Reactive power optimization configuration method and system for extra-high-voltage direct-current sending-end power grid and readable storage medium

By constructing the topological structure model of the UHV DC transmitting terminal power grid and optimizing the camera configuration using quantum genetic algorithm, the transient voltage rise problem in the power grid is solved and the operation stability of the power grid is improved.

CN119726982APending Publication Date: 2025-03-28STATE GRID GANSU ELECTRIC POWER RESEARCH INSTITUTE +3
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Patent Information

Application Number
CN202411289631.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the UHV DC transmission and transmission terminal power grid, the transient voltage rise problem leads to unstable power grid operation, especially when the wind farm is connected to the grid, which can easily cause large-scale fans to be disconnected from the grid, threatening the safety of the system.

Method used

By constructing the topological structure model of the UHV DC transmission terminal power grid, the configuration scheme of the camera is optimized by using quantum genetic algorithm to suppress transient voltage rise. Specific steps include obtaining topological structure data, analyzing the grid voltage and reactive sensitivity, initializing the population and optimizing it to obtain the final camera configuration scheme.

Benefits of technology

It effectively suppresses the transient voltage rise of the UHV DC transmission and transmission terminal power grid, improves the operating stability of the power grid, and reduces the risk of high-voltage disconnection of the fan caused by the transient voltage rise.

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Abstract

The invention discloses a reactive power optimization configuration method and system for an extra-high-voltage direct-current sending-end power grid and a readable storage medium, and belongs to the technical field of power grid optimization configuration. The method comprises the following steps: acquiring topological structure data of an extra-high-voltage direct-current sending-end power grid to construct a power grid model; determining the number and working parameters of phase modifiers to be configured according to the topological structure data; analyzing the voltage and reactive sensitivity of the extra-high voltage direct current sending end power grid based on the power grid model to obtain an initial node set of the access position of the phase modifier; and initializing a population based on the initial node set, each individual in the population representing a phase modifier configuration scheme, and optimizing the phase modifier configuration scheme by using a quantum genetic algorithm to obtain a final phase modifier configuration scheme. According to the method, the position of the access point of the phase modifier is optimally configured, the transient voltage rise of an extra-high voltage direct current transmission sending end power grid can be inhibited, and the operation stability of the power grid is effectively improved.
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