电力系统保护与控制2025，Vol.53Issue(4)：85-95,11.DOI:10.19783/j.cnki.pspc.240353
基于电流内环滑模自抗扰控制的直驱风电场次同步振荡抑制策略研究
Sub-synchronous oscillation suppression strategy for direct-drive wind farm based on current inner loop sliding mode active disturbance rejection control
摘要
Abstract
A sliding mode active disturbance rejection control(SM-ADRC)strategy based on the current inner loop of the grid-side converter is proposed to address the problem of sub-synchronous oscillation(SSO)resulting from the amplification of the SSO components.First,considering the issue of high-frequency switching in sliding mode control(SMC)that affects the control performance,an improved exponential reaching law is designed,by replacing the original sign function with a boundary variable power function in the reaching law.Then,an extended state observer with active disturbance rejection control is introduced to estimate the SSO components in real-time and compensate for the current inner loop as observed quantities.This weakens the dependence of SM-ADRC control on the parameters of the grid-side controller and further cuts off the propagation path of the SSO components.Finally,an electromagnetic transient model of the direct-drive wind farm based on grid-side current inner loop SM-ADRC control is established.By comparing the SSO suppression effect with the current inner loop PI control and SMC control,the superiority of the proposed SM-ADRC strategy is verified.关键词
直驱风电场/弱交流电网/次同步振荡/滑模自抗扰控制Key words
direct-drive wind farm/weak AC grid/sub-synchronous oscillation/sliding mode active disturbance rejection control引用本文复制引用
郭成,杨宣铭,王林玲,杨灵睿..基于电流内环滑模自抗扰控制的直驱风电场次同步振荡抑制策略研究[J].电力系统保护与控制,2025,53(4):85-95,11.基金项目
This work is supported by the National Natural Science Foundation of China(No.52367002). 国家自然科学基金项目资助(52367002) （No.52367002）
云南省科技厅联合基金重点项目资助(202201BE070001-15) （202201BE070001-15）
