Enhancing Three-Phase Induction Motor Performance with Soft Ramp Control

Asif Hussain; Raja Masood Larik; Muhammad Salman Saeed; Agha Yasir Ali; Usman Humayun; Muhammad Rashid; Zain-ul-Abiden Akhtar; Zeeshan Arfeen

Authors

Asif Hussain Department of Electrical Engineering, The Islamia University of Bahawalpur (IUB), 63100- Bahawalpur- Pakistan
Raja Masood Larik Department of Electrical Engineering, NED University of Engineering and Technology, (NEDUET), Karachi, Pakistan
Muhammad Salman Saeed Multan Electric Power Company (MEPCO), Multan, Pakistan
Agha Yasir Ali Department of Data Science and Computing, Sir Syed University of Engineering and Technology (SSUET), Karachi, Pakistan
Usman Humayun Department of Computer Engineering, Faculty of Engineering Bahauddin Zakariya University (BZU) Multan 60800, Pakistan
Muhammad Rashid Department of Electrical Engineering, The Islamia University of Bahawalpur (IUB), 63100- Bahawalpur- Pakistan
Zain-ul-Abiden Akhtar Department of Information and Communication Engineering, The Islamia University of Bahawalpur (IUB), Bahawalpur- Pakistan
Zeeshan Arfeen Department of Electrical Engineering, The Islamia University of Bahawalpur (IUB), 63100- Bahawalpur- Pakistan

Keywords:

Three-Phase Induction Motor, Soft Ramp Control, High Starting Current, Starters and Inrush Current

Abstract

Three-phase induction motors experience high inrush currents during start-up, exceeding their rated capacity and potentially damaging stator windings. This paper explores the implementation of soft ramp control to address this challenge. Soft starters progressively increase the voltage applied to the motor, mitigating the current surge and associated electromagnetic torque. This reduces stress on the motor shaft, and connected equipment even though preventing disruptions in the power supply network. The proposed technique aims to start the motor at a lower speed and gradually climb to its maximum rated speed. This paper employed a gentle ramp control strategy using TRIAC-based voltage regulation. This technique prevents abrupt surges that could harm the motor and related equipment. The study illustrates the soft start process for a three-phase induction motor using a prototype setup and a simulation model. The soft start technique dramatically lowers starting current, mechanical stress, and electromagnetic disturbances, improving motor health and performance, according to experimental data. This method is a cost-effective alternative for industrial applications since it not only increases motor longevity but also lowers the related power losses.

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