一种基于优化线性自抗扰控制器构建微电网方法

By optimizing the combination of the linear active disturbance rejection controller and the fuzzy logic parameter dynamic adjustment module, the problem of frequency instability in the virtual synchronous generation control model was solved, and the microgrid achieved rapid frequency stabilization and disturbance rejection capability under load changes.

CN122159274BActive Publication Date: 2026-07-17YALONG RIVER HYDROPOWER DEV CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YALONG RIVER HYDROPOWER DEV CO LTD
Filing Date
2026-05-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing virtual synchronous generation control model's secondary frequency regulation control strategy suffers from problems such as poor overshoot suppression, slow response speed, weak anti-interference capability, and inability to dynamically optimize parameters, resulting in frequency instability of the microgrid during load changes.

Method used

An optimized linear active disturbance rejection controller (AID) method is adopted, which combines a cascaded linear extended state observer and a fuzzy logic parameter dynamic adjustment module to adjust the controller parameters in real time, thereby enhancing the frequency stability and disturbance rejection performance of the microgrid.

Benefits of technology

It enables rapid frequency stabilization of the microgrid under load abrupt changes, improves the system's anti-disturbance performance and tracking accuracy, and enhances operational stability and robustness.

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Abstract

本发明公开一种基于优化线性自抗扰控制器构建微电网方法,所述自抗扰控制器将输入信号转换为状态空间与实际输出信号比较形成跟踪误差信号;所述模糊逻辑参数动态调节模块将跟踪误差信号通过比例增益放大形成第一控制信号;所述第一线性扩张状态观测器根据第一控制信号中跟踪误差信号反馈项实时调整第一控制信号速度、位置的基础状态及低频扰动输出第二控制信号;所述第二线性扩张状态观测器根据第一控制信号中跟踪误差信号反馈项实时对高频扰动或不确定态进行补偿输出第三控制信号;所述被控调节模块根据所输出的第二控制信号、第三控制信号调节控制对象驱动其输出信号与跟踪信号一致;本发明增强微电网抗扰能力、且使其鲁棒性显著提高。
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