基于ANSOFT双馈异步风力发电机定子匝间短路故障性能分析  

Performance Analysis of Double-Fed Induction Wind Generator Stator Inter-Turn Short Circuit Fault Based on ANSOFT

作　　者：魏云冰[1] 刘天[1] 史觉玮 王东晖[1] 王瑞阳[1] 

机构地区：[1]郑州轻工业学院电气信息工程学院,郑州450002 [2]ABB有限公司杭州分公司,杭州310007

出　　处：《电测与仪表》2014年第13期60-65,共6页Electrical Measurement & Instrumentation

摘　　要：在双馈异步风力发电机的正常运行中,定子绕组匝间短路是最常见的故障之一,利用有限元法对双馈异步发电机进行分析,并借助有限元分析软件ANSOFT中的Maxwell 2D模块建立了双馈异步发电机的仿真模型,通过电机运行过程中的涡流损耗分析和仿真,得到了减小涡流损耗的方法。对电机正常运行和不同故障程度情况下的内部磁场进行模拟仿真,对故障情况进行分析,故障的严重程度会直接影响故障相的电磁场和磁通,使整个电机的磁场和磁通分布不再对称均匀。In normal operation of double - fed induction wind generator,stator winding inter - turn short circuit is one of the most common faults. Using the finite element method（ FEM）analysis of doubly - fed induction generator （DFIG）and with the aid of Maxwell 2D module in finite element analysis software ANSOFT,the paper establishes the simulation model for the DFIG. Through the analysis and simulation on the eddy current loss in the running process of the motor,the method to minimize the loss is obtained. The internal magnetic fields under normal operation and different malfunction degrees are simulated. The failure conditions are analyzed as well,which shows that severe breakdowns can directly affect the electromagnetic field and magnetic flux of the fault phase or fault phases,and make the magnetic field and flux distribution of the motor no longer symmetric.

关 键 词：双馈异步发电机 定子绕组故障 有限元分析 涡流损耗 

分 类 号：TM315[电气工程—电机]