Fawzan Salem and Mohamed I. Mosaad
This article presents a control method for DC motor drive using Fuzzy PD+I controller based Genetic Algorithm (GA). This control method is adequate whenever it is possible to apply a PID controller or this controller is already applied. The idea behind this controller is to adjust a conventional PID control parameters (Kp, Ki and Kd) using GA and then determine the equivalents of these gains in the fuzzy domain. The tuned controller parameters are used as initial values for parameters of the fuzzy PD+I controller. The proposed controller, fuzzy PD+I controller has the feature to be either linear or non-linear controller to obtain a better performance. Testing the proposed controller for the DC motor drive to control the speed of the motor over a wide range of the operating speed is applied. Moreover, the proposed fuzzy PD+I controller succeeds at improving the system performance even with changing the system parameters.