电网技术2012，Vol.36Issue(2)：231-236,6.
基于有限元法的双馈风力发电机电磁场计算与分析
Finite Element Based Electromagnetic Field Simulation and Analysis of Doubly Fed Induction Generator
摘要
Abstract
Based on finite element analysis platform ANSYS, a two-dimensional electromagnetic field model of doubly fed induction generator （DFIF）, whose capacity is 1.5MW and is installed in a certain wind farm located in the Xinjiang Uygur Autonomous Region, is established. Using finite element analysis, the distribution of magnetic line of force in DFIG and the distribution of air-gap flux density under normal operation conditions, single-phase earth fault and two-phase short-circuit fault occurred in DFIG are calculated, and the influences of asymmetrical short-circuit on DFIG are analyzed. Analysis results show that asymmetrical short-circuit occurred in DFIG leads to evident distortion of its air-gap magnetic field and flux leakage increases, and its additional iron loss and surface iron loss of stator remarkably increase; above mentioned iron losses under single-phase earth fault is bigger than those under two-phase short-circuit fault; the harmonic emf induced in DFIG will lead to magnetic vibration and noise of induction generator.关键词
双馈感应发电机/定子/不对称短路/ANSYS/电磁场/有限元分析Key words
doubly fed induction generator （DFIG）/stator/asymmetrical short circuit/ANSYS/electromagnetic field/finite element analysis分类
信息技术与安全科学引用本文复制引用
段晓田,张新燕,张俊,王厚军,何山..基于有限元法的双馈风力发电机电磁场计算与分析[J].电网技术,2012,36(2):231-236,6.基金项目
国家自然科学基金项目 （）
新疆维吾尔族自治区高校科研计划项目（XJEDU2007105）. （）
