Controlled Circuit for Three-Phase Characteristics Control of Shunt Direct Current Motor

Abstract

The precise control of electric motor speed is essential in modern industrial applications, where variable direct voltage is often required to achieve optimal performance. This research focuses on the design and implementation of an SCR (Silicon Controlled Rectifier)-based rectifier circuit, aimed at supplying the necessary variable direct voltage for a shunt direct current (DC) motor. The key advantage of the SCR-based rectifier is its ability to regulate the output voltage by adjusting the delay angle of the SCR. This adjustment allows for precise control over the voltage supplied to the motor, which directly influences its speed and torque characteristics. Through experimental testing, the effectiveness of the proposed circuit in controlling the motor's performance was verified. The results showed that the rectifier circuit could efficiently regulate both speed and torque, providing a stable and adjustable output for the shunt DC motor. This ability to fine-tune motor characteristics offers significant potential for improving the operational efficiency of industrial systems, particularly in applications where variable speed and load handling are crucial. By optimizing the motor's performance, the SCR-based rectifier circuit can contribute to energy savings, enhanced productivity, and reduced wear on motor components, which ultimately leads to lower maintenance costs and extended motor life. These findings underscore the practical advantages of using SCR-based rectifiers in industrial motor control systems, positioning this approach as a valuable solution for modern manufacturing and automation.