分散控制系统测点的分散性和保护动作的可靠性分析  

Analysis of Measuring Point Distribution and Protection Reliability of Distributed Control System

作　　者：宋维俏 

机构地区：[1]广州粤能电力科技开发有限公司,广东广州510600

出　　处：《广东电力》2009年第10期24-27,共4页Guangdong Electric Power

摘　　要：为了说明火力发电厂机组重要保护测点的分散性和热工保护动作可靠性的关系,对华润鲤鱼江电厂2号机组和湛江奥里油电厂2×600MW机组保护动作逻辑组态及其可靠性进行了分析,并指出了目前较普遍存在的逻辑设计问题。提出在实行机组保护动作逻辑组态设计时,不仅要考虑保护动作的可靠性,还要考虑各保护动作条件之间的相关性。To illustrate the relationship between distribution of important protection measuring points in units of thermal power plants and reliability of thermal protection,an analysis is made of the logic configuration and reliability of protection for Unit 2 in Huarun Liyujiang Power Plant and two 600 MW units in Zhanjiang Orimulsion Power Plant,and common problems existing in logical design are pointed out.It is proposed that both protection reliability and correlation between protection conditions should be considered in designing protection logic configuration of unit.

关 键 词：分散控制系统 分散性 可靠性 冗余 独立性 

分 类 号：TK323[动力工程及工程热物理—热能工程]