International Journal of Engineering and Technology

this paper presents a comparative study between Proportional-Integral-Differential (PID) tuning methods which they are commonly used in industrial application. Modified Ziegler-Nichols, Chien-Hrones-Reswick (CHR), Tyreus–Luyben, Damped Oscillation tuning methods have been chosen for this purpose. The parameters of these methods have been demonstrated. A permanent magnet direct current (PMDC) motor has been introduced as speed control target. The parameters of the PMDC have been calculated practically. Atmega328 microcontroller and IBT-2 driver that control the speed of the selected PMDC using pulse width modulation (PWM) have been adopted as a practical control circuit. For simulation the mathematical models of all PID tuning method, Matlab Simulink is used. All the results show that the Modified Ziegler-Nichols is the most suitable tuning method for targeted system, since this tuning method provides more dynamic response to load disturbance with acceptable overshoot.