段晓田;张新燕;张俊;王厚军;何山;

• 1:新疆大学电气工程学院
• 2:昌吉电业局

摘要(Abstract)：

基于ANSYS有限元分析平台建立了新疆某风电场1.5 MW双馈风力发电机(double-fed induction generator,DFIG)的2维电磁场模型。基于有限元法对双馈发电机正常运行工况、单相接地短路、两相稳态短路时磁力线分布和气隙磁密分布进行了计算,分析了不对称短路故障对双馈发电机的影响。结果表明:在发生不对称短路故障时,双馈风力发电机的气隙磁场明显畸变,漏磁增多,其附加铁耗及定子表面铁耗显著增加;发生单相接地短路故障时的上述损耗均比两相短路故障时大;在发电机中感生的谐波电动势会引起发电机机械振动和噪声。

关键词(KeyWords)： 双馈感应发电机;定子;不对称短路;ANSYS;电磁场;有限元分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50767003,50867004);; 新疆维吾尔族自治区高校科研计划项目(XJEDU2007I05)~~

作者(Author): 段晓田;张新燕;张俊;王厚军;何山;

Email:

DOI: 10.13335/j.1000-3673.pst.2012.02.043

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