广东电力2024，Vol.37Issue(5)：1-9,9.DOI:10.3969/j.issn.1007-290X.2024.05.001
基于重复控制的改进电压谐波线性自抗扰控制研究
Research on Improved Voltage Harmonic Linear Active Disturbance Rejection Control Based on Repetitive Control
摘要
Abstract
When the microgrid containing hydrogen fuel cells operates in isolated islands,the ideal control effect cannot be achieved only by using the virtual synchronous generator(VSG)control technology as the outer ring.The introduction of linear active disturbance rejection control(LADRC)improves the anti-interference ability of the microgrid system.However,the linear extended state observer(LESO)in the traditional LADRC only has the ability to observe the step signal,while the nonlinear disturbance requires the system to track and suppress the periodic signal.Therefore,this paper proposes an improved LADRC strategy based on repetitive control.By using the characteristics of repetitive control to track and compensate for periodic input signals and disturbances with zero error,repetitive control is introduced into the LESO of LADRC to improve the observation performance of the system.Through comparing and analyzing the error transfer function Bode diagrams of LESO and LESO based on repetitive control respectively,the paper verifies the advantage of the proposed strategy for restraining nonlinear disturbance using MATLAB/SIMULINK simulation platform.关键词
氢燃料电池/虚拟同步发电机/自抗扰控制/扩张状态观测器/重复控制Key words
hydrogen fuel cell/virtual synchronous generator/active disturbance rejection control/extend state observer/repetitive control分类
信息技术与安全科学引用本文复制引用
张敏,温涛,王怀远..基于重复控制的改进电压谐波线性自抗扰控制研究[J].广东电力,2024,37(5):1-9,9.基金项目
福建省科技厅工业引导性(重点)项目(2019H0048) （重点）
