一种PID参数调整方法研究

Research on a Method of PID Parameter Adjustment

一种PID参数调整方法,以偏差e和偏差变化率ec作为输入,可满足不同时刻偏差e和偏差变化率ec对PID参数调整的要求。利用模糊理论在线对PID参数进行调整,构成参数调整PID控制器。与经典的PID控制方式相比较,该控制方式在动态性、稳态性及鲁棒性方面都有较大提高,在实际中将具有更广泛的应用。

A PID parameter adjustment method is introduced, which has inputs including deflection e and deviation change rate ec, and can meet requirements of deflection e and deviation change rate ec for PID parameter adjustment. On-line adjustment of PID parameter is carried on by using fuzzy theory to establish controller for PID parameter adjustment. The control rnethod is greatly improved in aspects such as dynamics, stabilization and robustness; and has wide application prospect.