摘要
本文通过分析汽轮发电机励磁绕组发生严重匝间短路时不平衡电磁力的特性,确定了该运行工况下转子振动的特征,分析励磁绕组严重匝间短路与其他原因导致转子振动特征的差异,提出一种基于转子不平衡振动特性的励磁绕组严重匝间短路的检测方法。最后以某300 MW汽轮发电机组励磁绕组严重匝间短路为例,验证了检测方法的有效性。
In the paper, the characteristic of unbalance magnetic pull produced by turbine generator field winding serious inter-turn short circuit(FWSISC) is analyzed, then rotor vibration feature on the condition of FWSISC is studied, and the difference of rotor vibration feature caused by FWSISC and other reasons is also analyzed. A detection method of FWSISC based on the rotor vibration characteristic is proposed. Finally, the validity of detection method is verified by an example of a certain 300 MW turbine generator FWSISC.
作者
王晓林
黄海舟
张侃君
阮羚
张勇
WANG Xiaolin;HUANG Haizhou;ZHANG Kanjun;RUAN lin;ZHANG Yong(Hudian Hubei Power Generation Co.,Ltd.,Wuhan 430062,China;Hudian Electric Power Research Institute Co.,Ltd.,Hangzhou 310030,China;State Grid Hubei Electric Power Research Institute,Wuhan 430077,China;National Specialized Laboratory of New-type Electrical Machinery,Huazhong University of Science&Technology,Wuhan 430074,China)
出处
《湖南电力》
2019年第6期29-33,41,共6页
Hunan Electric Power
关键词
汽轮发电机
励磁绕组
匝间短路
转子振动
turbine generator
field winding
inter-turn short circuit
rotor vibration
