摘要
短路故障是一种较为严重的电机故障,研究电机在短路故障下运行特性对提高电机在特殊环境下的运行能力至关重要。本文提出了一种四相12/9极双电枢绕组分布电励磁双凸极电机,深入研究了其基本结构与工作原理。在此基础上通过有限元仿真研究电机在两种短路故障下的绕组电流、磁链和端电压等电磁特性,得出了短路电流产生的电枢反应对电机的影响规律,并对电机在不同励磁电流下的短路电流和功率特性进行了详细分析。最后研制了一台四相12/9极双电枢绕组分布电励磁双凸极电机的实验样机,进行了绕组短路故障实验研究,验证了理论分析的正确性。
Short circuit is a serious fault and it is essential to research the operation characteristics under short circuit fault for improving the performance under special circumstances.In this paper,presented a dual armature-winding doubly salient electro-magnetic machine with distributed field magnetomotive forces.The basic structure and operation principle were investigated.The electromagnetic performances under two short circuit faults,including winding current,flux linkage and terminal voltage,were investigated by finite element method.The influence of armature reaction caused by short-circuit current was analysed.Moreover,the relationship between the field current and short-circuit current and power characteristics were researched.Finally,the theoretical analysis was verified by the short-circuit experiment on a four-phase 12/9-pole dual armature-winding doubly salient electro-magnetic machine with distributed field magnetomotive forces prototype which was designed and manufactured.
作者
倪海涛
赵耀
滕登辉
陆佳煜
邓丽娜
NI Haitao;ZHAO Yao;TENG Denghui;LU Jiayu;DENG Lina(School of Electrical Engineering,Shanghai University of Electric Power,Shanghai 200090,China)
出处
《微电机》
2022年第3期26-33,共8页
Micromotors
基金
国家自然科学基金青年基金(51707114)
上海市科学技术委员会项目(18DZ1202302)。
关键词
电励磁双凸极电机
双电枢绕组
短路故障
电枢反应
doubly salient electro-magnetic machine
dual armature-winding
short-circuit fault
armature reaction
