Designing and analyzing voltage regulators for single-phase AC motors using inverter technology to improve drive system performance in industrial applications

Abstract

This study develops and analyzes a single-phase AC voltage regulating system designed using TIC126 SCR components, diodes, IC Regulators, and LM324N Op-Amps, as well as other electronic components. The main objective of this study is to improve the stability of the voltage applied to single-phase AC motors in industrial applications. This system works by adjusting the trigger point on the SCR, which in turn produces voltage fluctuations according to the setting of the trigger angle (firing angle). The analysis was carried out by utilizing PSIM simulation software to simulate the resulting voltage waveform and compare the numerical simulation results with the analytical estimation. The experimental results showed that the contrast between the numerically calculated voltage waves, the wave reconstruction results, and the analytical estimation did not show a significant difference. In this experiment, the trigger angle settings used were 45°, 60°, 90°, and 135°, with a resistive load of 5 W 100Ω and a low AC source voltage of 12.8 V at a frequency of 50 Hz. This study shows that the SCR-based voltage regulating system is able to maintain the stability of AC motor voltage and reduce fluctuations that can affect motor performance in industrial applications. The results of this research contribute to the development of a single-phase AC motor control system that is more efficient and reliable in various operational conditions.