本文介绍了S7-300的基本功能和模糊控制的基本原理,详细阐述了如何利用step7编写用户自行开发的模糊PID控制算法和如何利用组态王6.5对供水管网水压进行监控。通过组态王和S7-300之间的通信,采用模糊PID控制算法实时调节P、I、D参数,实现了对供水管网水压的控制。关键字:组态王6.5,水压控制,模糊PID 控制算法,S7-300PLC,多点接口网络MPIResearch of Fuzzy PID Control for Hydraulic Pressure Based on Kingview and PLC WEI Rui-Lu LUO Qi-Ping (Department of Electrical Engineering,Guangxi Technological College of Machinery and Electricity,Nanning,530007) Abstract: The basic functions of S7-300 and the basic principle of fuzzy control are introduced,how to use the step 7 to programme the user-developed fuzzy control algorithm and how to use Kingview 6.5 to monitor the hydraulic pressure of water supply piping are described. Through the communication between Kingview 6.5 and S7-300,by adjusting the P,I,D parameters real-time using the fuzzy PID control algorithm , the control of hydraulic pressure is realized.Keywords: kingview 6.5, hydraulic pressure control,fuzzy PID control algorithm,S7-300PLC, multiple point interface network
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