Digitalizing the Speed Control Circuit of Three-Phase Induction Motor Based on Pulse-Width Modulation using Proteus Software

The practice course about electric motor controlling is essential in establishing undergraduate students’ skills in many electronics and electrical engineering majors. However, due to the current COVID-19 situation, teaching this practical subject has become unlearnable in the laboratory room. Therefore, the urgent requirement is to find a solution to virtualize many electrical-motor control lessons for online learning during the distant social period. In this paper, we propose a potential solution to online practical electrical motor control coursework based on Proteus software. Unlike the common Matlab Simulink approach, the Proteus has the advantage of digitizing both the Arduino device and the electric circuits. We demonstrate the usefulness of Proteus 8.2 software by implementing a circuit to control a 3-phase asynchronous motor using the pulse width control method, named sine PWM. Through the learning on Proteus software, students not only review the theoretical knowledge of electrical motors but also learn how to apply the theory through simulating virtualized Arduino devices and building a control circuit with the control block to control the motor in real-time. Furthermore, Proteus also supports printing out the control circuit board for the user. Proteus is, therefore, a suitable solution for online teaching of practice subjects for related majors.