摘要
基于发电机转子绕组的多导体传输线(MTL)模型仿真得到了转子绕组的频域输入阻抗,分析了其频谱的特点,提出了转子绕组匝间短路的频域输入阻抗增益诊断方法。仿真和实测数据表明,该方法能够有效诊断转子绕组的匝间短路故障,并能提供故障点的位置信息。
Based on the multi-conductor transmission line(MTL)model of generator rotor winding,the input-impedance of frequency domain was obtained through simulation,then the characteristics of frequency spectrum was analyzed,and the gain diagnosing method based on input-impedance in frequency domain for inter-turn short circuit of rotor windings was proposed.The simulated and measured data showed that this method can effectively diagnose the inter-turn short-circuit fault of the rotor windings and provide the position information of the fault point.
作者
孙士涛
雷雨
张杰
梅军
朱守舵
SUN Shitao;LEI Yu;ZHANG Jie;MEI Jun;ZHU Shouduo(North China Electric Power Research Institute Co.,Ltd.,Beijing 100045,China;Beijing Huaketonghe Technology Co.,Ltd.,Beijing 100045,China)
出处
《大电机技术》
2020年第1期26-31,共6页
Large Electric Machine and Hydraulic Turbine
关键词
频域输入阻抗
增益诊断方法
转子匝间短路
同步发电机
input-impedance of frequency domain
gain diagnosing method
inter-turn short circuit of rotors
synchronous generator
