摘要
根据电厂系统的水位实验数据及其工作原理,建立了水位控制的数学模型,并针对该系统的大延迟和模型不确定性,将FUZZY—PID控制引入到电厂系统的水位控制中。理论分析和仿真结果表明,应用这种方法设计出的水位控制系统,在稳定时间和稳态精度方面均优于单一的PID控制和FUZZY控制。该研究具有一定的使用价值,为FUZZY—PID控制在电厂水位系统中的应用打下了理论基础。
A mathematical model is presented according to experimental data and the principle of operation of electric power plant water level control system .In order to overcome the large delay and the uncertainty of the system, a Fuzzy-PID controller with fuzzy switching based on fuzzy rules is applied to the water level control system .Theoretical analysis and the results of simulation show that this Fuzzy-PID control method has shorter stable time and smaller stable error compared with pure PID controler or fuzzy controler . Its conclusion is of some practical value, and gives the basis of Fuzzy-PID controll applying in the water level control system.
出处
《微计算机信息》
北大核心
2008年第22期63-64,130,共3页
Control & Automation
