摘要
莫迪康PLC控制器在ETS系统中的运用较为普遍,且该型PLC控制系统运行稳定,可靠性较高,但是随着电力过程控制系统的发展和升级,原有的莫迪康PLC控制系统已出现了较多影响设备和系统安全运行的隐患点,例如:该套ETS系统跳闸硬回路存在失电保护拒动的风险;通讯网络未完全独立的冗余配置,不具备无扰切换功能等。这些较严重的设备缺陷,均已无法满足《防止电力生产事故的二十五项重点要求》中的相关规定。
The application ofModicon PLC controller in the ETS system is more common, and the type of PLC control system is stable, high reliability, but with the development and upgrade of the power process control system, the original Modicon PLC control system has more impact on the safe operation of the equipment and system, such as the risk of loss protection for the trip hard circuit of the ETS system, the communication network is not completely independent of redundant configuration, there is no switching function and so on. These serious equipment defects can not meet the relevant provisions of ＂the 25 Priority Requirements for Prevention of Electric Power Production Accidents＂.
出处
《中小企业管理与科技》
2018年第1期160-161,共2页
Management & Technology of SME
关键词
保护拒动
冗余
隐患
refusal-operation of protection
redundancy
hidden danger
