Research of Fuzzy-PID Controller Based on Nonlinear Optimization Method

Abstract

The time delay often exists in the industrial process. Its control effect by conventional PID controller needs to be improved. In this paper, a method of parameter setting based on nonlinear optimization is proposed. Combined with Fuzzy-PID, the robustness of the control system is improved. Compared with traditional PID, the proposed controller shows better control effect with the variation of controlled object.