摘要
针对汽轮发电机组振动常规报警方法的不足,提出了应用性较好的报警方法,即短周期峰谷差报警法、长周期均值变化量报警法、基于3σ准则的动态阈值报警法,并说明了3种改进方法的要点和适用条件。结合现场机组振动故障的报警实例,验证了所提报警方法的有效性和实用性,为机组振动报警提供了参考。
In order to deal with the deficiency of conventional vibration alann method of steam turbine generator unit,more applicable alarm methods are proposed,that is,short period peak-valley difference alarm method,long period mean value change alarm method and dynamic threshold alarm method based on 3σcriterion.The key points and applicable conditions of the three improved methods are explained.The effectiveness and practicability of the alarm methods are verified by an example of the vibration fault alarm of the unit on site,which provides reference for the vibration alarm of the units.
作者
李晓波
俎海东
高飞
LI Xiaobo;ZU Haidong;GAO Fei(Inner Mongolia Electric Power Research Institute,Hohhot,Inner Mongolia 010020,China;Inner Mongolia Jingneng Kangbashi Thermal Power Co.,Ltd.,Erdos,Inner Mongolia 017000,China)
出处
《山西电力》
2023年第2期69-72,共4页
Shanxi Electric Power
关键词
汽轮发电机组
振动报警方法
短周期峰谷差法
长周期均值增量法
3σ准则
steam turbine generator unit
vibration alarm method
short period peak-valley difference method
long period mean increment method
3σcriterion
