火力发电厂机组APS监控关键技术研究

Key Technique for APS of Thermal Power Plant Control System

近年来,大型火电机组不断投产。这些火电机组,尤其是超临界、超超临界机组,运行参数高、工艺系统复杂,设备繁多,对自动化控制系统提出更高的要求。充分利用自动化控制系统是提高设备运行安全、降低能源消耗、提高经济效益是火力发电厂自动控制的必由之路。文章详细介绍了火电机组自动启/停控制系统、并提出了构建火力发电厂全过程、全工况、全自动控制系统的开关量自动控制策略。文章最后给出了火力发电厂全过程、全工况、全自动控制系统的开关量自动控制策略的实际应用案例,通过实际案例证明本文提出的自动策略的有效性。

Recently,many thermal power unit is put into service.Those thermal power units,especially supercritical unit,have high operating parameters,complex process system,various high equipment.Those characters put forward higher request to automatic control system.Making Full rational use of the automatic control system is a key method to operate equipment safely,reduce energy consumption,improve the economic benefit in thermal power plant.In this paper Automatic unit start-up and shut-down system（APS） of thermal power unit is introduced in detail,and put forward switch control strategy design method of whole process,full condition,automatic control system.Finally,the paper gives application case of whole process,full condition,automatic control system,switch control strategy design method of whole process,full condition,automatic control system.This switch control strategy design method is proved to be effective by application case.