汽轮发电机转子严重匝间短路不平衡振动特性分析及检测方法  

Analysis and Detection Method of Serious Inter-turn Short Circuit Unbalance Vibration Feature for Turbine Generator Rotor

作　　者：王晓林 黄海舟 张侃君 阮羚 张勇[4] 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)

机构地区：[1]华电湖北发电有限公司,湖北武汉430062 [2]华电电力科学研究院有限公司,浙江杭州310030 [3]国网湖北省电力有限公司电力科学研究院,湖北武汉430077 [4]华中科技大学新型电机国家重点专业实验室,湖北武汉430074

出　　处：《湖南电力》2019年第6期29-33,41,共6页Hunan Electric Power

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.

关 键 词：汽轮发电机 励磁绕组 匝间短路 转子振动 

分 类 号：TM311[电气工程—电机]