基于磁场变化的双馈异步风力发电机定子绕组匝间短路故障仿真分析  

Simulation Analysis of DFIG Stator Winding Inter-Turn Short Circuit Fault Based on Changes of the Magnetic Field

作　　者：张志新[1] 马宏忠[1] 钱雅云[1] 程俊[1] 

机构地区：[1]河海大学能源与电气学院,南京210098

出　　处：《电网与清洁能源》2012年第9期68-72,共5页Power System and Clean Energy

基　　金：教育部博士点基金(20090944110011);国家自然科学基金(51177039)~~

摘　　要：基于电机定子绕组发生匝间短路故障时阻抗参数的变化,根据匝间短路故障程度与定子阻抗参数之间的关系,基于有限元方法,提出了一种电机定子绕组匝间短路故障建模方法,该模型可以用于分析电机匝间短路故障研究。运用有限元分析软件对电机在正常运行和不同程度故障情况下的内部磁场进行了模拟,验证了运用有限元法进行电机内部故障仿真分析的可行性。Based on changes of the impedance parameters in conditions of an inter-turn short circuit,and the relations between the inter-turn short circuit fault and stator impedance parameters,this paper proposes one method for building the model of the generator inter-turn short circuit fault which can be used to analyze the short circuit faults.The finite element method with the analysis software is used to simulate the generator's internal magnetic field both in the normal operation and the breakdown situations.The result confirms the feasibility of using the finite element method in the simulation analysis of the generator's interior breakdown.

关 键 词：双馈异步发电机 故障诊断 定子绕组匝间短路 有限元 ANSOFT 

分 类 号：TM315[电气工程—电机]