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Analysis and suggestion on safety reliability of DCS
Author(s): 
Pages: 75-78
Year: Issue:  5
Journal: ELECTRIC POWER

Keyword:  火电厂分散控制系统安全可靠性故障分析;
Abstract: 随着分散控制系统(DCS)在火电厂的大规模应用,热控自动化系统已由原来的配角转变为决定机组安全经济运行的主导因素,其安全问题也变得越来越突出.根据安徽电网火电厂近几年来DCS异常故障情况的统计,对照国家和电力行业规程、标准,对软硬件、事件顺序记录(SOE)、通信网络、供电电源、工程设计组态等方面发生的影响机组安全运行的故障现象和可能存在的隐患进行分析,并就进一步提高火电厂DCS安全可靠性问题,提出优化DCS设计和配置、完善应用技术和强化运行维护管理等建议.
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