中国电力2018，Vol.51Issue(5)：39-46,8.DOI:10.11930/j.issn.1004-9649.201708278
一起330 MW汽轮机组异常跳闸原因分析及ETS系统改进
Analysis on an Abnormal Trip of a 330-MW Turbine Unit and the Improvement of Its ETS System
周旭战 1杨亚飞 1张顺利 1董建朋1
作者信息
- 1. 中国大唐集团科学技术研究院有限公司华中分公司,河南郑州 450000
- 折叠
摘要
Abstract
Through the analysis on the abnormal trip process of a 330-MW turbine unit,the principle of the logic protection card (LPC) based emergency trip system (ETS) system is clarified,and the design defect of the inconsistency between the protection and the first-out is identified.In the absence of SOE records,through the first-out illusion,the data in trip process are analyzed.Combined with a series of EH oil system investigation and comparison test,the real reason of the ETS system action is explained reasonably.Meanwhile,detailed measures to improve the reliability of the ETS system are proposed from the aspects of design principles,protection failure prevention and important measurement improvement.关键词
汽轮机组/危急遮断系统/汽轮机逻辑保护卡/首出/EH油压/自动停机遮断/可靠性Key words
steam turbine/emergency trip system/logic protection card/first-out/EH oil pressure/automatic shift trip/reliability分类
能源科技引用本文复制引用
周旭战,杨亚飞,张顺利,董建朋..一起330 MW汽轮机组异常跳闸原因分析及ETS系统改进[J].中国电力,2018,51(5):39-46,8.
