Dynamic Modelling Of Mosfet Base Inverse Parallel Controller For Improved Performance

ABSTRACT

The development of technologies affects the demands of industries at the present time. Thus, automatic control has played a vital role in the advance of engineering and science. In today’s industries, control of DC motors is a common practice. Therefore, implementation of DC motor controller is required. There are many types of controller that can be used to implement the elegant and effective output. One of them is by using a PID controller. PID stands for Proportional and Integral and Differential Controllers which are designed to eliminate the need for continuous operator attention thus provide automatic control to the system. This project is focused on implementing PI and PID controllers to control speed of a dc motor. The DC motor was modelled mathematically and simulated using MATLAB/SIMULINK. The overall project is divided into two parts. The first part is concern with the simulation of the DC Motor using MATLAB SIMULINK where the second part dealt with the simulation of the DC motor and PI,PID controllers. From the results obtained, it was shown that the due to inrush current at start-up, the armature current of the DC motor has high transient. From the controlled motor, it was observed that the PID showed a reduced overshoot and increased settling time.