同步电机定子绕组内部故障瞬态分析  

Transient Analysis of Stator Winding Faults for Synchronous Machine

作　　者：魏书荣[1] 符杨[1] 马宏忠[2] 

机构地区：[1]上海电力学院电力与自动化工程学院,上海200090 [2]河海大学电气工程学院,南京210098

出　　处：《电力系统及其自动化学报》2010年第5期80-85,共6页Proceedings of the CSU-EPSA

基　　金：上海市教育委员会重点学科建设资助项目(J51301);上海市重大科技攻关计划项目(08DZ1200604)

摘　　要：同步电机发生绕组故障后,电机的很多参量均要发生变化,参照同步电机自同期并列方式,采用多回路理论从同步发电机刚开始起动进行研究。在多回路模型中,均充分考虑了谐波的影响,并将转子的运动方程引入到模型中。根据多回路的仿真结果,研究了发电机在不同短路匝比、不同故障位置下各电流分量的变化规律,可以解决电机故障诊断中故障样本较难获取的瓶颈问题,为电机的故障诊断打下基础。The winding fault in synchronous machine can change many parameters of the machine.Based on the self-synchronizer parallel mode and the multi-loop theory,this paper investigated start-up process of the synchronous machine.By fully considering the impact of harmonic,the motion equation was introduced into the multi-loop model.Based on the simulation results,the fault rules of stator current,torque under different fault location,different short circuit turn ratio were systematically analyzed.The fault rules can solve the bottleneck problem which is difficult to obtain fault samples in the fault diagnosis,and it lay the foundation for the synchronous machine fault diagnosis.

关 键 词：起动过程 定子绕组 多回路理论 转子运动方程 内部故障 瞬态分析 

分 类 号：TM307.1[电气工程—电机]