A high-voltage directly-hung phase modifier excitation control structure and parameter joint optimization method

CN122371760APending Publication Date: 2026-07-10NORTH CHINA ELECTRIC POWER UNIV
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Patent Information

Application Number
CN202610361217.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-24
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing research has not adequately optimized the excitation control structure and parameters of high-voltage direct-connected synchronous condensers, resulting in insufficient dynamic reactive power support capability in power grids with high penetration of new energy sources, and an inability to effectively suppress system overvoltage.

Method used

A joint optimization method for the excitation control structure and parameters of a high-voltage direct-connected synchronous condenser is adopted. By constructing a mapping model and an improved artificial fish swarm algorithm, the combination of fixed and dynamic parameters is optimized to achieve rapid search for the optimal excitation control structure and parameters.

Benefits of technology

It significantly improves the dynamic response characteristics and voltage support effect of high-voltage direct-connected synchronous condensers, effectively suppresses system overvoltage, and enhances the safety and stability of the power grid and the level of renewable energy consumption.

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Abstract

This invention relates to the field of motor dynamic performance technology, specifically disclosing a method for jointly optimizing the excitation control structure and parameters of a high-voltage direct-connected synchronous condenser. The method includes: Step S1, establishing an excitation control system for the high-voltage direct-connected synchronous condenser; Step S2, optimizing the fixed parameter module by using the controlled variable method to determine the thyristor amplification factor that improves the system's voltage support performance, i.e., the optimal fixed parameters; Step S3, constructing a mapping model of an artificial neural network for searching and optimizing the dynamic parameter module; Step S4, using an improved artificial fish swarm algorithm to search and optimize the parameter combination of the dynamic parameter module, with minimizing the overvoltage prediction value as the optimization objective, to obtain the optimal dynamic parameter combination; Step S5, applying the optimal fixed parameters and the optimal dynamic parameter combination as the optimized excitation control parameters to the excitation control of the high-voltage direct-connected synchronous condenser. This invention can improve the dynamic response characteristics and voltage support effect of the high-voltage direct-connected synchronous condenser.
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