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水轮发电机组的振动问题,无论对设计制造部门或运行部门都是一项重大的研究课题。尤其是在平时运行中,对机组振动进行监视,及时发现异常振动状态,防止发生事故,是一项十分重要的工作。然而,由于水轮发电机组振动原因比较复杂,有水力、机械、电气等方面的原因,所以发生振动时,需要进行充分的调查,采取适当的对策。本文就水轮机和发电机产生振动的原因和对策以及进行调查的方法作一介绍。
The vibration problem of hydro-generator sets is a major research topic both in design and manufacturing department and in operation department. Especially during normal operation, it is a very important task to monitor the unit vibration, detect the abnormal vibration in time, and prevent accidents. However, due to the complex causes of vibration of hydroelectric generating sets, there are hydraulic, mechanical, electrical and other reasons, so the occurrence of vibration, the need for adequate investigation, to take appropriate measures. This paper introduces the causes and countermeasures of vibration of hydraulic turbines and generators as well as the methods of investigation.