参数自整定的模糊PID控制器及其改进

Research and Im Improvement of Parameters Self-Tuningprovement Fuzzy PID Controller

PID控制是工程上最为简单实用的一种控制方式,但PID参数整定难度较大,过程繁琐,难以找到最佳参数.模糊控制是一种利用人类专家控制经验的智能控制,模糊PID控制相对于常规的PID控制,具有参数整定方便、鲁棒性好、控制性能高的优势,但控制结构和算法较为复杂.综合PID控制和模糊PID控制的特点,设计了一种改进的混合结构的模糊PID控制器,并以实例仿真说明该控制器的有效性.

PID control is the simplest and most useful control mode in engineering,but the PID parameters adjustment is difficult and tedious,it is hard to find out the best parameters. Fuzzy control is an intelligent control,making use of expert control experience,which has a series of advantages,such as parameters tune convenience,the good robustness and control performance,but the arithmetic and control structure of it is more complex. Considering the characteristics of composite PID control and fuzzy PID control,we designed an improved mixed fuzzy PID controller structure and described the simulation of the effectiveness of the controller.