Design and implementation speed control system of DC Motor using Thyristor in MATLAB Simulink

Author(s)	Mr. Abhishek Somnath Kumbhar, Mr. Tanmay Tekchand Patle
Country	India
Abstract	This paper presents a simple and effective method for controlling the speed of a DC motor using a single-phase controlled rectifier (SCR bridge). The output voltage supplied to the motor is regulated by adjusting the firing angle of the SCRs, which directly changes the armature voltage and controls the motor speed. A triggering circuit generates accurate gate pulses, while a feedback mechanism measures the actual motor speed and corrects any error through a PI-based controller. This closed-loop approach ensures stable operation, smooth speed variation, and improved performance under different load conditions. The proposed system is low-cost, easy to implement, and suitable for industrial as well as educational applications.
Keywords	DC Motor, Speed Control, Thyristor, Firing Angle, MATLAB Simulink
Field	Engineering
Published In	Volume 6, Issue 6, November-December 2025
Published On	2025-11-27
DOI	https://doi.org/10.63363/aijfr.2025.v06i06.2174
Short DOI	https://doi.org/hbdsvm

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