电力系统及其自动化学报2024，Vol.36Issue(5)：48-58,11.DOI:10.19635/j.cnki.csu-epsa.001329
构网型直驱风机的小信号建模及动态频率支撑策略
Small-signal Modeling and Dynamic Frequency Support Strategy for Permanent Magnetic Synchronous Generator under Grid-forming Control
摘要
Abstract
Aimed at the problem that the frequency and power of a traditional grid-forming permanent magnetic synchro-nous generator oscillate greatly under large disturbance,a dynamic frequency support strategy is proposed in this paper.First,a detailed small-signal modeling of the grid-forming permanent magnetic synchronous generator is carried out.Second,the influences of parameters in active frequency control and AC voltage control links on the frequency variation characteristics are analyzed through the dominant characteristic root trajectory,and a dynamic frequency support strate-gy with flexible control parameters is put forward accordingly.Finally,simulations are performed on the Matlab/Simu-link platform,which verifies the correctness of small-signal modeling and the effectiveness of the proposed strategy.It is concluded that this strategy can effectively reduce the frequency and power oscillations during the dynamic process.关键词
构网型控制/永磁直驱风机/小信号建模/主导特征根/动态频率支撑策略Key words
grid-forming control/permanent magnetic synchronous generator/small-signal modeling/dominant charac-teristic root/dynamic frequency support strategy分类
信息技术与安全科学引用本文复制引用
王健维,孟建辉,王毅,杨坚,汤义勤,王东旭..构网型直驱风机的小信号建模及动态频率支撑策略[J].电力系统及其自动化学报,2024,36(5):48-58,11.基金项目
国网浙江省电力有限公司科技项目(5211TZ230003) （5211TZ230003）
