摘要
本文研究了一类非线性系统的广义预测控制,将其等效为时变线性系统,然后在线辨识时变参数,进行广义预测控制。给出了两种辨识时变参数的方法,并以二容液位系统为模型,进行了仿真研究,结果表明,此方法计算量小,工作点变化时跟踪速度快,具有较好的控制效果。
A Generalized Predictive Control for a class of nonlinear system is studied in this paper. First the nonlinear system is substituted with a time varying linear system and then the time varying coefficients are identified on-line. Two identify methods are proposed and used to simulate the two-tank level system. The simulation results -demonstrate that lower calculation, fast tracking speed, and good control effect of the nonlinear system are obtained.
出处
《自动化博览》
2014年第8期94-97,共4页
Automation Panorama1
基金
【国家自然科学基金项目(61273188)】:多操作空间强非线性系统自适应模型辨识的子空间方法
关键词
非线性系统
广义预测控制
时变线性系统
Nonlinear system
Ggeneralized predictive control
Time varying linear system
