in the multiple evaluation levels to obtain multiple evaluation scores; Analyze the multiple first indicators to obtain multiple weights; each weight corresponds to a first indicator; Determine a target total evaluation score according to the multiple evaluation scores and the multiple weights; The first evaluation result is determined according to the target evaluation total score.

4. The method according to claim 3, characterized in that The analyzing the multiple first indicators to obtain multiple weights includes: Using a preset scaling method to scale the importance between any two first indicators among the plurality of first indicators to obtain a plurality of scaling values; constructing an importance judgment matrix according to the multiple scale values; Normalizing each column in the importance judgment matrix to obtain a target standard matrix; Summing each row in the target standard matrix to obtain a target reference weight matrix; Normalizing the target reference weight matrix to obtain multiple reference weights; Determine the maximum eigenvalue according to the importance judgment matrix and the target reference weight matrix; A consistency check is performed on the importance judgment matrix based on the maximum eigenvalue root, and when the importance judgment matrix passes the consistency check, the multiple reference weights are determined to be the multiple weights.

5. The method according to claim 1 or 2, characterized in that: The target DC power distribution and utilization technical solution is evaluated according to the second evaluation system by using the preset net present value method to obtain a second evaluation result, including: Obtaining an indicator value corresponding to each second indicator in the second evaluation system to obtain a plurality of second indicator values; Determine the net present value of the target DC power distribution and utilization technical solution within a preset target evaluation period according to the multiple second indicator values, and obtain a net present value sequence; each net present value corresponds to a year; the net present value sequence is sorted by year, and the earlier the year, the higher the net present value; Determine the target investment payback period of the DC power distribution technology solution according to the net present value sequence; A second evaluation result is determined according to the target investment payback period.

6. The method according to claim 5, characterized in that Determining the target investment payback period of the DC power distribution technology solution according to the net present value sequence includes: Obtaining the net present value when the net present value sequence is positive for the first time, to obtain a first net present value; Obtain the year corresponding to the first net present value to obtain a target year; Obtaining the net present value corresponding to the year before the target year in the net present value sequence to obtain a second net present value; Determine the net cash flow present value corresponding to the target year according to the first net present value and the second net present value to obtain the target net cash flow present value; The target investment payback period is determined based on the target year, the second net present value and the target net cash flow present value.

7. The method according to any one of claims 1 to 6, characterized in that: The determining a third evaluation result according to the first evaluation result and the second evaluation result includes: Determine, according to the target DC power distribution and utilization technical solution, a first weight corresponding to the first evaluation result in the target application scenario; the first weight represents the importance of the first evaluation system in the target application scenario; Determine, according to the target DC power distribution and utilization technical solution, a second weight corresponding to the second evaluation result in the target application scenario; the second weight represents the importance of the second evaluation system in the target application scenario; A third evaluation result is determined according to the first evaluation result, the first weight, the second evaluation result, and the second weight.

8. A DC power distribution technology scheme evaluation device, characterized in that: The device comprises: a data acquisition module, a data determination module, a first evaluation module, and a second evaluation module, wherein: The data acquisition module is used to acquire a DC power distribution and utilization technical solution in a target application scenario to obtain a target DC power distribution and utilization technical solution; The data determination module is used to determine a first evaluation system and a second evaluation system according to the target DC power distribution and utilization technical solution; the first evaluation system includes a plurality of first indicators; the first indicator is a technical indicator; the second evaluation system includes a plurality of second indicators; the second indicator is an economic indicator; The first evaluation module is used to analyze the target DC power distribution and utilization technical solution according to the first evaluation system by using a preset hierarchical analysis method to obtain a first evaluation result; The second evaluation module is used to evaluate the target DC power distribution and utilization technical solution according to the second evaluation system by using a preset net present value method to obtain a second evaluation result; The data determination module is further used to determine a third evaluation result based on the first evaluation result and the second evaluation result; the third evaluation result is used to evaluate the target DC power distribution and utilization technical solution.

9. An electronic device, characterized in that: include: A processor, a memory, a communication interface, and one or more programs; The one or more programs are stored in the memory and configured to be executed by the processor, the programs comprising instructions for executing the steps in the method according to 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, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to perform the method according to any one of claims 1 to 7.

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