在核电站保护系统中应用基于数字化技术的安全级DCS已替代模拟技术成为主流,因为核电站的安全性要求很高,所以DCS技术的可靠性至关重要.为了确保应用DCS技术设计的可靠性,通过分析相关法规、标准的要求,总结了安全级DCS设计须进行的质量鉴定项及软件验证和确认过程,并结合当前主要应用的几个安全级DCS产品的技术特点,提出了安全级DCS设计开发中应考虑的控制器、智能I0模块、优选驱动模块以及通信等关键技术的要点.%The safety DCS based on digital technology has replaced analog technology to become mainstream applications for protection systems in the nuclear power plant. The reliability of DCS technology is very important because high safety requirements for nuclear power plants. In order to ensure the reliability of the DCS technology design, by analyzed the requirements of relevant codes and standards, summed up the qualification test items and software verification and validation process shall be performed for safety DCS design, and combining technical characteristics of the current major several safety DCS application product. The key technologies points of controller, intelligent 10 module, priority actuation module and communication etc. should be considered for the safety DCS design and development are proposed.
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