双速率采样MFA-PID串级控制在汽包水位系统中的仿真研究  

Computer Simulation of a Drum Water Level System Based on Double-speed Sampling MFA-PID Cascade Control

作　　者：李大中[1] 宁薇薇[1] 倪玮强[1] 

机构地区：[1]华北电力大学自动化系,河北保定071003

出　　处：《锅炉技术》2007年第5期19-21,35,共4页Boiler Technology

摘　　要：提出了一种基于双速率采样的无模型自适应控制方法,该方法与基本无模型控制以及PID控制方法相比,在对外部扰动控制的响应速度和抗干扰的能力方面都有明显地提高,并且具有较强的适应性和鲁棒性。以电站锅炉汽包水位为对象做了仿真验证,结果表明该方法计算量小,控制效果好。A model free adaptive control method based on double-speed sampling is presented in this paper. Compared with the basic model free adaptive control and PID control, this method has notable improvement in response speed for external disturbance and anti-interference ability. It has strong self-adaptive ability and robustness. The strategy is applied to the-control system for drum water level of coal-fired power plant. Simulation results show that, computing measure of this method is small and control effect is good.

关 键 词：双速率采样 无模型自适应控制 汽包水位 

分 类 号：TK223.1[动力工程及工程热物理—动力机械及工程]