State evaluation method for distribution network construction and transformation strategy

Abstract

The invention provides a state evaluation method for guiding a distribution network construction and transformation strategy. A system comprises a data acquisition module, a data processing module, a planning module and a management module. The method comprises the following steps: firstly, acquiring operation data of various distribution network equipment through a data acquisition module, and transmitting the acquired data to a data processing module; the data processing module classifies the collected operation data, performs adaptive matching analysis on the collected operation data and various preset index weights, and transmits an analysis result to the planning module; the planning module performs classification and integration on scores of different distribution network devices according to analysis results and calculates the sequence of construction and reconstruction of the distribution network devices according to comprehensive scores, and a preset value is set in the comprehensive score calculation module; if the evaluation score does not reach the preset value, the planning module re-formulates calculation scores of different indexes, and a comprehensive score calculation module performs construction and reconstruction sequence of the distribution network equipment; and if the evaluation score reaches a preset value, transmitting a planning result to a management module, and completing a distribution network equipment construction and transformation optimization sequence. According to the method, the construction and transformation sequence of the distribution network equipment can be determined by taking the optimal comprehensive evaluation of reliability and economy as a target according to the operation score conditions of different distribution network equipment, the effect of refined investment is realized, and the effects of further determining the project priority and maximizing the resource configuration benefit are greatly achieved.

Description

Technical Field

[0001] The invention relates to the technical field of timing optimization of distribution network projects, and in particular to a state evaluation method for distribution network construction and transformation strategy. Background Art

[0002] The project establishment of distribution network is a complex and tedious system engineering, which has the characteristics of large-scale distribution network, many uncertain factors and wide-ranging fields. The planning or design scheme itself has the characteristics of prediction and simulation, which is closely related to the history and future of the power grid. The quality of the scheme itself and the degree of implementation of the scheme play a key role in the economic technology and adaptive development level of the power grid.

[0003] The grasp of the development direction of the power grid is achieved through the determination and implementation of the distribution network planning and transformation plan. In the context of the new power system, affected by the access of new energy and diversified loads, future project establishment will become more difficult. In order to predict and analyze the power grid when the power grid planning plan is determined, truly grasp the construction and operation level of the future power grid, and strengthen the active management level of the power grid, it is urgent to conduct a comprehensive evaluation of the distribution network status. Comprehensively and thoroughly understand and master the operating status and distribution network equipment level of the existing distribution network assets in the region, provide complete, accurate and valuable evaluation results for the planning projects, and guide the planning and construction departments to accurately establish projects and invest. This is an important means to ensure the quality of power grid construction and the future power supply level of the power grid, so it plays a vital role. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned and / or existing problems in the timing of distribution network planning projects, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is to formulate the timing optimization of distribution network planning projects according to the problem level of distribution network equipment.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] In a first aspect, an embodiment of the present invention provides a state evaluation method for a distribution network construction and transformation strategy, which includes:

[0009] Obtain distribution network equipment data;

[0010] Classify the acquired data of various types of distribution network equipment, and conduct adaptability matching analysis with the indicator weights of various types of distribution network equipment;

[0011] Optimize the order of construction and renovation of distribution network equipment according to the scores of distribution network equipment;

[0012] The output evaluation scores meet the planning scheme timing of the preset standards, and the distribution network project timing optimization is completed.

[0013] As a preferred solution of the state evaluation method for distribution network construction and transformation strategy described in the present invention, the distribution network equipment data includes load data and model data of the distribution network equipment.

[0014] 11. As a preferred solution of the state evaluation method for distribution network construction and transformation strategy described in the present invention, wherein: the acquired distribution network equipment data is classified and adaptive matching analysis is performed with preset indicator weights, and the analysis results include:

[0015] Based on the obtained distribution network equipment data, understand the load conditions, wiring methods, whether the N-1 verification is passed, the annual power supply growth, and the maximum load growth of the distribution network equipment;

[0016] The score of the distribution network equipment is calculated by comparing it with the preset weights of various distribution network equipment, load conditions, wiring methods, whether the N-1 check is passed, the annual power supply growth, and the maximum load growth.

[0017] 12. As a preferred solution of the state evaluation method for distribution network construction and transformation strategy described in the present invention, wherein: the distribution network equipment is divided into Class I-IV distribution network equipment according to cluster analysis, wherein the Class I distribution network equipment, in terms of investment strategy, focuses on the coordinated improvement of multi-level benefits, and is inclined to projects such as meeting new load demands, target grids, and upgrading and transformation of medium and low voltage power grids, while paying attention to the development of diversified loads; the Class II distribution network equipment, in terms of investment strategy, should give priority to solving heavy overloads and projects that meet new load demands, and improve the overall investment efficiency level of the line; the Class III distribution network equipment, in terms of investment strategy, should control the scale of grid investment, avoid large-scale demolition and construction, and steadily improve line benefits; the Class IV distribution network equipment, in terms of investment strategy, guarantees basic power supply and avoids investment redundancy.

[0018] 13. As a preferred embodiment of the state evaluation method for distribution network construction and transformation strategy of the present invention, the state evaluation method for distribution network construction and transformation strategy is characterized in that: the distribution network project timing optimization plan is formulated according to the analysis results, and the plan is evaluated to obtain an evaluation score, including:

[0019] Under the premise of ensuring the safe operation of various distribution network equipment and meeting the regional power demand, determine the distribution network timing optimization planning scheme;

[0020] According to the construction and transformation sequence of distribution network equipment, the construction investment, power supply reliability and comprehensive voltage qualification rate indicators are optimized and the scheme is evaluated, and adaptively matched with the system weight score;

[0021] Output a project timing optimization plan that meets preset standards.

[0022] 14. As a preferred solution of the state evaluation method for distribution network construction and transformation strategy described in the present invention, wherein: under the premise that various distribution network equipment operates safely and meets regional electricity demand, determining the distribution network project optimization planning solution includes:

[0023] The construction and renovation scale of Class I distribution network equipment will be expanded to coordinate the scale of the power grid with the growth of load, meet the needs of rapid economic development, and meet the electricity demand of high-reliability users;

[0024] Class II distribution network equipment maintains grid input to meet the region’s new electricity demand, giving priority to meeting the electricity demand of key areas such as tourist areas;

[0025] Class III distribution network equipment controls the investment in power grid construction and transformation to prevent the line load rate from being too low;

[0026] No more funds will be invested in grid construction and renovation of Class IV distribution network equipment. The distribution network equipment will be rotated in accordance with the management concept of the entire life cycle of assets. Old distribution network equipment that is currently operating well and has a low failure rate will not be replaced.

[0027] As a preferred solution of the state evaluation method for distribution network construction and transformation strategy described in the present invention, wherein: the output of the planning scheme that meets the preset standards includes:

[0028] If the evaluation score of the planning scheme does not reach the preset value, the indicators will be reselected and the weights of each indicator will be determined, and the distribution network equipment will be evaluated;

[0029] If the evaluation score of the planning scheme reaches the preset value, the distribution network equipment score is output to complete the timing optimization of the distribution network project.

[0030] In a second aspect, an embodiment of the present invention provides a state evaluation method system for a distribution network construction and transformation strategy, which includes:

[0031] The data acquisition module is used to obtain the data of the distribution network equipment and transmit the obtained data to the data processing module;

[0032] The data processing module is used to classify the acquired distribution network equipment data and conduct adaptability matching analysis with the preset weights of various distribution network equipment indicators to determine the classification of distribution network equipment construction requirements;

[0033] The planning module is used to determine the planning scheme under the premise of meeting the safe operation of distribution network equipment and the power demand of users;

[0034] Comprehensive score calculation module, used to determine indicators according to the planning scheme, and conduct adaptability matching analysis with preset indicator weights of various distribution network equipment;

[0035] The management module is used to receive the resulting planning scheme and complete the timing optimization of the distribution network project.

[0036] In a third aspect, an embodiment of the present invention provides a computer network distribution device, including a memory and a processor, wherein the memory stores a computer program, wherein: when the processor executes the computer program, any step of the above method is implemented.

[0037] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: the computer program implements any step of the above method when executed by a processor.

[0038] The beneficial effects of the present invention are as follows: considering the status evaluation of the distribution network construction and transformation strategy, the economy of the power grid construction investment is improved, and the effect of further determining the project priority and maximizing the resource allocation efficiency is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0040] Figure 1 Flowchart of the state assessment method for distribution network construction and transformation strategy. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0044] Example 1

[0045] Reference Figure 1 , which is the first embodiment of the present invention, and which provides a state evaluation method for distribution network construction and transformation strategy, including:

[0046] S100: Acquire distribution network equipment data, including load data and model data of the distribution network equipment.

[0047] S200: Classify the acquired distribution network equipment data, and perform adaptability matching analysis with preset indicator weights of various types of distribution network equipment to obtain analysis results.

[0048] It should be noted that based on the obtained distribution network equipment data, the load conditions, wiring methods, whether the N-1 verification is passed, the annual power supply growth and the maximum load growth of the distribution network equipment are mastered and compared with the preset various types of distribution network equipment, load conditions, wiring methods, whether the N-1 verification is passed, the annual power supply growth and the maximum load growth to determine the distribution network equipment score.

[0049] It should be noted that the status of distribution network equipment can be divided into four categories, namely Class I to Class IV distribution network equipment, according to the scores.

[0050] S300: Develop a distribution network project timing optimization plan based on the analysis results, and conduct a plan evaluation to obtain an evaluation score.

[0051] It should be noted that the construction investment, power supply reliability rate and comprehensive voltage qualification rate indicators are optimized according to the construction and renovation timing of the distribution network equipment, and the scheme is evaluated and adaptively matched with the system weight score.

[0052] The construction and renovation scale of Class I distribution network equipment will be expanded to coordinate the scale of the power grid with the growth of load, meet the needs of rapid economic development, and meet the electricity demand of high-reliability users;

[0053] Class II distribution network equipment maintains grid input to meet the region’s new electricity demand, giving priority to meeting the electricity demand of key areas such as tourist areas;

[0054] Class III distribution network equipment controls the investment in power grid construction and transformation to prevent the line load rate from being too low;

[0055] No more funds will be invested in grid construction and renovation of Class IV distribution network equipment. The distribution network equipment will be rotated in accordance with the management concept of the entire life cycle of assets. Old distribution network equipment that is currently operating well and has a low failure rate will not be replaced.

[0056] S400: Output the planning scheme whose evaluation score meets the preset standard and complete the timing optimization of the distribution network project.

[0057] It should be noted that if the evaluation score of the planning scheme does not reach the preset value, the weight of each indicator will be re-established and the distribution network equipment will be evaluated;

[0058] If the evaluation score of the planning scheme reaches the preset value, the distribution network equipment score is output to complete the timing optimization of the distribution network project.

[0059] This embodiment also provides a status evaluation system for distribution network construction and transformation strategy, including:

[0060] The data acquisition module is used to obtain the data of the distribution network equipment and transmit the obtained data to the data processing module;

[0061] The data processing module is used to classify the acquired data of various distribution network equipment, and conduct adaptive matching analysis with the preset weights of various distribution network equipment indicators to determine the classification of distribution network equipment construction and transformation needs;

[0062] The planning module is used to determine the timing optimization planning scheme of the distribution network under the premise of ensuring the safe operation of various distribution network equipment and meeting the regional power demand;

[0063] The comprehensive score calculation module is used to determine the indicators of various distribution network devices and compare them with the preset scores of various distribution network devices, so as to obtain the timing optimization of the planning scheme that meets the preset standards;

[0064] The management module is used to receive the resulting planning scheme and complete the timing optimization of the distribution network project.

[0065] This embodiment also provides a computer distribution network device, which is applicable to the situation of the status evaluation method for the distribution network construction and transformation strategy, including:

[0066] Memory and processor; the memory is used to store computer executable instructions, and the processor is used to execute computer executable instructions to implement the state evaluation method for distribution network construction and transformation strategy proposed in the above embodiment.

[0067] The computer network distribution device may be a terminal, and the computer network distribution device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer network distribution device is used to provide computing and control capabilities. The memory of the computer network distribution device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer network distribution device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. The display screen of the computer network distribution device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer network distribution device may be a touch layer covered on the display screen, or a button, a trackball or a touchpad provided on the housing of the computer network distribution device, or an external keyboard, touchpad or mouse, etc.

[0068] This embodiment also provides a storage medium on which a computer program is stored. When the program is executed by a processor, the status evaluation for the distribution network construction and transformation strategy proposed in the above embodiment is implemented.

[0069] The storage medium proposed in this embodiment and the data storage method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be found in the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0070] Example 2

[0071] Reference Figure 1 , which is the second embodiment of the present invention, and this embodiment provides a state evaluation method for distribution network construction and transformation strategy. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through comparison.

[0072] Table 1 Comparison between traditional prior art and the present invention

[0073]

[0074] As can be seen from Table 1, the present invention makes revolutionary improvements on the basis of traditional existing technologies, considers determining the optimal project sequence based on the status evaluation of distribution network equipment, improves the economic efficiency of power grid construction investment, and achieves the effect of further determining project priorities and maximizing resource allocation benefits.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A state evaluation method for distribution network construction and transformation strategy, characterized by: include, Obtain distribution network equipment operation data and model data; The acquired distribution network equipment operation data and model data are classified, and the adaptability matching analysis is performed with the preset indicator weights of various distribution network equipment to obtain the analysis results; Optimize the order of construction and renovation of distribution network equipment based on the scores of various types of power grid equipment; Based on the preset weight values ​​of each type of equipment indicator, the output of each equipment score meets the preset standard equipment evaluation, and the timing optimization of the distribution network project is completed.

2. The state evaluation method for distribution network construction and transformation strategy according to claim 1, characterized in that: The distribution network equipment data includes load data and model data of the distribution network equipment.

3. The state evaluation method for distribution network construction and transformation strategy according to claim 2 is characterized in that: The obtained distribution network equipment data is classified and adaptive matching analysis is performed with the preset weights of various indicators to obtain the analysis results including: Based on the obtained distribution network equipment data, such as the load condition of the distribution network equipment, wiring method, whether the N-1 verification is passed, the annual power supply growth, and the maximum load growth; The scores of various distribution network devices are determined by matching them with the preset load conditions, wiring methods, whether the N-1 check is passed, the annual power supply growth, and the maximum load growth.

4. The method for evaluating the status of the distribution network construction and transformation strategy according to claim 3, characterized in that: According to cluster analysis, the distribution network equipment is divided into Class I to Class IV distribution network equipment. The Class I distribution network equipment, in terms of investment strategy, focuses on the coordinated improvement of multi-level benefits, and is inclined to projects that meet new load demands, target grids, and medium and low voltage power grid upgrades and renovations, while paying attention to the development of diversified loads; Class II distribution network equipment, in terms of investment strategy, should give priority to solving heavy overloads and projects that meet new load demands, and improve the overall investment efficiency level of the line; Class III distribution network equipment, in terms of investment strategy, should control the scale of grid investment, avoid large-scale demolition and construction, and steadily improve line efficiency; Class IV distribution network equipment, in terms of investment strategy, guarantees basic power supply and avoids investment redundancy.

5. The state evaluation method for distribution network construction and transformation strategy according to claim 4 is characterized in that: The distribution network project timing optimization plan is formulated according to the analysis results, and the plan is evaluated to obtain the evaluation score, including: Under the premise of ensuring the safe operation of various distribution network equipment and meeting the regional power demand, determine the distribution network timing optimization planning scheme; According to the construction and transformation sequence of distribution network equipment, the construction investment, power supply reliability rate and comprehensive voltage qualification rate indicators are optimized and distribution network equipment is evaluated, and adaptively matched with the system weight score; Output a project timing optimization plan that meets preset standards.

6. The method for evaluating the status of the distribution network construction and transformation strategy according to claim 5, characterized in that: Under the premise that all types of distribution network equipment operate safely and meet regional electricity demand, the optimization planning scheme for distribution network projects includes: The construction and renovation scale of Class I distribution network equipment will be expanded to coordinate the scale of the power grid with the growth of load, meet the needs of rapid economic development, and meet the electricity demand of high-reliability users; Class II distribution network equipment maintains grid input to meet the region’s new electricity demand, giving priority to meeting the electricity demand of key areas such as tourist areas; Class III distribution network equipment controls the investment in power grid construction and transformation to prevent the line load rate from being too low; No more funds will be invested in grid construction and renovation of Class IV distribution network equipment. The distribution network equipment will be rotated in accordance with the management concept of the entire life cycle of assets. Old distribution network equipment that is currently operating well and has a low failure rate will not be replaced.

7. The method for evaluating the status of the distribution network construction and transformation strategy according to claim 6, characterized in that: The output of the planning scheme that meets the preset standards includes: If the evaluation score of the distribution network equipment does not reach the preset value, the indicators are reselected and the weights of each indicator are determined, and the distribution network equipment is evaluated; If the evaluation score of the planning scheme reaches the preset value, the distribution network equipment score is output to complete the timing optimization of the distribution network project.

8. A state evaluation method system for distribution network construction and transformation strategy, based on the state evaluation method for distribution network construction and transformation strategy according to claims 1 to 7, characterized in that: include, The data acquisition module is used to obtain the data of the distribution network equipment and transmit the obtained data to the data processing module; The data processing module is used to classify the acquired distribution network equipment data, and conduct adaptive matching analysis with the preset weights of various distribution network equipment indicators to determine the construction and transformation timing of distribution network equipment; The planning module is used to determine the optimal timing of construction and transformation of distribution network equipment based on the evaluation of distribution network equipment, on the premise of ensuring the safe operation of various distribution network equipment and meeting the regional power demand; The comprehensive score calculation module is used to compare the distribution network equipment scores with the preset backup scores to obtain the optimal planning solution that meets the preset standards; The management module is used to receive the obtained project priority ranking and complete the timing optimization of distribution network projects.

9. A computer network distribution device, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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