电力系统及其自动化学报2026，Vol.38Issue(8)：148-161,14.DOI:10.19635/j.cnki.csu-epsa.001837
基于逆系统方法的直驱永磁同步风电机组并网系统频率控制策略
Frequency Control Strategy for Direct-drive Permanent Magnet Synchronous Generator Grid-connected System Based on Inverse System Method
张芳 1吕凌飞 1隋浩1
作者信息
- 1. 智能配用电装备与系统全国重点实验室(天津大学),天津 300072||智能电网教育部重点实验室(天津大学),天津 300072
- 折叠
摘要
Abstract
Tooptimize the frequency regulation effect ona direct-drive permanent magnet synchronous generator(D-PMSG)grid-connected system,a frequency control strategy for the D-PMSG grid-connected system based on an inverse system method is proposedin this paper.First,the correction coefficient of the maximum mechanical power tracking curve for the wind turbine output is selected as acontrol variable,and a nonlinear system model for the D-PMSG grid-connected system is established.By applying the inverse system method,the analytical expression form of the optimal control law for the reference value of D-PMSG output active power is derived.The problem of manually presetting the initial droop coefficient in the existing variable droop control strategies is avoided,and the adaptive changein the con-trol variable ofthe wind turbine following the system's operating state is realized,enabling the D-PMSG to dynamically-regulate frequency according to load disturbances and changes inthe output power of synchronous generators.Second,D-PMSG rotor speed function and rotor speed recovery function are introduced into the optimal control law,so as to avoid excessive decrease in the D-PMSG rotor speed and achieve a smooth recovery of D-PMSG rotor speed.Finally,the effectiveness of theproposed frequency control strategy for the D-PMSG grid-connected system based on the inverse system method is verified through simulations,providing a new approach forresearch on the frequency control strategy-forthe D-PMSG grid-connected system.关键词
直驱永磁同步风电机组/逆系统方法/非线性控制/频率控制策略/调频优化Key words
direct-drive permanent magnet synchronous generator(D-PMSG)/inverse system method/nonlinear con-trol/frequency control strategy/frequency regulation optimization分类
信息技术与安全科学引用本文复制引用
张芳,吕凌飞,隋浩..基于逆系统方法的直驱永磁同步风电机组并网系统频率控制策略[J].电力系统及其自动化学报,2026,38(8):148-161,14.
