Design and Analysis of a Closed Loop Control System Using a Lead Compensator on a DC Motor Model
Keywords:
Lead Compensator, DC Motor Control, Closed-Loop System, Simulink SimulationAbstract
This study presents the design and performance analysis of a closed-loop control system for a DC motor using a lead compensator and a simplified second-order plant model. The objective is to enhance the transient and steady-state response of the motor by improving rise time, settling time, and stability margins. A mathematical model of the DC motor is developed and integrated with a lead compensator designed through classical control techniques. The complete system is implemented and simulated in MATLAB/Simulink to evaluate its dynamic behavior under a unit-step input. The simulation results demonstrate that the proposed lead compensator significantly improves system performance. The compensated system exhibits a fast rise time, smooth and monotonic convergence, negligible settling time, and zero steady-state error. No overshoot is observed, indicating excellent damping and stability characteristics. These findings confirm the effectiveness of lead compensation in shaping the dynamics of DC motor control systems. The study highlights the value of MATLAB/Simulink as a practical tool for validating theoretical designs and provides a methodological reference for future research in motor control and classical compensator design.
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