Decision-making method for technical improvement and overhaul of power grid equipment and related device

Abstract

The invention provides a decision-making method for technical improvement and overhaul of power grid equipment and a related device, and the method comprises the steps: determining the whole life cycle cost and the remaining service life of target equipment, carrying out the calculation of a net present value based on the whole life cycle cost and the remaining service life, obtaining the original annual average cost present value of technical improvement and overhaul, determining a cost price checking coefficient, and carrying out the calculation of the net present value. Correcting the technical improvement and overhaul original annual average cost present value based on the cost price checking coefficient to obtain a corrected technical improvement and overhaul annual average cost present value; determining an income pre-estimation verification value, and adding the original annual average cost present value of renovation and overhaul to the corrected annual average cost present value of technical renovation and overhaul to obtain a technical renovation and overhaul permitted income pre-estimation verification value; and inputting the technical renovation and overhaul permitted income pre-estimation verification value into the technical renovation and overhaul strategy decision model to obtain a technical renovation and overhaul strategy decision result output by the technical renovation and overhaul strategy decision model. The technical improvement and overhaul strategy decision is matched with the supervision requirement, plan guidance is followed, and the decision accuracy is high.

Description

Technical Field

[0001] The present disclosure relates to the technical field of enterprise asset management, and in particular to a decision-making method for technical transformation and overhaul of power grid equipment and related devices. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the disclosure that are recited in the claims. No description herein is admitted to be prior art by inclusion in this section.

[0003] The technical transformation and overhaul decision-making technology for power grid equipment is a method that comprehensively considers the impact of factors such as the natural life of the equipment, adverse operating conditions, and status evaluation on the equipment. This technology sets weights for different influencing factors and calculates the comprehensive technical life of the equipment, which is used as the decision-making basis for technical transformation and overhaul. This method can quantitatively reflect the health status of equipment in the substation and provide a direct basis for decision-makers to select the technical transformation and overhaul objects for the entire station and line.

[0004] However, related technologies suffer from problems such as mismatch between decisions and regulatory requirements, deviation from plan orientation, and low decision accuracy. Summary of the invention

[0005] In view of this, the purpose of the present disclosure is to propose a decision-making method and related devices for technical transformation and overhaul of power grid equipment, which at least solves one of the technical problems in the related technology to a certain extent.

[0006] Based on the above purpose, the first aspect of the exemplary embodiment of the present disclosure provides a decision method for technical transformation and overhaul of power grid equipment, which is applied to a server, and the method includes:

[0007] Determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation, and obtain the present value of the original annual average cost of the technical transformation;

[0008] Determine the overhaul full life cycle cost and the remaining useful life of the overhaul of the target equipment, perform a net present value calculation based on the overhaul full life cycle cost and the remaining useful life of the overhaul, and obtain the present value of the original annual average cost of the overhaul;

[0009] Determine the technical transformation cost valuation coefficient, and amend the original average annual cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain the amended average annual cost present value of the technical transformation;

[0010] Determine the overhaul cost valuation coefficient, and correct the original average annual cost present value of the overhaul based on the overhaul cost valuation coefficient to obtain a corrected average annual cost present value of the overhaul;

[0011] Determine the estimated approved value of the permitted income of the technological transformation, add the present value of the average annual cost of the revised technological transformation to the estimated approved value of the permitted income of the technological transformation, and obtain the estimated approved value of the permitted income of the technological transformation;

[0012] Determine the approved estimated value of overhaul revenue, add the present value of the modified average annual cost of overhaul to the approved estimated value of overhaul revenue, and obtain the approved estimated value of overhaul revenue;

[0013] The estimated and approved value of the permissible income from the technical transformation and the estimated and approved value of the permissible income from the overhaul are input into a technical transformation and overhaul strategy decision model to obtain a technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

[0014] Based on the same inventive concept, the second aspect of the exemplary embodiment of the present disclosure provides a decision-making device for technical transformation and overhaul of power grid equipment, including:

[0015] The original cost determination module of the technical transformation is configured to determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, and perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation to obtain the original annual average cost present value of the technical transformation;

[0016] The overhaul original cost determination module is configured to determine the overhaul full life cycle cost and the overhaul remaining useful life of the target equipment, and perform a net present value calculation based on the overhaul full life cycle cost and the overhaul remaining useful life to obtain the overhaul original annual average cost present value;

[0017] A technical transformation revised cost determination module is configured to determine a technical transformation cost valuation coefficient, and to revise the original annual average cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain a revised annual average cost present value of the technical transformation;

[0018] An overhaul revised cost determination module is configured to determine an overhaul cost valuation coefficient, and to revise the original annual average cost present value of the overhaul based on the overhaul cost valuation coefficient to obtain a revised annual average cost present value of the overhaul;

[0019] A technical transformation income determination module is configured to determine an estimated approved value of the permitted income of the technical transformation, and add the present value of the corrected annual average cost of the technical transformation to the estimated approved value of the permitted income of the technical transformation to obtain the estimated approved value of the permitted income of the technical transformation;

[0020] An overhaul income determination module is configured to determine an estimated approved value of an overhaul allowable income, add the present value of the modified overhaul annual average cost to the estimated approved value of the overhaul allowable income, and obtain the estimated approved value of the overhaul allowable income;

[0021] The decision result determination module is configured to input the estimated and approved value of the permitted technical transformation income and the estimated and approved value of the permitted overhaul income into the technical transformation and overhaul strategy decision model to obtain the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

[0022] Based on the same inventive concept, a third aspect of the exemplary embodiment of the present disclosure provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method described in the first aspect is implemented.

[0023] Based on the same inventive concept, a fourth aspect of the exemplary embodiments of the present disclosure provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the method described in the first aspect.

[0024] Based on the same inventive concept, a fifth aspect of the exemplary embodiments of the present disclosure provides a computer program product, including computer program instructions. When the computer program instructions are executed on a computer, the computer executes the method described in the first aspect.

[0025] It can be seen from the above that the embodiment of the present disclosure provides a decision-making method for technical transformation and overhaul of power grid equipment and a related device, the method comprising:

[0026] Determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation, and obtain the original annual average cost present value of the technical transformation, determine the full life cycle cost of the overhaul of the target equipment and the remaining useful life of the overhaul, perform a net present value calculation based on the full life cycle cost of the overhaul and the remaining useful life of the overhaul, and obtain the original annual average cost present value of the overhaul, determine the technical transformation cost pricing coefficient, and correct the original annual average cost present value of the technical transformation based on the technical transformation cost pricing coefficient to obtain the corrected annual average cost present value of the technical transformation, determine the overhaul cost pricing coefficient, and correct the original annual average cost present value of the technical transformation based on the overhaul cost pricing coefficient. The original average annual cost present value of the overhaul is corrected to obtain the corrected average annual cost present value of the overhaul, the estimated approved value of the permitted income of the technical transformation is determined, the corrected average annual cost present value of the technical transformation is added to the permitted income estimated approved value of the technical transformation, the permitted income estimated approved value of the technical transformation is obtained, the permitted income estimated approved value of the overhaul is determined, the corrected average annual cost present value of the overhaul is added to the permitted income estimated approved value of the overhaul, the permitted income estimated approved value of the overhaul is obtained, the permitted income estimated approved value of the technical transformation and the permitted income estimated approved value of the overhaul are input into the technical transformation and overhaul strategy decision model, and the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model is obtained. The decision output by the technical transformation and overhaul strategy decision model disclosed in the present invention matches the regulatory requirements, follows the planning guidance, and has a high decision accuracy rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of an application scenario of a decision-making method for technical transformation and overhaul of power grid equipment provided by an exemplary embodiment of the present disclosure;

[0029] Figure 2 A flowchart of a decision-making method for technical transformation and overhaul of power grid equipment provided by an exemplary embodiment of the present disclosure;

[0030] Figure 3 A structural schematic diagram of a decision-making device for technical transformation and overhaul of power grid equipment provided by an exemplary embodiment of the present disclosure;

[0031] Figure 4 A schematic diagram of the hardware structure of an electronic device provided for an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] It is understandable that before using the technical solutions disclosed in the embodiments of this application, the type, scope of use, usage scenarios, etc. of the personal information involved in this application should be informed to the user and the user's authorization should be obtained in an appropriate manner in accordance with relevant laws and regulations.

[0033] For example, in response to receiving an active request from a user, a prompt message is sent to the user to clearly prompt the user that the operation requested to be performed will require obtaining and using the user's personal information. Thus, the user can autonomously choose whether to provide personal information to software or hardware such as an electronic device, application, server, or storage medium that performs the operation of the technical solution of the present application according to the prompt message.

[0034] As an optional but non-limiting implementation, in response to receiving an active request from the user, the prompt information may be sent to the user in the form of a pop-up window, in which the prompt information may be presented in text form. In addition, the pop-up window may also carry a selection control for the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0035] It is understandable that the above notification and the process of obtaining user authorization are merely illustrative and do not constitute a limitation on the implementation method of the present application. Other methods that meet the relevant laws and regulations may also be applied to the implementation method of the present application.

[0036] It is understandable that the data involved in this technical solution (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and relevant provisions.

[0037] In order to make the purpose, technical solutions and advantages of the present disclosure more clear, the principles and spirit of the present disclosure will be described with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present disclosure, and are not intended to limit the scope of the present disclosure in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0038] It should be understood herein that any number of elements in the drawings is for illustration rather than limitation, and any naming is only for distinction rather than having any limiting meaning.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The article "one" or "a" before an element does not exclude the existence of multiple such elements.

[0040] The principle and spirit of the present disclosure are explained in detail below with reference to several representative embodiments of the present disclosure.

[0041] As described in the background technology, in the relevant technologies, there are problems such as mismatch between decision-making and management requirements, deviation from plan orientation, and low decision-making accuracy. Specifically, the reform of transmission and distribution prices is being deepened, and power grid cost auditing and price verification are being carried out according to the supervision cycle. External supervision such as cost auditing and investment review is also becoming more stringent, and strict requirements are put forward for the operation and management of power grid enterprises, especially investment planning, asset management, cost and expense control, etc. In the face of changes in the business model of power grid enterprises under the reform of transmission and distribution prices, power grid enterprises should take the initiative to carry out research on the reform plan of transmission and distribution prices and improve management, and actively study and think about the strategic decision-making technology and effective application of technical transformation and overhaul projects that adapt to the changes in the reform of transmission and distribution prices.

[0042] The management of power grid enterprise technical transformation and overhaul projects is an extremely important systematic work in the operation and maintenance of power grid projects. High-quality power grid technical transformation and overhaul project management can not only improve the level of power grid maintenance and overhaul, but more importantly, it can effectively eliminate safety hazards and faults in the operation of the power grid, improve the stability and sustainability of the power grid operation, and thus increase the economic benefits of power grid enterprises.

[0043] The early decision-making stage of a project mainly includes key links such as project demand submission, project proposal and budget preparation, project proposal and budget approval, project reserve storage, and project funding plan demand declaration. These links involve the establishment of project implementation technical solutions, technical transformation or overhaul equipment scope, project implementation plan, and the corresponding approval process.

[0044] Technical transformation and overhaul mainly include two aspects: technical transformation and regular equipment repair. Technical transformation mainly refers to the introduction of advanced power technology, updating the power network, equipment and technology application. Equipment overhaul is to timely update and regularly repair old and aging equipment to extend the service life of the equipment. Technical transformation and overhaul is crucial to the long-term and stable development of power grid enterprises. It can not only improve corporate benefits, but also ensure the safety of the power system.

[0045] However, with the reform of the power market and the development of grid technology, the regulatory authorities are constantly updating their requirements for the approval, execution and supervision of grid technical transformation and overhaul projects. Grid companies may not be able to adapt to these changes in a timely manner during the decision-making process, resulting in the decision-making process not being in line with the latest regulatory requirements. The internal management mechanism of grid companies may be inconsistent with external regulatory requirements. For example, the internal project approval process of the company may be too cumbersome or not transparent enough, which is different from the simple, efficient and transparent management process required by the regulatory authorities.

[0046] When making decisions on technical transformation and overhaul projects, power grid companies may not have a deep understanding of macro plans such as related energy plans and environmental protection plans, resulting in project decisions deviating from plan orientation. When selecting and prioritizing projects, companies may pay more attention to short-term benefits and ignore long-term strategic planning and plan orientation. For example, they overemphasize cost savings and ignore the application of new energy technologies and energy conservation and emission reduction goals.

[0047] The data relied on in the decision-making process is of low quality, and may be incomplete, inaccurate, or untimely, which will affect the accuracy of the decision. The evaluation methods used by enterprises in project evaluation are not scientific or practical, resulting in inaccurate predictions of project costs, benefits, and risks. Due to the rapid development of power technology, enterprises may find it difficult to keep up with the pace of technological updates, resulting in the technical solutions used in decision-making being not advanced enough or outdated.

[0048] In order to solve the above problems, the present disclosure provides a decision-making method for technical transformation and overhaul of power grid equipment and a related device solution, which specifically includes:

[0049] Determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation, and obtain the original annual average cost present value of the technical transformation, determine the full life cycle cost of the overhaul of the target equipment and the remaining useful life of the overhaul, perform a net present value calculation based on the full life cycle cost of the overhaul and the remaining useful life of the overhaul, and obtain the original annual average cost present value of the overhaul, determine the technical transformation cost pricing coefficient, and correct the original annual average cost present value of the technical transformation based on the technical transformation cost pricing coefficient to obtain the corrected annual average cost present value of the technical transformation, determine the overhaul cost pricing coefficient, and correct the original annual average cost present value of the technical transformation based on the overhaul cost pricing coefficient. The original average annual cost present value of the overhaul is corrected to obtain the corrected average annual cost present value of the overhaul, the estimated approved value of the permitted income of the technical transformation is determined, the corrected average annual cost present value of the technical transformation is added to the permitted income estimated approved value of the technical transformation, the permitted income estimated approved value of the technical transformation is obtained, the permitted income estimated approved value of the overhaul is determined, the corrected average annual cost present value of the overhaul is added to the permitted income estimated approved value of the overhaul, the permitted income estimated approved value of the overhaul is obtained, the permitted income estimated approved value of the technical transformation and the permitted income estimated approved value of the overhaul are input into the technical transformation and overhaul strategy decision model, and the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model is obtained. The present disclosure can provide a comprehensive economic analysis by determining the full life cycle cost of the technical transformation and overhaul of the target equipment, including all related investment, operation, maintenance and other costs. This helps ensure that all potential long-term financial impacts are taken into account when making decisions, thereby reducing the risk of decisions not matching regulatory requirements. Accurately determining the remaining useful life of equipment after technological transformation and overhaul is critical to assessing the true value of the project. This ensures that net present value calculations reflect true future costs and benefits, helping decision makers better understand the long-term value of each option.The net present value is calculated using the full life cycle cost of technical transformation and overhaul and its remaining useful life to obtain the original annual average cost present value. This step provides a quantitative financial indicator for decision-making by discounting future cash flows to current values, which helps to improve the accuracy and objectivity of decision-making. The coefficient of the original annual average cost present value of technical transformation and overhaul is adjusted. This adjustment takes into account changes in regulatory plans and market conditions, ensuring that the decision-making results are consistent with regulatory requirements and can adapt to plan orientation. The adjusted estimated approved value of the permitted income for technical transformation and overhaul is input into the technical transformation and overhaul strategy decision model, which comprehensively considers costs, benefits and risks and outputs the technical transformation and overhaul strategy decision results. The use of this model improves the scientificity and systematicity of decision-making and reduces human bias. Through the above steps, the decision-making process becomes more data-driven and scientific, reducing reliance on a single experience judgment, thereby improving the reliability and accuracy of decisions. The entire decision-making process is constantly aligned with regulatory plans and market orientations, ensuring that decisions not only meet current regulatory requirements, but also can adapt to changes in plans and market developments, thereby reducing the risk of deviation from plan orientations.

[0050] After introducing the basic principles of the present disclosure, various non-limiting embodiments of the present disclosure are described in detail below.

[0051] refer to Figure 1 , which is a schematic diagram of an application scenario of the decision-making method for technical transformation and overhaul of power grid equipment provided by an exemplary embodiment of the present disclosure.

[0052] This application scenario includes a terminal device 101 and a server 102. The terminal device 101 and the server 102 may be connected via a wired or wireless communication network to achieve data interaction.

[0053] The terminal device 101 may be an electronic device with data transmission and multimedia input / output functions close to the user side, including but not limited to a desktop computer, a mobile phone, a mobile computer, a tablet computer, a media player, a smart wearable device, a personal digital assistant (PDA) or other electronic devices capable of realizing the above functions. The electronic device may include a processor and a display screen with a touch input function, the display screen is used to present a graphical user interface, the graphical user interface can display an application interface, and the processor is used to process application data, generate a graphical user interface, and control the display of the graphical user interface on the display screen.

[0054] Server 102 can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers. It can also be a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN (Content Delivery Network), as well as big data and artificial intelligence platforms.

[0055] In some exemplary embodiments, the decision-making method for technical renovation and overhaul of power grid equipment may be run on the terminal device 101 or the server 102 .

[0056] When the decision-making method for technical renovation and overhaul of power grid equipment runs on the server 102 , the server 102 is used to provide a decision-making service for technical renovation and overhaul of power grid equipment to the user of the terminal device 101 .

[0057] The server 102 determines the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, and the server 102 performs a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation to obtain the present value of the original annual average cost of the technical transformation;

[0058] The server 102 determines the overhaul full life cycle cost and the remaining useful life of the overhaul of the target equipment, and the server 102 performs a net present value calculation based on the overhaul full life cycle cost and the remaining useful life of the overhaul to obtain the present value of the original annual average cost of the overhaul;

[0059] The server 102 determines a technical transformation cost valuation coefficient, and the server 102 corrects the original average annual cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain a corrected average annual cost present value of the technical transformation;

[0060] The server 102 determines an overhaul cost valuation coefficient, and the server 102 corrects the original average annual cost present value of the overhaul based on the overhaul cost valuation coefficient to obtain a corrected average annual cost present value of the overhaul;

[0061] The server 102 determines the estimated approved value of the permitted income of the technological transformation, and the server 102 adds the present value of the modified average annual cost of the technological transformation to the estimated approved value of the permitted income of the technological transformation to obtain the estimated approved value of the permitted income of the technological transformation;

[0062] The server 102 determines the estimated approved value of the overhaul permitted income, and the server 102 adds the present value of the modified overhaul annual average cost to the estimated approved value of the overhaul permitted income to obtain the estimated approved value of the overhaul permitted income;

[0063] The server 102 inputs the estimated and approved value of the permissible income of the technical transformation and the estimated and approved value of the permissible income of the overhaul into the technical transformation and overhaul strategy decision model, and obtains the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

[0064] It should be noted that the above application scenarios are only shown to facilitate understanding of the spirit and principle of the present disclosure, and the embodiments of the present disclosure are not limited in this respect. On the contrary, the embodiments of the present disclosure can be applied to any applicable scenario.

[0065] refer to Figure 2 , a decision-making method for technical transformation and overhaul of power grid equipment is applied to a server, and the method comprises the following steps:

[0066] Step S210: determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation, and obtain the present value of the original annual average cost of the technical transformation.

[0067] Among them, technical transformation refers to technological transformation.

[0068] When implementing the technology, the full life cycle cost includes:

[0069] The technical transformation investment cost, technical transformation operation cost, technical transformation maintenance cost, technical transformation failure cost and technical transformation abandonment cost of the target equipment are obtained, and the technical transformation investment cost, the technical transformation operation cost, the technical transformation maintenance cost, the technical transformation failure cost and the technical transformation abandonment cost are added together to obtain the full life cycle cost of the technical transformation.

[0070] As a specific embodiment, CI1 represents the investment cost expenditure for technological transformation; CO1 represents the operating cost of technological transformation; CM1 represents the maintenance cost of technological transformation of target equipment; CF1 represents the failure cost of technological transformation of target equipment; CD1 represents the disposal cost of technological transformation of target equipment at the end of expected service life.

[0071] The above exemplary embodiment introduces the full life cycle cost of the technical transformation. The following is an introduction to the remaining useful life of the technical transformation:

[0072] In specific implementation, the remaining useful life of technological transformation refers to:

[0073] The pre-configured re-estimated useful life is obtained as the remaining useful life of the technological transformation.

[0074] Following the above exemplary embodiment, the remaining useful life of the technical transformation is equivalent to the re-evaluated useful life. The specific re-evaluated useful life refers to the expected continued useful life of the equipment after the technical transformation of the existing power grid equipment, based on the effect of the transformation, the improvement of equipment performance, the expected speed of technological updates, and the physical wear and tear of the equipment. This process involves the prediction of the future operating conditions of the equipment, including factors such as the reliability improvement, efficiency increase, and possible extension of service life brought about by the technical transformation, so as to provide a basis for the management and maintenance decisions of the equipment.

[0075] In the above exemplary embodiment, the remaining useful life of the technical transformation is introduced. The following describes a method for obtaining the full life cycle cost of the technical transformation of the target equipment and the remaining useful life of the technical transformation:

[0076] During specific implementation, the method for determining the full life cycle cost of the technical transformation of the target equipment and the remaining service life of the technical transformation is as follows:

[0077] Following the above exemplary embodiment, the number of regulatory cycles and the number of years corresponding to each regulatory cycle are specifically set according to different situations. In this exemplary embodiment, it is assumed that 2015-2018 is the first regulatory cycle, which involves the first round of cost audit and related forecasts and actual investment. 2019-2022 is the second regulatory cycle, which involves the second round of cost audit and forecast. In the first regulatory cycle, the relevant cost data of equipment transformation, including the purchase of new equipment, installation and commissioning costs, etc., are collected to determine CI1. The specific technical transformation investment includes installation engineering costs, commissioning unit commissioning costs, start-up trial operation costs, demolition costs and basic reserve costs. Based on the historical data of equipment operation and market energy prices, the operating cost CO1 after transformation is predicted. The specific operating cost = (the total annual average salary of the operation and maintenance profession + the annual average production cost of the operation and maintenance profession) × (Cn1 / C1) × the remaining life (T); the three-year substation operation and maintenance costs are averaged; Cn1 is the original value of the newly purchased assets; C1 is the sum of the original values ​​of all equipment assets under the jurisdiction of this profession. By analyzing the equipment maintenance records and maintenance strategies, the maintenance cost CM1 after the transformation is estimated. The specific maintenance cost = (the total annual average salary of the maintenance profession + the annual average production cost of the maintenance profession) × (Cn1 / C1) × the remaining life (T). According to the statistics of three years of maintenance work tickets (taking the average), the maintenance cost is converted based on this. Using the failure rate data and maintenance costs, the failure cost CF1 after the transformation is calculated. The specific failure cost includes three items: failure repair cost, power outage loss, and compensation for important users. Among them, the indirect costs of equipment failure power outage loss and compensation for important users are not taken into account; Fault repair fee = transformer single repair fee × Y (equipment transmission failure probability) + circuit breaker single repair fee × Y (equipment transmission failure probability) + current transformer single repair fee × Y (equipment transmission failure probability). The single fault repair fee is (5)% of the original value of the newly purchased equipment assets, and the probability is considered to be 1 failure every 25 years. Finally, considering the disposal costs and market value of the equipment when it is retired, the waste cost CD1 is calculated. The specific waste costs include retirement costs, demolition costs and disposal income. Retirement cost: normal scrapping at maturity = scrap asset residual value rate (5%); demolition cost: temporarily calculated based on a demolition project of 10,000 yuan; disposal income: unit price of waste materials × quantity, according to scrap processing, 200 yuan / unit.

[0078] By analyzing factors such as the current status of the equipment, the effects of technological transformation, the improvement in equipment performance, and the expected speed of technological updates, the expected remaining useful life of the power grid equipment after technological transformation is determined, that is, the remaining useful life of the technological transformation, which is also equivalent to the re-estimated useful life.

[0079] In the above exemplary embodiment, the method of obtaining the full life cycle cost of the technical transformation of the target equipment and the remaining useful life of the technical transformation is introduced. The following is an introduction to the present value of the original annual average cost of the technical transformation:

[0080] In specific implementation, the present value of the original annual average cost of technological transformation refers to:

[0081] All costs and benefits of the technological transformation project during its expected useful life are discounted to the current point in time at a specific discount rate to evaluate the feasibility and benefits of the technological transformation project from an economic perspective. This includes the initial investment, operating costs, maintenance costs, failure costs, and final disposal costs of the technological transformation, and takes into account the time value of money, thereby judging the economic feasibility and return on investment of the technological transformation project.

[0082] In the above exemplary embodiment, the original average annual cost present value of the technical transformation is introduced. The following is a method for obtaining the original average annual cost present value of the technical transformation:

[0083] In specific implementation, the net present value is calculated based on the full life cycle cost of the technological transformation and the remaining useful life of the technological transformation, and the original annual average cost present value of the technological transformation is:

[0084] Continuing with the above exemplary embodiment, the original annual average cost present value (NPV1) of the technical transformation is the sum of the total cost expenditure (CI1), operating cost (CO1), maintenance cost (CM1), failure cost (CF1) and decommissioning disposal cost (CD1) of the technical transformation project, divided by the re-evaluated equipment service life, to obtain the average annual cost, and then this average annual cost is discounted to the current value according to the weighted average allowed rate of return, and the time difference from the current year to a certain year in the future, that is, the difference annual value, is taken into account to calculate the average annual cost present value of the technical transformation project over the entire expected service life, refer to the following formula:

[0085]

[0086] In the formula, i represents the weighted average permitted rate of return; n is the annual value of the difference between a future year for calculating the average annual expense and the current year.

[0087] Step S220: determine the overhaul full life cycle cost and the remaining useful life of the target equipment, perform net present value calculation based on the overhaul full life cycle cost and the remaining useful life of the overhaul, and obtain the present value of the original annual average cost of the overhaul.

[0088] Among them, overhaul refers to large-scale repairs.

[0089] When implemented, the full life cycle cost of overhaul includes:

[0090] Obtain the overhaul investment cost, overhaul operation cost, overhaul maintenance cost, overhaul failure cost and overhaul abandonment cost of the target equipment, add the overhaul investment cost, overhaul operation cost, overhaul maintenance cost, overhaul failure cost and overhaul abandonment cost together to obtain the overhaul full life cycle cost.

[0091] Continuing with the above exemplary embodiment, CI2 represents the investment cost expenditure for large-scale repairs; CO2 represents the operating cost for large-scale repairs; CM2 represents the inspection cost for large-scale repairs of the target equipment; CF2 represents the failure cost for large-scale repairs of the target equipment; CD2 represents the disposal cost of the target equipment at the end of its expected service life after large-scale repairs.

[0092] In the above exemplary embodiment, the full life cycle cost of overhaul is introduced. Now, the remaining useful life of overhaul is introduced:

[0093] In specific implementation, the remaining service life of overhaul refers to:

[0094] The years already used shall be deducted from the depreciation period determined in accordance with relevant financial and tax regulations.

[0095] Continuing with the above exemplary embodiment, the remaining useful life after overhaul refers to the number of years that the equipment is expected to continue to be used after the overhaul, which is calculated by subtracting the used years from the pricing depreciation life. Specifically, the pricing depreciation life is the total useful life of the equipment determined in accordance with financial and tax regulations, while the used years refer to the actual operating time of the equipment since it was put into use. Through this calculation, it can be determined how many years the equipment can be effectively operated after the overhaul, thereby providing a basis for subsequent maintenance, management and investment decisions.

[0096] In the above exemplary embodiment, the remaining useful life of overhaul is introduced. The following describes a method for obtaining the overhaul full life cycle cost and the remaining useful life of overhaul of the target equipment:

[0097] In specific implementation, the method of determining the overhaul life cycle cost and the remaining service life of the target equipment is as follows:

[0098] Following the above exemplary embodiment, the relevant cost data of equipment overhaul is collected, where CI2 includes all direct costs in the overhaul process, such as material costs, labor costs and related engineering costs. Specifically, the costs incurred in equipment overhaul should be included in the input cost, including materials, labor and costs of repair and commissioning costs. CO2 involves the energy consumption and daily maintenance expenses of the equipment during operation. The specific operation and maintenance cost = (the annual average total salary of the operation and maintenance profession + the annual average production cost of the operation and maintenance profession) × (Cn1 / C1) * remaining life (T); the three-year substation operation and maintenance fee is averaged; Cn1 is the original value of the newly purchased assets; C1 is the sum of the original values ​​of all equipment assets under the jurisdiction of this profession. CM2 determines the regular maintenance and overhaul costs of the equipment based on historical data and predictive analysis. The specific overhaul costs = (the annual average total salary of the overhaul profession + the annual average production cost of the overhaul profession) × (Cn1 / C1) × remaining life (T), and the maintenance cost is calculated based on the statistics of three-year maintenance work tickets (average). CF2 considers the repair costs and possible operating losses when equipment fails. The specific failure costs include three items: repair costs, power outage losses, and compensation for important users. Among them, the indirect costs of power outage losses and compensation for important users are not taken into account; Fault repair costs = transformer single repair costs × Y (equipment delivery failure probability) + circuit breaker single repair costs × Y (equipment delivery failure probability) + current transformer single repair costs × Y (equipment delivery failure probability), and the single repair costs are (5)% of the original value of the newly purchased equipment assets, and the probability is considered to be 1 failure every 25 years. CD2 estimates the removal, treatment and recycling costs of equipment when it is retired. The specific waste costs include retirement costs, removal costs and disposal income. Retirement costs: normal scrapping at maturity = scrap asset residual value rate (5%); removal costs: temporarily calculated as 10,000 yuan for the removal project; disposal income: sales unit price of waste materials × quantity, according to waste treatment, 200 yuan / unit.

[0099] The method to determine the remaining useful life of the overhaul is to subtract the number of years the equipment has been used since its purchase from the equipment's pricing depreciation period, that is, the total number of years to be amortized from the equipment's purchase to its scrapping determined according to accounting plans and tax regulations, to obtain the number of years the equipment is expected to continue to be used after the overhaul. This calculation result is the remaining useful life of the overhaul project.

[0100] In the above exemplary embodiment, the method of obtaining the overhaul full life cycle cost and the remaining service life of the overhaul of the target equipment is introduced. The following is an introduction to the present value of the original annual average cost of the overhaul:

[0101] In specific implementation, the present value of the original annual average cost of overhaul refers to:

[0102] All costs expected to be incurred during the remaining useful life of the overhaul project, including the initial overhaul cost, subsequent operating costs, maintenance costs, failure costs and final decommissioning costs, are discounted to the current time using a specific discount rate to evaluate the economic rationality and financial benefits of the overhaul project, while taking into account the time value of money.

[0103] In the above exemplary embodiment, the present value of the original average annual cost of overhaul is introduced. The following is a method for obtaining the present value of the original average annual cost of overhaul:

[0104] In specific implementation, the net present value is calculated based on the full life cycle cost of the overhaul and the remaining useful life of the overhaul, and the original annual average cost present value of the overhaul is:

[0105] Continuing with the above exemplary embodiment, the original average annual cost present value (NPV2) of the overhaul is the sum of the total cost expenditure (CI2), operating cost (CO2), maintenance cost (CM2), failure cost (CF2) and decommissioning disposal cost (CD2) of the overhaul project, divided by the remaining useful life of the equipment (the pricing depreciation life minus the used life), and then the average annual cost is discounted to the current value according to the weighted average allowed rate of return, and the time difference from the current year to a certain year in the future, that is, the difference annual value, is taken into account to calculate the average annual cost present value of the overhaul project over the entire expected useful life, referring to the following formula:

[0106]

[0107] In the formula, i represents the weighted average permitted rate of return; n is the annual value of the difference between a future year for calculating the average annual expense and the current year.

[0108] Step S230: determine the technical transformation cost valuation coefficient, and correct the original average annual cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain the corrected average annual cost present value of the technical transformation.

[0109] In specific implementation, the technical transformation cost valuation coefficient refers to:

[0110] An indicator that reflects the difference between the cost of a technological transformation project and the cost approved by the regulatory agency. It quantifies the compliance and rationality of the cost of a technological transformation project by comparing the present value of the average annual cost after the technological transformation with the simulated cost audit and approval value, which in turn affects the estimated approved value of the allowable income of the technological transformation project. It is an important financial parameter for power grid companies to make decisions on technological transformation projects under the background of transmission and distribution price reform.

[0111] In the above exemplary embodiment, the cost pricing coefficient of the technical transformation is introduced. The following is a method for obtaining the cost pricing coefficient of the technical transformation:

[0112] In this exemplary embodiment, determining the technical transformation cost valuation coefficient includes:

[0113] Determine the depreciation expense and operation and maintenance cost of the target equipment, add up the depreciation expense and the operation and maintenance cost to obtain the technical transformation pricing cost, calculate the difference between the present value of the original annual average cost of the technical transformation and the technical transformation pricing cost, and obtain the technical transformation cost valuation coefficient.

[0114] In specific implementation, the depreciation cost and operation and maintenance cost of the target equipment are determined, and the depreciation cost and the operation and maintenance cost are added together to obtain the technical transformation pricing cost, which means:

[0115] Following the above exemplary embodiment, the technical transformation pricing cost = depreciation cost + operation and maintenance cost;

[0116] Depreciation expense = technical transformation investment expenditure x (1-residual value rate 5%) pricing depreciation rate 5% / revalued useful life;

[0117] Operation and maintenance cost = 2.5% of the original value of the newly added transmission and distribution fixed assets approved during the audit period = the investment plan for this year approved by the transmission and distribution price cost audit x 75% ÷ k x (Cn2 / C2) x 2.5%.

[0118] In the formula: k is the tax rate; Cn2 is the original value of equipment assets after technological transformation; C2 is the total original value of all equipment assets under the jurisdiction of this unit.

[0119] In the above exemplary embodiment, a method for obtaining the pricing cost of the technical transformation is introduced. The following is a method for obtaining the technical transformation cost valuation coefficient:

[0120] In specific implementation, the difference between the present value of the original annual average cost of the technological transformation and the pricing cost of the technological transformation is calculated, and the technological transformation cost pricing coefficient is:

[0121] Continuing with the above exemplary embodiment, the price adjustment coefficient of the transmission and distribution price for the technical transformation method is r1 = (present value of the original annual average cost of the technical transformation - the pricing cost of the technical transformation) ÷ the pricing cost of the technical transformation.

[0122] In the above exemplary embodiment, a method for obtaining the technical transformation cost valuation coefficient is introduced. The following is a method for obtaining the present value of the corrected average annual cost of the technical transformation:

[0123] In specific implementation, the original average annual cost present value of the technological transformation is corrected based on the technological transformation cost valuation coefficient, and the corrected average annual cost present value of the technological transformation is:

[0124] Based on the above exemplary embodiment, the present value of the average annual cost corrected by the price coefficient using the technical transformation method is:

[0125] Y1=NPV1×r1;

[0126] In the formula: Y1 is the present value of the revised average annual cost of equipment technological transformation adjusted according to the pricing coefficient after the equipment technological transformation; NPV1 is the present value of the original average annual cost of equipment technological transformation; r1 is the pricing coefficient of the equipment technological transformation cost.

[0127] By multiplying the original average annual cost present value of technological transformation (NPV1) by the technological transformation cost pricing coefficient (r1), the revised average annual cost present value of technological transformation (Y1) is obtained, which can more accurately reflect the economic cost of the technological transformation project under regulatory requirements and ensure that the investment decision of the technological transformation project is consistent with the transmission and distribution price pricing plan, thereby improving the compliance of decision-making and the accuracy of financial evaluation.

[0128] Step S240: determine the overhaul cost valuation coefficient, and correct the original average annual cost present value of the overhaul based on the overhaul cost valuation coefficient to obtain a corrected average annual cost present value of the overhaul.

[0129] In specific implementation, the overhaul cost valuation coefficient refers to:

[0130] It is used to measure the deviation between the cost of overhaul projects and the cost approved by the regulatory agency. It is adjusted by comparing the present value of the average annual cost after the overhaul with the simulated cost audit and approval value, so as to ensure that the financial evaluation of the overhaul project meets regulatory requirements and accurately reflects the economic feasibility of the project. This coefficient helps power grid companies to reasonably plan and evaluate the economic benefits of overhaul projects in the context of transmission and distribution price reform, and ensure the compliance and accuracy of investment decisions.

[0131] In the above exemplary embodiment, the overhaul cost pricing coefficient is introduced. The following is an introduction to the method of obtaining the overhaul cost pricing coefficient:

[0132] In this exemplary embodiment, determining the overhaul cost pricing coefficient includes:

[0133] Determine the material cost and repair cost of the target equipment, add up the material cost and the repair cost to obtain the overhaul pricing cost, calculate the difference between the present value of the original annual average cost of the overhaul and the overhaul pricing cost to obtain the overhaul cost valuation coefficient.

[0134] In specific implementation, the material cost and repair cost of the target equipment are determined, and the material cost and the repair cost are added together to obtain the overhaul pricing cost, which means:

[0135] Continuing with the above exemplary embodiment, overhaul pricing cost = material cost + repair cost = 2.5% of the original value of the newly added transmission and distribution fixed assets approved during the audit = this year's investment plan approved by the transmission and distribution price cost audit x 75% ÷ k x l x (Cn3 / C3) x 2.5%.

[0136] In the formula: k is the tax rate; l is the average proportion of overhaul costs in the three years 2017-2019 to the company's material costs and repair costs; Cn3 is the original value of the equipment assets after overhaul; C3 is the total original value of all equipment assets under the jurisdiction of this unit.

[0137] In the above exemplary embodiment, a method for obtaining the overhaul pricing cost is introduced. The following is a method for obtaining the overhaul cost pricing coefficient:

[0138] In specific implementation, the difference calculation of the present value of the original overhaul annual average cost is based on the overhaul pricing cost to obtain the overhaul cost pricing coefficient, which is:

[0139] Continuing with the above exemplary embodiment, the transmission and distribution price adjustment coefficient for the overhaul method r2 = (present value of the original annual average cost of the overhaul - overhaul pricing cost) ÷ overhaul pricing cost.

[0140] In the above exemplary embodiment, a method for obtaining the overhaul cost valuation coefficient is introduced. The following is a method for obtaining the present value of the modified overhaul annual average cost:

[0141] In specific implementation, the original average annual cost present value of the overhaul is corrected based on the overhaul cost valuation coefficient, and the corrected average annual cost present value of the overhaul is:

[0142] Based on the above exemplary embodiment, the present value of the average annual cost corrected by the price factor using the overhaul method is:

[0143] Y2=NPV2×r2;

[0144] In the formula: Y2 is the present value of the revised average annual cost of technical transformation after equipment overhaul adjusted according to the pricing coefficient; NPV2 is the present value of the original average annual cost of equipment overhaul; r2 is the pricing coefficient of equipment overhaul cost.

[0145] By multiplying the original average annual cost present value of overhaul (NPV2) by the overhaul cost pricing coefficient (r2), the revised average annual cost present value of overhaul (Y2) is obtained, which can more accurately reflect the economic cost of the overhaul project under regulatory requirements and ensure that the investment decision of the overhaul project is consistent with the transmission and distribution price pricing plan, thereby improving the compliance of decision-making and the accuracy of financial evaluation.

[0146] Step S250, determining the estimated approved value of the permitted technological transformation income, adding the present value of the revised average annual cost of the technological transformation to the estimated approved value of the permitted technological transformation income, to obtain the estimated approved value of the permitted technological transformation income.

[0147] In specific implementation, the estimated approved value of the permissible benefits of technological transformation refers to:

[0148] In the context of power transmission and distribution price reform, the expected benefits of technological transformation projects within the regulatory period are estimated and verified based on regulatory plans and corporate financial data. This value takes into account factors such as the original value of fixed assets, technological transformation investment expenditure, residual value rate, pricing depreciation rate, depreciation period, and weighted average permitted rate of return of the technological transformation projects. It is used to evaluate the economic rationality and financial benefits of technological transformation projects, ensure that project investments meet regulatory requirements, and provide decision-making support for power grid companies.

[0149] In the above exemplary embodiment, the estimated and approved value of the permitted benefits of technological transformation is introduced. The following is a method for obtaining the estimated and approved value of the permitted benefits of technological transformation:

[0150] In this exemplary embodiment, determining the estimated approved value of the permitted benefits of technological transformation includes:

[0151] Determine the original value of fixed assets, residual value rate, pricing depreciation rate, weighted average allowable rate of return and depreciation period of the target equipment, make provisions for the original value of fixed assets, the residual value rate, the pricing depreciation rate, the weighted average allowable rate of return and the depreciation period, and obtain the estimated approved value of the allowable income of the technological transformation.

[0152] In specific implementation, the original value of fixed assets refers to:

[0153] The original cost of the equipment when it was purchased, that is, the value of the equipment at the time of initial investment, without taking into account any depreciation factors.

[0154] In specific implementation, the residual value rate refers to:

[0155] It refers to the percentage of the original value that is expected to remain on the equipment at the end of its estimated useful life; for example, if the salvage value is 5%, it means that 5% of the original value of the equipment is expected to be recovered when it is scrapped.

[0156] In specific implementation, the pricing depreciation rate refers to:

[0157] Refers to the rate used to calculate the depreciation of fixed assets, determined according to accounting plans or management requirements. This rate directly affects the calculation of annual depreciation expenses.

[0158] In specific implementation, the weighted average permitted rate of return refers to:

[0159] The rate of return is usually determined based on the company's capital structure and management plan and is used to calculate the company's return on investment and profit estimates.

[0160] In specific implementation, the depreciation period refers to:

[0161] The total number of years during which depreciation can be accrued for a fixed asset from its initial use to its expected retirement is determined. It directly affects the depreciation calculation of fixed assets and the company's financial statements.

[0162] Following the above exemplary embodiment, there are four ways to obtain the estimated approved value of the permitted benefits of technological transformation (R1), including: if the depreciation period of the equipment is revalued and managed by establishing a new fixed asset card, the remaining depreciation period after the technological transformation is the revalued depreciation period, and then the first type of technological transformation permitted benefits estimated approved value (R 11 );

[0163] If the equipment depreciation period is revalued but the old fixed asset card is still used for management, the remaining depreciation period after the technical transformation is the revalued depreciation period minus the service life, and the second type of technical transformation permissible income estimated value (R 12 );

[0164] If the equipment depreciation period is not revalued and a new fixed asset card is established for management, the remaining depreciation period after the technical transformation is the original financial depreciation period, and the third type of technical transformation permissible income estimated value (R 13 );

[0165] If the equipment depreciation period is not revalued but the old fixed asset card is used for management, the remaining depreciation period after the technical transformation is the original financial depreciation period minus the service life, and then the first category of technical transformation permissible income estimated value (R 14 ).

[0166] According to the calculation method of net fixed asset value, considering that the transmission and distribution price is only based on the effective asset scale in the last year of each regulatory cycle, and there is a 75% requirement for the new investment to be included in the new fixed assets ratio, the formula for the estimated value of the allowable income under the technical transformation plan each year in the regulatory cycle is as follows:

[0167] The first category is revaluing the depreciation period and creating new asset cards:

[0168] The estimated approved value of the permitted benefits of technological transformation in the first year of the regulatory cycle:

[0169]

[0170] The estimated approved value of the permitted benefits of technological transformation in the second year of the regulatory cycle:

[0171]

[0172] The estimated approved value of the permitted benefits of technological transformation in the third year of the regulatory cycle:

[0173]

[0174] Where: R 11 , R′ 11 , R″ 11They respectively represent the estimated approved values ​​of the allowable income when the equipment completes technical transformation in the first, second and third years of the regulatory cycle; g0 is the original value of the equipment fixed assets; j0 is the technical transformation investment expenditure; c is the residual value rate; d is the pricing depreciation rate; n2 is the revaluation and depreciation period of the equipment; m is the number of months remaining from the capitalization date of the equipment to the end of the year; i is the weighted average allowable rate of return of the company's second round of transmission and distribution price cost supervision in 2019, where the weighted average allowable rate of return refers to the average rate of return that the power grid company is allowed to obtain by the regulatory agency within a specific regulatory cycle. This rate of return takes into account the risks and capital costs of different assets or projects of the company, and is weighted and calculated according to their respective weights.

[0175] The second category is the revaluation of depreciation period and the use of old asset cards:

[0176] The estimated approved value of the permitted benefits of technological transformation in the first year of the regulatory cycle:

[0177]

[0178] The estimated approved value of the permitted benefits of technological transformation in the second year of the regulatory cycle:

[0179]

[0180] The estimated approved value of the permitted benefits of technological transformation in the third year of the regulatory cycle:

[0181]

[0182] Where: R 12 , R′ 12 , R″ 12 They respectively represent the estimated approved values ​​of the allowable income when the equipment completes technical transformation in the first, second and third years of the regulatory cycle; g0 is the original value of the equipment fixed assets; j0 is the technical transformation investment expenditure; c is the residual value rate; d is the pricing depreciation rate; n2 is the equipment revaluation depreciation period; n0 is the equipment service life; i is the weighted average allowable rate of return of the company's second round of transmission and distribution price cost audit in 2019.

[0183] The third category is the situation where the depreciation period is not revalued and a new asset card is created:

[0184] The estimated approved value of the permitted benefits of technological transformation in the first year of the regulatory cycle:

[0185]

[0186] The estimated approved value of the permitted benefits of technological transformation in the second year of the regulatory cycle:

[0187]

[0188] The estimated approved value of the permitted benefits of technological transformation in the third year of the regulatory cycle:

[0189]

[0190] Where: R 13 , R′ 13 , R″ 13 They respectively represent the estimated approved values ​​of the allowable income when the equipment completes technical transformation in the first, second and third years of the regulatory cycle; g0 is the original value of the equipment fixed assets; j0 is the technical transformation investment expenditure; c is the residual value rate; d is the pricing depreciation rate; n1 is the financial depreciation period of the equipment; m is the number of months remaining from the capitalization date of the equipment to the end of the year; i is the weighted average allowable rate of return of the company's second round of transmission and distribution price cost audit in 2019.

[0191] The fourth category is the situation where the depreciation period is not revalued and the old asset cards are used:

[0192] The estimated approved value of the permitted benefits of technological transformation in the first year of the regulatory cycle:

[0193]

[0194] The estimated approved value of the permitted benefits of technological transformation in the second year of the regulatory cycle:

[0195]

[0196] The estimated approved value of the permitted benefits of technological transformation in the third year of the regulatory cycle:

[0197]

[0198] Where: R 14 , R′ 14 , R″ 14 They respectively represent the estimated approved values ​​of the allowable income when the equipment completes technical transformation in the first, second and third years of the regulatory cycle; g0 is the original value of the equipment fixed assets; j0 is the technical transformation investment expenditure; c is the residual value rate; d is the pricing depreciation rate; n1 is the financial depreciation period of the equipment; n0 is the service life of the equipment; i is the weighted average allowable rate of return of the company's second round of transmission and distribution price cost audit in 2019.

[0199] In the above exemplary embodiment, a method for determining the estimated and approved value of the permitted income of the technological transformation is introduced. The following is a method for obtaining the estimated and approved value of the permitted income of the technological transformation:

[0200] In specific implementation, the present value of the average annual cost of the revised technological transformation is added to the estimated approved value of the permitted technological transformation income, and the estimated approved value of the permitted technological transformation income is obtained, which means:

[0201] Based on the above exemplary embodiment, the estimated value of the allowable income using the technical transformation method is:

[0202] Z1=Y1+R1;

[0203] In the formula: Z1 is the approved value of the permissible income of the equipment through technical transformation; Y1 is the approved value of the permissible cost of the equipment through technical transformation; R1 is the approved value of the permissible profit of the equipment through technical transformation.

[0204] Step S260: determine the estimated approved value of the overhaul permissible income, add the present value of the modified overhaul average annual cost to the estimated approved value of the overhaul permissible income, and obtain the estimated approved value of the overhaul permissible income.

[0205] In specific implementation, the estimated approved value of the allowable revenue from overhaul refers to:

[0206] In the context of transmission and distribution price reform, the expected income of power grid equipment overhaul projects within the regulatory cycle is estimated based on regulatory plans and corporate financial data. This value takes into account factors such as the original value of fixed assets, residual value rate, pricing depreciation rate, depreciation period, and weighted average permitted rate of return of the overhaul project. It is used to evaluate the economic rationality and financial benefits of overhaul projects, ensure that project investment meets regulatory requirements, and provide decision-making support for power grid companies.

[0207] In the above exemplary embodiment, the estimated and approved value of the overhaul permissible benefit is introduced. The following is a method for obtaining the estimated and approved value of the overhaul permissible benefit:

[0208] In specific implementation, the estimated approved value of the permissible revenue from overhaul refers to:

[0209] The original value of the fixed assets, the residual value rate, the weighted average permitted rate of return and the depreciation period are accrued to obtain the estimated approved value of the permitted income from the technological transformation.

[0210] Following the above exemplary embodiment, the original value of fixed assets and the depreciation period remain unchanged after the equipment is overhauled. Therefore, the residual value after deducting the depreciation fee during the service life from the original value of fixed assets after overhaul is the net value of fixed assets. Considering that the transmission and distribution price is only based on the effective asset scale in the last year of each regulatory cycle, the formula for the estimated value of the allowable income under the overhaul plan every year in the regulatory cycle is as follows:

[0211] The estimated approved value of the allowable income from major repairs in the first year of the regulatory cycle is:

[0212]

[0213] The estimated approved value of the allowable income for major overhaul in the second year of the regulatory cycle is:

[0214]

[0215] The estimated approved value of the permitted income for major overhaul in the third year of the regulatory cycle is:

[0216]

[0217] Where: R2, R′2, R″2 represent the estimated approved values ​​of the permissible income when the equipment is overhauled in the first, second and third years of the supervision cycle respectively; g0 is the original value of the equipment fixed assets; c is the residual value rate; n1 is the financial depreciation period of the equipment; n0 is the service life of the equipment; i is the weighted average permissible rate of return.

[0218] In the above exemplary embodiment, a method for obtaining an estimated and approved value of the revenue permitted by overhaul is introduced. The following method for obtaining an estimated and approved value of the revenue permitted by overhaul is introduced:

[0219] In specific implementation, the present value of the modified average annual cost of overhaul is added to the estimated approved value of the overhaul permissible income, and the estimated approved value of the overhaul permissible income is obtained, which means:

[0220] Based on the above exemplary embodiment, the estimated value of the allowable income using the overhaul method is:

[0221] Z2=Y2+R2;

[0222] In the formula: Z2 is the approved value of the allowable income for equipment overhaul; Y2 is the approved value of the allowable cost for equipment overhaul; R2 is the approved value of the allowable profit for equipment overhaul.

[0223] Step S270: input the estimated and approved value of the permissible income from the technical transformation and the estimated and approved value of the permissible income from the overhaul into a technical transformation and overhaul strategy decision model, and obtain a technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

[0224] In specific implementation, the technical transformation and overhaul decision-making model refers to:

[0225] A decision support tool for evaluating and deciding whether power grid equipment should undergo technical transformation (technical renovation) or overhaul.

[0226] In the above exemplary embodiment, a technical renovation and overhaul decision model is introduced. The following is an introduction to the method of obtaining the decision result of the technical renovation and overhaul strategy:

[0227] In this exemplary embodiment, the estimated and approved value of the permitted income of the technical transformation and the estimated and approved value of the permitted income of the overhaul are input into the technical transformation and overhaul strategy decision model, and the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model is obtained, including:

[0228] The technical transformation and overhaul strategy decision model calculates the difference between the estimated approved value of the technical transformation allowable income and the estimated approved value of the overhaul allowable income to obtain a technical transformation and overhaul strategy decision index, analyzes the technical transformation and overhaul strategy decision index, and obtains the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

[0229] In specific implementation, the technical transformation and overhaul strategy decision model calculates the difference between the estimated approved value of the technical transformation allowable income and the estimated approved value of the overhaul allowable income, and obtains the technical transformation and overhaul strategy decision index, which is:

[0230] Following the above exemplary embodiment, the estimated approved value of the permitted income of technical transformation and the estimated approved value of the permitted income of overhaul are input into the technical transformation and overhaul strategy decision model, and the technical transformation and overhaul strategy decision model calculates the difference between the estimated approved value of the permitted income of technical transformation and the estimated approved value of the permitted income of overhaul. By comparing the calculation results of the overhaul plan and the technical transformation plan, the economic feasibility of the price evaluation of the overhaul and technical transformation projects is judged. The calculation model of the technical transformation and overhaul strategy decision index is as follows:

[0231] Q = Z1-Z2;

[0232] In the formula: Q is the difference between the estimated and approved values ​​of the permissible income of the equipment after overhaul and technical transformation, that is, the technical transformation and overhaul strategy decision index; Z1 is the estimated and approved value of the permissible income of the equipment after technical transformation; Z2 is the estimated and approved value of the permissible income of the equipment after overhaul.

[0233] In the above exemplary embodiment, a method for obtaining a technical transformation and overhaul strategy decision index is introduced. Next, a method for obtaining a technical transformation and overhaul strategy decision result is introduced:

[0234] In this example embodiment, the technical transformation and overhaul strategy decision result includes: a technical transformation plan decision or an overhaul plan decision; analyzing the technical transformation and overhaul strategy decision index to obtain the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model includes:

[0235] The technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is a positive number, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision; or, the technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is a negative number, the technical transformation and overhaul strategy decision model outputs the overhaul plan decision; or, the technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is zero, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision and / or the overhaul plan decision.

[0236] In specific implementation, the technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is a positive number, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision; or, the technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is a negative number, the technical transformation and overhaul strategy decision model outputs the overhaul plan decision; or, the technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is zero, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision and / or the overhaul plan decision, which means:

[0237] Following the above exemplary embodiment, if Q is a positive number, that is, the implementation of the technical transformation plan is more conducive to improving the permitted income verification result, it is recommended to carry out technical transformation of the equipment; if Q is a negative number, that is, the implementation of the overhaul plan is more conducive to improving the permitted income verification result, it is recommended to overhaul the equipment. If Q is zero, that is, the implementation of the technical transformation plan and the implementation of the overhaul plan have the same contribution to the permitted income verification result, the project type is flexibly set according to the scale of investment funds for the technical transformation and overhaul projects.

[0238] Based on the above exemplary embodiments, by comprehensively considering the full life cycle cost, remaining useful life, cost valuation coefficient and estimated value of allowable income of technical transformation and overhaul projects, a scientific and systematic decision-making method is provided, which helps power grid companies to optimize the economic benefit evaluation of technical transformation and overhaul projects under the regulatory framework, ensure the compliance and accuracy of investment decisions, thereby improving asset management efficiency and reducing operating costs.

[0239] It should be noted that the method of the embodiment of the present disclosure can be performed by a single device, such as a computer or a server. The method of the present embodiment can also be applied in a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present disclosure, and the multiple devices will interact with each other to complete the described method.

[0240] It should be noted that the above describes some embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0241] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present disclosure also provides a decision-making device for technical transformation and overhaul of power grid equipment.

[0242] refer to Figure 3 The decision-making device for technical transformation and overhaul of the power grid equipment includes:

[0243] The technical transformation original cost determination module 310 is configured to determine the technical transformation full life cycle cost and the remaining useful life of the technical transformation of the target equipment, and perform a net present value calculation based on the technical transformation full life cycle cost and the remaining useful life of the technical transformation to obtain the original annual average cost present value of the technical transformation;

[0244] The overhaul original cost determination module 320 is configured to determine the overhaul full life cycle cost and the overhaul remaining useful life of the target equipment, and perform a net present value calculation based on the overhaul full life cycle cost and the overhaul remaining useful life to obtain the overhaul original annual average cost present value;

[0245] The technical transformation revised cost determination module 330 is configured to determine a technical transformation cost valuation coefficient, and to revise the original annual average cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain a revised annual average cost present value of the technical transformation;

[0246] The overhaul revised cost determination module 340 is configured to determine an overhaul cost valuation coefficient, and to revise the original annual average cost present value of the overhaul based on the overhaul cost valuation coefficient to obtain a revised annual average cost present value of the overhaul;

[0247] The technical transformation income determination module 350 is configured to determine the estimated approved value of the permitted income of the technical transformation, add the present value of the modified annual average cost of the technical transformation to the estimated approved value of the permitted income of the technical transformation, and obtain the estimated approved value of the permitted income of the technical transformation;

[0248] The overhaul revenue determination module 360 ​​is configured to determine the overhaul permissible revenue estimated and approved value, and add the modified overhaul annual average cost present value to the overhaul permissible revenue estimated and approved value to obtain the overhaul permissible revenue estimated and approved value;

[0249] The decision result determination module 370 is configured to input the estimated and approved value of the permitted technical transformation income and the estimated and approved value of the permitted overhaul income into the technical transformation and overhaul strategy decision model to obtain the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

[0250] In this exemplary embodiment, the overhaul original cost determination module 310 is specifically configured as follows:

[0251] Determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation, and obtain the present value of the original average annual cost of the technical transformation.

[0252] In this exemplary embodiment, the overhaul original cost determination module 320 is specifically configured as follows:

[0253] Determine the overhaul full life cycle cost and the remaining useful life of the overhaul of the target equipment, perform a net present value calculation based on the overhaul full life cycle cost and the remaining useful life of the overhaul, and obtain the present value of the original annual average cost of the overhaul.

[0254] In this exemplary embodiment, the technical transformation correction cost determination module 330 is specifically configured as follows:

[0255] Determine the depreciation expense and operation and maintenance cost of the target equipment, add up the depreciation expense and the operation and maintenance cost to obtain the technical transformation pricing cost, perform difference calculation on the present value of the original average annual cost of the technical transformation based on the technical transformation pricing cost to obtain the technical transformation cost valuation coefficient, and correct the original average annual cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain the corrected average annual cost present value of the technical transformation.

[0256] In this exemplary embodiment, the overhaul correction cost determination module 340 is specifically configured as follows:

[0257] Determine the material cost and repair cost of the target equipment, add up the material cost and the repair cost to obtain the overhaul pricing cost, perform difference calculation on the present value of the original average annual cost of the overhaul based on the overhaul pricing cost to obtain the overhaul cost valuation coefficient, and correct the present value of the original average annual cost of the overhaul based on the overhaul cost valuation coefficient to obtain the corrected present value of the average annual cost of the overhaul.

[0258] In this exemplary embodiment, the technical transformation income determination module 350 is specifically configured as follows:

[0259] Determine the depreciation period and data card parameters of the target equipment, estimate the allowable income based on the depreciation period and data card parameters, obtain the estimated approved value of the allowable income of the technological transformation, add the present value of the revised average annual cost of the technological transformation to the estimated approved value of the allowable income of the technological transformation, and obtain the estimated approved value of the allowable income of the technological transformation.

[0260] In this exemplary embodiment, the overhaul income determination module 360 ​​is specifically configured as follows:

[0261] Determine the estimated approved value of the overhaul allowable income, add the present value of the modified overhaul average annual cost to the estimated approved value of the overhaul allowable income, and obtain the estimated approved value of the overhaul allowable income.

[0262] In this exemplary embodiment, the decision result determination module 370 is specifically configured as follows:

[0263] The estimated approved value of the permissible technical transformation income and the estimated approved value of the permissible overhaul income are input into a technical transformation and overhaul strategy decision model, the technical transformation and overhaul strategy decision model calculates the difference between the estimated approved value of the permissible technical transformation income and the estimated approved value of the permissible overhaul income to obtain a technical transformation and overhaul strategy decision index, analyzes the technical transformation and overhaul strategy decision index, and in response to determining that the technical transformation and overhaul strategy decision index is a positive number, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision, or, analyzes the technical transformation and overhaul strategy decision index, and in response to determining that the technical transformation and overhaul strategy decision index is a negative number, the technical transformation and overhaul strategy decision model outputs the overhaul plan decision, or, analyzes the technical transformation and overhaul strategy decision index, and in response to determining that the technical transformation and overhaul strategy decision index is zero, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision and / or the overhaul plan decision.

[0264] For the convenience of description, the above device is described by dividing it into various modules according to its functions. Of course, when implementing the present disclosure, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0265] The device of the above embodiment is used to implement the decision-making method for technical transformation and overhaul of the corresponding power grid equipment in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0266] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the decision-making method for technical transformation and overhaul of the power grid equipment described in any of the above embodiments is implemented.

[0267] Figure 4 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.

[0268] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0269] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0270] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0271] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB, network cable, etc.) or a wireless mode (such as mobile network, WIFI, Bluetooth, etc.).

[0272] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0273] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0274] The electronic device of the above embodiment is used to implement the decision-making method for technical transformation and overhaul of the corresponding power grid equipment in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0275] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present disclosure also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the decision-making method for technical transformation and overhaul of power grid equipment as described in any of the above embodiments.

[0276] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0277] The above-mentioned non-transitory computer-readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0278] The computer instructions stored in the storage medium of the above embodiment are used to enable the computer to execute the decision-making method for technical transformation and overhaul of power grid equipment as described in any embodiment in the above exemplary method part, and have the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0279] Based on the same inventive concept, corresponding to the decision-making method for technical transformation and overhaul of power grid equipment described in any of the above embodiments, the present disclosure also provides a computer program product, which includes computer program instructions. In some embodiments, the computer program instructions can be executed by one or more processors of a computer so that the computer and / or the processor execute the decision-making method for technical transformation and overhaul of power grid equipment. Corresponding to the execution subject corresponding to each step in each embodiment of the decision-making method for technical transformation and overhaul of power grid equipment, the processor that executes the corresponding step may belong to the corresponding execution subject.

[0280] The computer program product of the above embodiment is used to enable the computer and / or the processor to execute the decision-making method for technical transformation and overhaul of power grid equipment as described in any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0281] Those skilled in the art will appreciate that the embodiments of the present disclosure may be implemented as a system, method, or computer program product. Therefore, the present disclosure may be specifically implemented in the following forms, namely: complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software, generally referred to herein as a "circuit," "module," or "system." In addition, in some embodiments, the present disclosure may also be implemented in the form of a computer program product in one or more computer-readable media, which contains computer-readable program code.

[0282] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive examples) of computer-readable storage media may include, for example: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device.

[0283] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0284] The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0285] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0286] It should be understood that each box in the flowchart and / or block diagram and the combination of boxes in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine, and these computer program instructions are executed by a computer or other programmable data processing device to produce a device that implements the functions / operations specified in the boxes in the flowchart and / or block diagram.

[0287] These computer program instructions may also be stored in a computer-readable medium that enables a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable medium produce a product that includes an instruction device that implements the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0288] Computer program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby enabling the instructions executed on the computer or other programmable device to provide a process for implementing the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0289] In addition, although the operations of the disclosed method are described in a particular order in the accompanying drawings, this does not require or imply that the operations must be performed in this particular order, or that all the operations shown must be performed to achieve the desired results. On the contrary, the steps depicted in the flow chart can be performed in a different order. Additionally or alternatively, some steps can be omitted, multiple steps can be combined into one step, and / or one step can be decomposed into multiple steps.

[0290] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0291] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0292] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0293] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0294] Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0295] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

[0296] Although the spirit and principle of the present disclosure have been described with reference to several specific embodiments, it should be understood that the present disclosure is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and such division is only for the convenience of expression. The present disclosure is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims. The scope of the attached claims conforms to the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A decision-making method for technical transformation and overhaul of power grid equipment, characterized in that: include: Determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation, and obtain the present value of the original annual average cost of the technical transformation; Determine the overhaul full life cycle cost and the remaining useful life of the overhaul of the target equipment, perform a net present value calculation based on the overhaul full life cycle cost and the remaining useful life of the overhaul, and obtain the present value of the original annual average cost of the overhaul; Determine the technical transformation cost valuation coefficient, and amend the original average annual cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain the amended average annual cost present value of the technical transformation; Determine the overhaul cost valuation coefficient, and correct the original average annual cost present value of the overhaul based on the overhaul cost valuation coefficient to obtain a corrected average annual cost present value of the overhaul; Determine the estimated approved value of the permitted income of the technological transformation, add the present value of the average annual cost of the revised technological transformation to the estimated approved value of the permitted income of the technological transformation, and obtain the estimated approved value of the permitted income of the technological transformation; Determine the approved estimated value of overhaul revenue, add the present value of the modified average annual cost of overhaul to the approved estimated value of overhaul revenue, and obtain the approved estimated value of overhaul revenue; The estimated and approved value of the permissible income from the technical transformation and the estimated and approved value of the permissible income from the overhaul are input into a technical transformation and overhaul strategy decision model to obtain a technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

2. The method according to claim 1, characterized in that The determination of the full life cycle cost of the technical transformation of the target equipment and the remaining useful life of the technical transformation includes: Obtaining the technical transformation investment cost, technical transformation operation cost, technical transformation maintenance cost, technical transformation failure cost and technical transformation abandonment cost of the target equipment, adding the technical transformation investment cost, the technical transformation operation cost, the technical transformation maintenance cost, the technical transformation failure cost and the technical transformation abandonment cost to obtain the full life cycle cost of the technical transformation; Obtain the pre-configured re-estimated useful life as the remaining useful life of the technical transformation; Determining the overhaul life cycle cost and remaining service life of the target equipment includes: Obtaining the overhaul investment cost, overhaul operation cost, overhaul maintenance cost, overhaul failure cost and overhaul abandonment cost of the target equipment, and adding the overhaul investment cost, the overhaul operation cost, the overhaul maintenance cost, the overhaul failure cost and the overhaul abandonment cost to obtain the overhaul full life cycle cost; Obtain the pricing depreciation period and the service life of the target equipment, subtract the pricing depreciation period from the service life, and obtain the remaining service life for overhaul.

3. The method according to claim 1, characterized in that The determination of the technical transformation cost valuation coefficient includes: Determine the depreciation cost and operation and maintenance cost of the target equipment, add up the depreciation cost and the operation and maintenance cost to obtain the technical transformation pricing cost; The difference between the present value of the original annual average cost of the technical transformation and the pricing cost of the technical transformation is calculated to obtain the technical transformation cost pricing coefficient; The determination of the overhaul cost pricing coefficient includes: Determine the material cost and repair cost of the target equipment, and add up the material cost and the repair cost to obtain the overhaul pricing cost; The overhaul cost pricing coefficient is obtained by performing a difference calculation on the present value of the original annual average cost of the overhaul based on the overhaul pricing cost.

4. The method according to claim 1, characterized in that: The determination of the estimated value of the permissible benefits of technological transformation includes: Determine the original value of fixed assets, residual value rate, pricing depreciation rate, weighted average permitted rate of return and depreciation period of the target equipment, make provisions for the original value of fixed assets, the residual value rate, the pricing depreciation rate, the weighted average permitted rate of return and the depreciation period, and obtain the estimated approved value of the permitted income of the technological transformation; The determination of the estimated value of the permissible revenue from overhaul includes: The original value of the fixed assets, the residual value rate, the weighted average permitted rate of return and the depreciation period are accrued to obtain the estimated approved value of the permitted income from the technological transformation.

5. The method according to claim 1, characterized in that The step of inputting the estimated and approved value of the permitted income from the technical transformation and the estimated and approved value of the permitted income from the overhaul into the technical transformation and overhaul strategy decision model to obtain the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model includes: The technical transformation and overhaul strategy decision model calculates the difference between the estimated and approved value of the technical transformation permitted income and the estimated and approved value of the overhaul permitted income to obtain a technical transformation and overhaul strategy decision index; The technical transformation and overhaul strategy decision index is analyzed to obtain the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

6. The method according to claim 5, characterized in that The technical transformation and overhaul strategy decision results include: technical transformation plan decision or overhaul plan decision; The analyzing the technical renovation and overhaul strategy decision index to obtain the technical renovation and overhaul strategy decision result output by the technical renovation and overhaul strategy decision model includes: The technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is a positive number, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision; or, The technical renovation and overhaul strategy decision index is analyzed, and in response to determining that the technical renovation and overhaul strategy decision index is a negative number, the technical renovation and overhaul strategy decision model outputs the overhaul plan decision; or, The technical transformation and overhaul strategy decision index is analyzed, and in response to determining that the technical transformation and overhaul strategy decision index is zero, the technical transformation and overhaul strategy decision model outputs the technical transformation plan decision and / or the overhaul plan decision.

7. A decision-making device for technical transformation and overhaul of power grid equipment, characterized in that: include: The original cost determination module of the technical transformation is configured to determine the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation of the target equipment, and perform a net present value calculation based on the full life cycle cost of the technical transformation and the remaining useful life of the technical transformation to obtain the original annual average cost present value of the technical transformation; The overhaul original cost determination module is configured to determine the overhaul full life cycle cost and the overhaul remaining useful life of the target equipment, and perform a net present value calculation based on the overhaul full life cycle cost and the overhaul remaining useful life to obtain the overhaul original annual average cost present value; A technical transformation revised cost determination module is configured to determine a technical transformation cost valuation coefficient, and to revise the original annual average cost present value of the technical transformation based on the technical transformation cost valuation coefficient to obtain a revised annual average cost present value of the technical transformation; An overhaul revised cost determination module is configured to determine an overhaul cost valuation coefficient, and to revise the original annual average cost present value of the overhaul based on the overhaul cost valuation coefficient to obtain a revised annual average cost present value of the overhaul; A technical transformation income determination module is configured to determine an estimated approved value of the permitted income of the technical transformation, and add the present value of the modified average annual cost of the technical transformation to the estimated approved value of the permitted income of the technical transformation to obtain the estimated approved value of the permitted income of the technical transformation; An overhaul income determination module is configured to determine an estimated approved value of an overhaul permissible income, and add the present value of the modified overhaul annual average cost to the estimated approved value of the overhaul permissible income to obtain the estimated approved value of the overhaul permissible income; The decision result determination module is configured to input the estimated and approved value of the permitted technical transformation income and the estimated and approved value of the permitted overhaul income into the technical transformation and overhaul strategy decision model to obtain the technical transformation and overhaul strategy decision result output by the technical transformation and overhaul strategy decision model.

8. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method according to any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium, characterized in that: The non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause a computer to execute the method according to any one of claims 1 to 6.

10. A computer program product, characterized in that The method comprises computer program instructions, which, when executed on a computer, cause the computer to execute the method according to any one of claims 1 to 6.

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