基于模糊规则参数自整定PID控制器的仿真研究

摘要

针对常规PID控制器参数整定不易、适应性差、控制精度不理想的现状,提出了在动态过程中参数自整定的模糊PID控制系统.利用模糊理论在线对PID参数进行调整,构成参数自整定PID控制器.通过MATLAB/SIMULINK仿真,仿真结果表明,与经典的PID控制方式相比较,该控制方式在快速性、稳态性及准确性方面都有较大提高.%Aimed at the actuality problem of routine PID controller such as poor adaptability and low controlling precision. the adjustment of PID parameters in a dynamic process was designed to improve the adaptability and the control accuracy. The paper focused on the design of parameter auto-tuning PID controller based on fuzzy rules. on-line adjustment of PID parameter is carried on by using fuzzy theory to establish controller for PID parameter adjustment. The simulation is made by MATLAB/SIMULINK, the simulation results show that the control method is greatly improved in the aspects such as rapidity, stabilization and accuracy compared with classical PID controller.