为减少因逻辑设计、保护信号取信方式、安装调试和检修维护等原因引起的热控保护系统误动停机次数，在总结热控系统故障原因、分析处理经验与教训的基础上，参照《火电厂热控系统可靠性配置与事故预控》和有关规程要求，展开热控系统隐患排查，进行了可靠性综合治理与预控措施专题研究，从防雷与抗干扰、汽轮机监视系统、逻辑可靠性优化、接线与管路、技术与监督管理角度提出了针对性的预控措施。

In order to reduce the fault tripping times of thermal power control system caused by logic design, access mode of protection signal, installation, commissioning, repair, maintenance, and so on, this paper investigated the hidden troubleshooting for the thermal control system and the prevention measures for the system reliability, based on the fault’s cause analysis, treatment experience and lessons for the thermal power control system, and the specification requirements of ‘the Reliability Deployment and Accident Prevention of Thermal Power Control System’. The prevention measures were suggested form the view of lightning protection, anti-interference, turbine supervisory instrumentation, logic reliability optimization, wiring and piping, technology and supervision management.