关键词:非线性系统; 广义预测控制; 模糊自适应控制; 稳定性分析
Fuzzy direct generalized predictive control based on tracking error adjustment
LI Gui-qiu1, CHEN Zhi-wang2
(1. Changzhou Institute of Mechtronic Technology, Changzhou Jiangsu 213164, China; 2. Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Yanshan University, Qinhuangdao Hebei 066004, China)
Abstract:This paper presented a kind of fuzzy direct generalized predictive control(FDGPC) to overcome the shortcoming of large computation load of original GPC. In the method,replaced a class of nonlinear system by a time varying linear system based on the mean value theorem. Then used a fuzzy logic system to design predictive controller directly.Finally adjusted the controller parameter θu adaptively based on tracking error. It is proved that the proposed method can make the tracking error converge to a small neighborhood of the origin. Simulation results demonstrate the effectiveness of the method. ......