基于模糊控制的高压电网波动自适应变频控制方法及系统

By constructing a fuzzy control method with a two-dimensional arbitration space and a dynamic update mechanism, the decision-making deadlock caused by multi-peak membership functions in high-voltage power grids is solved, accurate control under complex fluctuations is achieved, the adaptability and stability of the power grid are improved, and the risk of resonance is reduced.

CN121529646BActive Publication Date: 2026-07-17JINING MINING GRP HAINA TECH ELECTROMECHANICAL CO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINING MINING GRP HAINA TECH ELECTROMECHANICAL CO
Filing Date
2025-12-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional fuzzy control methods face decision-making deadlock problems caused by multi-peak membership functions in high-voltage power grids. Especially when subsynchronous oscillations and low-frequency oscillations are superimposed, the control commands lack specificity, which may lead to resonance risks and make it difficult to meet the high standards of control accuracy and adaptability required by modern power grids.

Method used

A high-voltage power grid fluctuation adaptive frequency conversion control method based on fuzzy control is adopted. By constructing a two-dimensional arbitration space, a comprehensive arbitration mechanism of rule confidence factor and system stability cost value is introduced to identify local peak points, calculate comprehensive arbitration index, select the optimal control command, and optimize the control strategy by combining the dynamic update mechanism of historical knowledge base.

Benefits of technology

It effectively solves the decision-making deadlock of the traditional center-of-gravity method under multi-peak membership functions, ensures accurate control decisions under complex fluctuations, improves the adaptability and stability of the power grid, reduces resonance risk, and enhances the robustness of the system.

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Abstract

本发明涉及电力系统自动控制技术领域,具体公开了基于模糊控制的高压电网波动自适应变频控制方法及系统,通过采集电网运行参数,经模糊推理生成包含多个候选控制指令的输出隶属度函数;通过计算各指令的规则置信度因子和系统稳定性代价值,构建二维仲裁空间并确定理想参考点,基于空间距离计算综合仲裁指标;采用动态容错机制选定最终控制指令,实现电网频率精准调节;最后通过效能评估和非线性更新机制优化历史知识库;本发明解决了多峰隶属度函数导致的决策僵局问题,提升了复杂工况下的控制精度和系统自适应能力。
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