Rural power grid optimization method and system considering dynamic load rhythmicity

CN120855261APending Publication Date: 2025-10-28ECONOMIC & TECH RES INST OF HUBEI ELECTRIC POWER COMPANY SGCC +1
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Patent Information

Application Number
CN202510705163.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

Rural power grids suffer from significant disparities in power supply capacity and load distribution, leading to resource waste and increased power supply costs. Existing static planning schemes are unable to accurately match load evolution trends, and traditional expansion methods are costly and inefficient.

Method used

A rural power grid optimization model is constructed, combining flexible power supply resources (such as on-board transformers and electric inspection vehicles) and fixed power supply resources (such as main transformers and lines). Power supply resource configuration is optimized through simulation calculations, taking into account load rhythmicity and portable loads, and dynamically adjusting power supply capacity to minimize costs.

Benefits of technology

While ensuring the grid load capacity, it reduced power supply costs, made full use of the complementary characteristics of various power supply resources, avoided resource waste, optimized the uneven growth of load, realized flexible power supply resource allocation and load migration, and reduced the cost of expanding fixed resources.

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Abstract

The invention belongs to the technical field of rural power grid expansion planning, and particularly relates to a rural power grid optimization method and system considering dynamic load rhythmicity, the method takes minimization of power supply cost as a target to construct a rural power grid optimization model, and model constraints comprise a flexible power supply resource constraint and a power grid power balance constraint. The power grid power balance constraint considers the typical characteristics of rhythmic resident load and rhythmic industrial load, the flexible power supply resources comprise a vehicle-mounted transformer and an electric inspection vehicle, and the power supply cost comprises the use cost of the vehicle-mounted transformer and the use cost of the electric inspection vehicle; and solving the model through simulation calculation to obtain a rural power grid optimization scheme. According to the method, typical characteristics of rhythmic resident loads and rhythmic industrial loads widely existing in rural power grids are considered, and high power supply cost caused by large-scale main transformer / line expansion in a traditional planning scheme is reduced by using flexible power supply resources.
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