火电机组APS预选逻辑优化与应用

介绍了火电机组自启停控制系统的现状，总结出现阶段火电机组自启停控制系统应用受限的一些原因。在尽量不改变现场设备配置的情况下，从软件优化方面来提高APS系统的适用性。从提高APS控制系统适用性、投入效果角度出发，对互为备用设备的两选逻辑、三选逻辑进行分析，逐步进行优化，减少APS系统执行过程中的中断现象，提高机组自启停效率到95%。在多种类型的火电机组自启停控制系统的设计与实施方面具有很高的参考价值和意义。

Optimization and Application of APS Preselection Logic and HMI of Thermal Power Unit

After introducing the status of the APS used in thermal power unit, some reasons for the limited application of the APS in thermal power units at the present stage are summarized . From the perspective of improving the applicability of APS system and making optimization without changing the field equipment configuration as much as possible,as well as the investment effect of APS control system, the two preselected logic of mutual standby equipment and three preselected logic of mutual standby equipment are analyzed.Then gradually optimizes them, reduce the interruption phenomenon in the execution of APS system, and improve the efficiency of unit start and stop. It has a high reference value and significance in the design and implementation of the APS of various types of thermal power unit.