电力系统及其自动化学报2026，Vol.38Issue(6)：1-11,11.DOI:10.19635/j.cnki.csu-epsa.001632
不对称电压跌落下考虑序分量的双馈风机故障穿越
Fault Ride-through of Doubly-fed Induction Generator Considering Sequence Components Under Asymmetrical Voltage Dips
摘要
Abstract
Under the condition of asymmetrical grid voltage dips,the negative-sequence voltage component significant-ly impairs the stable operation of a doubly-fed induction generator(DFIG).In this paper,a negative-sequence compo-nent suppression method is proposed through the optimized control of a rotor-side converter(RSC)in the DFIG.First,to address the output phase deviation issue in the traditional phase-locked loop(PLL)under the condition of asymmet-ric voltage,a dual improved second-order generalized integrator is introduced into the conventional PLL structure to en-hance its phase-tracking accuracy,and the phase information is further utilized in the dual control of the RSC.Second,to mitigate the overcurrent problem in the RSC during asymmetrical voltage dips,a control method incorporating addi-tional positive-and negative-sequence virtual resistances on the rotor side is proposed,so as to enhance the fault ride-through capability of the DFIG under the condition of asymmetrical voltage dips and extend its fault ride-through range.Finally,a simulation model was developed on the MATLAB/Simulink platform,and experiments were conducted using the StarSim hardware-in-the-loop experimental platform to validate the effectiveness and feasibility of the proposed meth-od.关键词
双馈风机/不对称电压跌落/负序分量/改进双二阶广义积分器/正负序虚拟电阻Key words
doubly-fed induction generator(DFIG)/asymmetrical voltage dip/negative-sequence component/dual im-proved second-order generalized integrator/positive-and negative-sequence virtual resistances分类
信息技术与安全科学引用本文复制引用
张哲,兰镨漩..不对称电压跌落下考虑序分量的双馈风机故障穿越[J].电力系统及其自动化学报,2026,38(6):1-11,11.基金项目
国家重点研发计划资助项目(2024YFE0213000). （2024YFE0213000）
