汽轮发电机轴系负序激振的实用方法及其分析  

A Practical Method for Exciting Torsional Vibration on Turbine Shaft by Negative Sequence Current

作　　者：陆广香[1] 陆颂元 单渊达[1] 

机构地区：[1]东南大学电气工程系,江苏南京210096

出　　处：《中国电力》2000年第3期70-71,共2页Electric Power

摘　　要：我国部分５００ ｋＶ大容量、远距离输电线路拟采用串联电容补偿，因此，扭振研究工作，特别是轴系扭振频率实机测试工作在当前更具有实际意义。文中对配合 ２００ ＭＷ汽轮发电机组低压通流改造而进行的 ６台次成功的扭振试验工作进行总结，分析现场试验中若干关键技术问题，并提出一种实用、可靠、稳定的主励磁机激励方法。Part of 500 kV large capacity and long distance transmission lines in China are planned to install series capacitor compensation, therefore, the study of the measurement of torsional vibration on turbine shaft is significant. This paper summarizes 6 successful tests of turbine shaft torsional vibration in line with the retrofitting of low pressure pass of a 200 MW steam turbine, analyzes some critical problems arisen during the field tests and presents a practical, reliable and stable exciting method on the main excitor.

关 键 词：汽轮发电机 轴系扭振 负序激振法 故障 

分 类 号：TM311[电气工程—电机]