基于T-S模型的自校正模糊控制器及在串励电机调速中的应用  

A self - tuning fuzzy controller based on T - S model and its application on speed adjustment of series motors

作　　者：王舰[1] 

机构地区：[1]哈尔滨工业大学控制科学与工程系,黑龙江哈尔滨150001

出　　处：《电机与控制学报》2005年第4期316-320,325,共6页Electric Machines and Control

摘　　要：针对受控对象的非线性和参数不确定及时变特性,提出了一种基于T-S模型的自校正模糊控制器,采用梯度法对该模糊控制器参数进行在线调整和修正,利用李雅普诺夫稳定性理论对该控制器的稳定性进行了分析,得到了保证控制系统稳定的充分条件,并进行了仿真研究。仿真和实验结果表明,将其应用于单相串励电机的速度调节算法中,其输出性能指标优于传统的PID控制器,该自校正模糊控制器对参数不确定或时变及非线性受控对象均具有良好的动态响应特性和鲁棒性。A new kind of self - tuning fuzzy controller based on T - S model is presented in this paper for the controlled objects with nonlinear characters, uncertainty and time - varying parameters, and parameters of the fuzzy controller can be modified and adjusted on line by gradient method. We analyze the stability of the controller by using the Lyapunov stability theory, and deduce the sufficient condition to guarantee stability of the controlled system. In this study, we also investigate the performance of the serf -tuning fuzzy controller by simulation, and apply it on speed adjustment algorithms of single - phase series motors. Synthesis performance of the controller is superior to that of traditional PID controller. Simulation and experimental results show that the serf - tuning fuzzy controller provides high performance dynamic characteristics and robustness to the controlled objects with nonlinear characters, uncertain and time - varying parameters.

关 键 词：模糊控制器 T—S模糊控制器 自校正 单相串励电机 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]