电力系统自动化Issue(21)：71-76,6.DOI:10.7500/AEPS20130721004
双馈感应发电机转子匝间短路时定子电流谐波分析
Analysis on Stator Current Harmonics Characteristics with Rotor Winding Inter-turn Short Circuit Fault in DFIG
摘要
Abstract
More and more doubly-fed induction generators (DFIGs) are used in the ever important wind energy.The inter-turn short circuit fault in the rotor will cause great harm to the generator and the wind power system.This paper derives the stator current harmonics both in healthy status and during the rotor inter-turn short circuit fault,and compares the difference between them.At the same time,the work considers the affect of winding structure.On that basis,a mathematical model based on multi-loop theory is established,and used to calculate the current of stator and rotor both in normal and faulty conditions.At last,the harmonic content of the stator current in one branch,line to line and that in the circulation of one phase parallel branch are analysed.These harmonics components can be used for detection and diagnosis of rotor winding inter-turn short circuit fault criterion.关键词
双馈感应发电机/转子匝间短路/谐波分析/多回路理论/风力发电Key words
doubly-fed induction generator/rotor inter-turn circuit fault/harmonics analysis/multi-loop theory/wind power generation引用本文复制引用
李俊卿,王栋..双馈感应发电机转子匝间短路时定子电流谐波分析[J].电力系统自动化,2014,(21):71-76,6.基金项目
河北省自然科学基金资助项目(E2014502015)。This work is supported by Hebei Provincial Natural Science Foundation of China(No.E2014502015) （E2014502015）
