Novel power system power distribution network planning method and system

Abstract

The invention relates to the field of power distribution network optimization, in particular to a novel power system power distribution network planning method and system, and the method comprises the following steps: step 1, data collection, step 2, mathematical modeling, step 3, simulation analysis, step 4, optimization design, step 5, feasibility evaluation, step 6, scheme making, and step 7, scheme implementation. The method comprises the following steps: firstly, collecting and arranging related data through a data management module; then visual display and spatial analysis are carried out by utilizing a geographic information system module; performing multi-aspect planning analysis through a planning analysis module; an optimal planning scheme is found by using an optimization planning module; finally, a detailed planning report is generated through a report generation module, automation and intelligentization of power distribution network planning are achieved through modular design, meanwhile, all the modules cooperate with one another, a complete planning system is formed, and the planning efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the field of power distribution network optimization, and in particular to a novel power system power distribution network planning method and system. Background Art

[0002] As an important part of the entire power grid, the urban distribution network can be divided into three parts: high-voltage distribution network, medium-voltage distribution network and low-voltage distribution network. In the development process of my country's power industry, power construction has focused on the construction of power generation and power supply side networks, while ignoring the construction of distribution and power consumption side networks, resulting in a chaotic and weak structure of the distribution network, backward and obsolete equipment in the distribution network, a very large power supply radius in some areas, and the conductor cross-section cannot meet the requirements of economic operation. The insulation level and reactive power compensation are seriously insufficient, which easily leads to poor power quality and low reliability of the distribution network, making the distribution network recover slowly during power outages. The current solution is basically that when the load of the power grid increases, one or more lines will be temporarily added to cope with it, resulting in a chaotic structure of the distribution network. The invested funds are sometimes not only difficult to play the due benefits, but also bring troubles to the normal operation of the distribution network.

[0003] When renovating existing distribution networks or building new ones, the current situation should be fully considered, and the structure of the distribution network should be uniformly planned based on accurate load forecasting and detailed network topology analysis. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a novel method and system for planning a power distribution network.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: A novel power system distribution network planning method of the present invention comprises the following steps:

[0008] Step 1: Data collection: Collect all data related to the distribution network, including power demand, grid structure, equipment parameters, etc.

[0009] Step 2: Mathematical modeling: Based on the collected data, a mathematical model is established, which can describe the operating status and performance of the distribution network;

[0010] Step 3: Simulation analysis: Use the established mathematical model to conduct simulation analysis to determine the advantages and disadvantages of the existing distribution network;

[0011] Step 4: Optimization design: Based on the results of simulation analysis, optimize the design of the distribution network to improve its reliability, economy and adaptability;

[0012] Step 5: Feasibility assessment: Conduct a feasibility assessment on the optimized distribution network to ensure the feasibility of its implementation;

[0013] Step 6: Plan formulation: formulate a specific implementation plan based on the results of the feasibility assessment;

[0014] Step 7: Implementation of the plan: Construct and renovate the distribution network according to the implementation plan.

[0015] Preferably, the data collection includes collecting distribution network related data from multiple data sources, namely, power grid operation and equipment detection data, power enterprise marketing data, power enterprise management data, and population and electricity load data.

[0016] Further preferably, the optimization design includes a power and electricity balancing strategy based on multi-scenario analysis:

[0017] It includes obtaining the grid structure, main transformer load rate, substation interval resources, feeder form, line capacity, line load rate and connection form; optimizing the distribution network grid structure from multiple angles, analyzing the safety of the main transformer line, and analyzing the access methods that do not meet the safety requirements; comprehensively comparing the economic and technical aspects of each plan.

[0018] The power distribution network planning system in the present invention includes a data management module, a geographic information system module, a planning analysis module, an optimization planning module and a report generation module;

[0019] S1, Data management module: This module is responsible for collecting, organizing and storing relevant data of the distribution network, including power demand, grid structure and equipment parameters;

[0020] S2, Geographic Information System Module: This module integrates the GIS technology, combines the distribution network data with geographic information, and realizes the visualization and spatial analysis of the distribution network;

[0021] S3, Planning and Analysis Module: This module uses mathematical models and algorithms to conduct multi-faceted planning and analysis of the distribution network, including reliability analysis, economic analysis, and adaptability analysis;

[0022] S4, optimization planning module: This module uses artificial intelligence technology to optimize the planning of the distribution network based on the results of planning analysis, finds the optimal planning scheme through iterative calculation of intelligent algorithms, and improves the reliability and economy of the distribution network;

[0023] S5. Report generation module: This module generates detailed planning reports based on the results of the optimized planning.

[0024] Preferably, the data management module includes a data collection submodule and a data sorting submodule, which are used to collect and sort relevant data of the distribution network.

[0025] Further preferably, the planning and analysis module includes a reliability analysis submodule, an economic analysis submodule and an adaptability analysis submodule, which are used to perform multi-faceted intelligent analysis on the distribution network.

[0026] Again preferably, the report generated by the report generating module includes a planning scheme, an investment estimate and an operation effect forecast.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the present invention provides a novel power system distribution network planning method and system, which has the following beneficial effects:

[0029] The present invention first collects and organizes relevant data through a data management module; then uses a geographic information system module for visual display and spatial analysis; then uses a planning analysis module to perform multi-faceted planning analysis; then uses an optimization planning module to find the optimal planning scheme; finally, a detailed planning report is generated through a report generation module. Through modular design, the automation and intelligence of distribution network planning are realized. At the same time, the modules cooperate with each other to form a complete planning system, which improves planning efficiency and accuracy. The planning method has a high degree of automation and flexibility, and can be adjusted and optimized according to different regions and different situations, thereby improving its reliability and economy. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] A novel power system distribution network planning method of the present invention comprises the following steps:

[0032] Step 1: Data collection: Collect all data related to the distribution network, including power demand, grid structure, equipment parameters, etc.

[0033] Step 2: Mathematical modeling: Based on the collected data, a mathematical model is established, which can describe the operating status and performance of the distribution network;

[0034] Step 3: Simulation analysis: Use the established mathematical model to conduct simulation analysis to determine the advantages and disadvantages of the existing distribution network;

[0035] Step 4: Optimization design: Based on the results of simulation analysis, optimize the design of the distribution network to improve its reliability, economy and adaptability;

[0036] Step 5: Feasibility assessment: Conduct a feasibility assessment on the optimized distribution network to ensure the feasibility of its implementation;

[0037] Step 6: Plan formulation: formulate a specific implementation plan based on the results of the feasibility assessment;

[0038] Step 7: Implementation of the plan: Construct and renovate the distribution network according to the implementation plan.

[0039] In order to ensure the accuracy of power data collection during distribution network planning, the data collection in the present invention includes collecting relevant data of the distribution network from multiple data sources, namely power grid operation and equipment detection data, power company marketing data, power company management data, and population and electricity load data. The power grid operates the power production and power use of power generation, transmission, transformation, distribution, power consumption and dispatching links. The large population and the amount of power load are one of the key points throughout the entire distribution network planning. The collected data can be used for subsequent distribution planning.

[0040] In order to ensure the feasibility of the distribution network planning scheme and the safety of the distribution network during use, the preferred scheme of the present invention is that the optimization design includes a power balance strategy based on multi-scenario analysis:

[0041] It includes obtaining the grid structure, main transformer load rate, substation interval resources, feeder form, line capacity, line load rate and connection form; optimizing the distribution network grid structure from multiple angles, analyzing the safety of the main transformer line, and analyzing the access methods that do not meet the safety requirements; comprehensively comparing the economic and technical aspects of each plan.

[0042] The power distribution network planning system in the present invention includes a data management module, a geographic information system module, a planning analysis module, an optimization planning module and a report generation module;

[0043] S1, Data management module: This module is responsible for collecting, organizing and storing relevant data of the distribution network, including power demand, grid structure and equipment parameters;

[0044] S2, Geographic Information System Module: This module integrates the GIS technology, combines the distribution network data with geographic information, and realizes the visualization and spatial analysis of the distribution network;

[0045] S3, Planning and Analysis Module: This module uses mathematical models and algorithms to conduct multi-faceted planning and analysis of the distribution network, including reliability analysis, economic analysis, and adaptability analysis;

[0046] S4, optimization planning module: This module uses artificial intelligence technology to optimize the planning of the distribution network based on the results of planning analysis, finds the optimal planning scheme through iterative calculation of intelligent algorithms, and improves the reliability and economy of the distribution network;

[0047] S5. Report generation module: This module generates detailed planning reports based on the results of the optimized planning.

[0048] According to the above scheme, through the data management module, data resources can be effectively managed and utilized to provide data support for subsequent planning and analysis; through the geographic information system module, the distribution and operation of the distribution network can be more intuitively understood; through the planning analysis module, the performance of the existing distribution network can be comprehensively evaluated to provide a basis for optimization planning. The report content includes planning schemes, investment estimates and operation effect predictions. Through the report generation module, the results of the optimization planning can be presented to users in an intuitive form.

[0049] In order to facilitate unified organization of data after collection, facilitate data viewing, or serve as the orderliness of basic applications in the distribution network planning process, the preferred scheme in the present invention is that the data management module includes a data collection submodule and a data organization submodule, which are used to collect and organize relevant data of the distribution network.

[0050] In order to facilitate the analysis effect of the planning and analysis module, the preferred scheme in the present invention is that the planning and analysis module includes a reliability analysis submodule, an economic analysis submodule and an adaptability analysis submodule, which are used to perform multi-faceted intelligent analysis of the distribution network. According to the above structure, a separate analysis module is used to perform separate analysis on the reliability, economic analysis and adaptability of the distribution network application to ensure the feasibility of the scheme.

[0051] Through modular design, the automation and intelligence of distribution network planning are realized. At the same time, the modules cooperate with each other to form a complete planning system, which improves the planning efficiency and accuracy. First, the relevant data is collected and sorted through the data management module; then the geographic information system module is used for visualization and spatial analysis; then the planning analysis module is used for multi-faceted planning analysis; the optimization planning module is used to find the optimal planning scheme; finally, a detailed planning report is generated through the report generation module, and the specific implementation process can be adjusted and modified according to the actual situation.

[0052] By adopting the planning method of the present invention, we have successfully planned and transformed the distribution network of a certain city, improving its reliability and economy. At the same time, the planning method has a high degree of automation and flexibility, and can be adjusted and optimized according to different regions and different situations.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel power system distribution network planning method, characterized in that: The following steps are involved: Step 1: Data collection: Collect all data related to the distribution network, including power demand, grid structure, equipment parameters, etc. Step 2: Mathematical modeling: Based on the collected data, a mathematical model is established, which can describe the operating status and performance of the distribution network; Step 3: Simulation analysis: Use the established mathematical model to conduct simulation analysis to determine the advantages and disadvantages of the existing distribution network; Step 4: Optimization design: Based on the results of simulation analysis, optimize the design of the distribution network to improve its reliability, economy and adaptability; Step 5: Feasibility assessment: Conduct a feasibility assessment on the optimized distribution network to ensure the feasibility of its implementation; Step 6: Plan formulation: formulate a specific implementation plan based on the results of the feasibility assessment; Step 7: Implementation of the plan: Construct and renovate the distribution network according to the implementation plan.

2. A new power system distribution network planning method according to claim 1, characterized in that: The data collection includes collecting distribution network related data from multiple data sources, including power grid operation and equipment detection data, power enterprise marketing data, power enterprise management data, and population and electricity load data.

3. A new power system distribution network planning method according to claim 2, characterized in that: The optimization design includes a power balance strategy based on multi-scenario analysis: Including obtaining grid structure, main transformer load rate, substation interval resources, feeder form, line capacity, line load rate and connection form; Optimize the distribution network structure from multiple angles, analyze the safety of the main transformer lines, and analyze the access methods that do not meet the safety requirements; Comprehensively consider the economic and technical feasibility of each plan and conduct a comparison of the plans.

4. A new type of power system distribution network planning system applied by a new type of power system distribution network planning method according to claim 3, characterized in that: It includes data management module, geographic information system module, planning analysis module, optimization planning module and report generation module; S1, Data management module: This module is responsible for collecting, organizing and storing relevant data of the distribution network, including power demand, grid structure and equipment parameters; S2, Geographic Information System Module: This module integrates the GIS technology, combines the distribution network data with geographic information, and realizes the visualization and spatial analysis of the distribution network; S3, Planning and Analysis Module: This module uses mathematical models and algorithms to conduct multi-faceted planning and analysis of the distribution network, including reliability analysis, economic analysis, and adaptability analysis; S4, optimization planning module: This module uses artificial intelligence technology to optimize the planning of the distribution network based on the results of planning analysis, finds the optimal planning scheme through iterative calculation of intelligent algorithms, and improves the reliability and economy of the distribution network; S5. Report generation module: This module generates detailed planning reports based on the results of the optimized planning.

5. A new type of power system distribution network planning system according to claim 4, characterized in that: The data management module includes a data collection submodule and a data sorting submodule, which are used to collect and sort the relevant data of the power distribution network.

6. A new type of power system distribution network planning system according to claim 5, characterized in that: The planning and analysis module includes a reliability analysis submodule, an economic analysis submodule and an adaptability analysis submodule, and is used to perform multi-faceted intelligent analysis on the distribution network.

7. A new type of power system distribution network planning system according to claim 6, characterized in that: The report generation module generates reports including planning schemes, investment estimates and operation effect forecasts.