Comparative Study of Speed Control of D.C. Motor Using PI, IP, and Fuzzy Controller

Abstract: The paper presents the simulation results obtained on a dc motor control system with a basic Fuzzy logic controller (FLC). From the last decade, the need for electric driven vehicle has risen rapidly due to the global warming problem. The traditional Proportional-Integral (P - I) controller, which has been widely used for the speed control of dc motor drives, has been compared with the relatively new Integral-Proportional (I-P) controller which first discussed in the year of 1978. P-I controller is used to control the speed of DC Motor. A model is developed and simulated using MATLAB/SIMULINK. However, the P-I controller has some disadvantages such as: the high starting overshoot, sensitivity to controller gains and sluggish response due to sudden disturbance. So, the relatively new Integral-Proportional (I-P) controller is proposed to overcome the disadvantages of the P-I controller. This paper presents some improvements in this important field of industries. The simulation and the experimental results indicate the superiority of (I-P ) controller over (P-I ) controller. The proposed controller results in reduced oscillations around the set point which are present in system with a basic fuzzy logic controller.

Keywords: Fuzzy logic controller (FLC) , Integral- Proportional (I-P) controller, Proportional-Integral (P-I) controller, Speed control, DC Motor drive.