Speed Control Based PID Configuration of a DC Motor for An Unmanned Agricultural Vehicle

DC motors are used in many areas with their high starting torques and speed regulation features. In particular, the operation of DC motors must control their speed accurately in order to obtain the desired efficiency. Traditional PID control algorithm is preferred for its simplicity and usability in most industrial applications. This article describes the design and implementation of a PID control strategy using a simulation software to control the speed of a DC motor whose parameters are unknown. The mathematical model of the control system is obtained through a system identification by applying an input signal. Using obtained the mathematical model and Bode diagram techniques, a single input / single output configurator was designed. The PID control algorithm parameters P, I and D values are obtained by auto tuning methods. Here, an online identification system is used to set new control parameters. This study, PID controller is implemented using a simulation software and microcontroller integrated control board. The accuracy of the work is verified by the results of the experiments made with motor parameters.