电力系统自动化2016，Vol.40Issue(6)：30-34,84,6.DOI:10.7500/AEPS20150602006
基于相似性的双馈风机小干扰稳定性分析及锁相环的影响
Similarity-based Small-signal Stability Analysis of DFIG-based Wind Turbines and Influence of Phase-locked Loop
摘要
Abstract
According to the basic theories of power angle and small-signal stability of synchronous generators,the small-signal stability of the doubly-fed induction generator (DFIG) based wind turbine is analyzed in terms of voltage vector space relationships and the small-signal analysis model.Firstly,the power angle of DFIG-based wind turbine is defined according to the space relationship between the terminal voltage and the internal electric potential.Then,the small-signal analysis model of DFIG-based wind turbine is built based on the dynamic equations of phase-locked loop (PLL).And the similarity of DFIG-based wind turbine is studied compared with that of synchronous generator.Furthermore,the impacts of PLL parameters on the small-signal stability of DFIG-based wind turbine are analyzed.The study shows that the PLL parameter is determinant to the small-signal stability of DFIG-based wind turbine.The small-signal instability of DFIG-based wind turbine may occur with inappropriate selection of parameters of PLL.Finally,the influences of PLL with different parameters on the power angle variation and the small-signal stability of DFIG-based wind turbine are verified by modal analysis and time domain simulation.关键词
风力发电/双馈感应发电机/锁相环/小干扰稳定/相似性/模态分析Key words
wind power generation/doubly-fed induction generator (DFIG)/phase-locked loop/small-signal stability/similarity/modal analysis引用本文复制引用
王清,毕天姝,薛安成..基于相似性的双馈风机小干扰稳定性分析及锁相环的影响[J].电力系统自动化,2016,40(6):30-34,84,6.基金项目
国家重点基础研究发展计划(973计划)资助项目(2012CB215206) （973计划）
国家自然科学基金资助项目(51477050,51190103)。This work is supported by National Basic Research Program of China(973 Program)(No.2012CB215206) and National Natural Science Foundation of China(No.51477050,No.51190103) （51477050,51190103）
