Fuzzy自调整PID的Smith预估主汽温控制系统

Main Stream Temperature Control Systems Based on Fuzzy Self-tuning PID Smith Controllers

针对火电厂锅炉主汽温被控对象的大迟延、模型不确定性,设计了Fuzzy自调整PID参数的Smith预估主汽温控制系统。运用MATLAB对系统在多种工况下进行了仿真,结果表明所设计的控制系统在控制品质、鲁棒性方面明显优于常规的Smith预估控制系统。

In order to overcome the large delay and the uncertainty of the mainstream temperature object in fossilfired power station, a control system based on Fuzzy Selftuning PID Smith Controller is proposed. Through simulation in various situations using MATLAB, it shows that the control quality and robustness of this control system apparently are superior to general Smith prediction control system.