基于PLC的模糊PID水电厂蒸发冷却空调控制系统  

Fuzzy PID Control System for Evaporation Cooling Air-conditioner in Hydropower Plants based on PLC

作　　者：许玉忠 

机构地区：[1]乌鲁瓦提水利枢纽管理局,新疆和田848000

出　　处：《水电与新能源》2016年第6期15-18,共4页Hydropower and New Energy

摘　　要：根据西北地区特别是新疆应用较为广泛的蒸发冷却空调系统特点,介绍其原理和机构及在水力发电厂中的实际应用,并针对AI温控器存在的不足,采用模糊PID设计,通过特别的寻址方式,使PLC能够简便易行地实现模糊PID计算,进而实现基于PLC的水电厂蒸发冷却空调控制。经实测该系统不仅实现了厂区温度的精准控制,而且还能远程监控,又能降低能耗。The evaporation cooling air-conditioner is widely adopted in northwest area of China , especially in Xinjiang Autonomous Region .Its working principles , structures and practical application in hydropower plants are introduced . Considering the shortcomings of the AI temperature controller , a fuzzy PID control system based on PLC is developed , in which the fuzzy PID calculation can be easily accomplished by PLC with a special addressing mode .Field tests show that the proposed system is able to control the plant temperature accurately with remote monitoring ability and lower power consumption .

关 键 词：PLC 寻址方式 模糊PID 蒸发冷却空调 控制系统 流程图 

分 类 号：TP273.3[自动化与计算机技术—检测技术与自动化装置]