Ardhito Primatama
Universitas Islam Negeri Maulana Malik Ibrahim Malang

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Design of Single-Phase Induction Motor Soft Starter with Closed Loop Method Using Arduino Microcontroller Ardhito Primatama; Lutfir Rahman Aliffianto; Ciptian Weried Priananda
International Journal of Electrical and Intelligent Engineering Vol 1, No 1 (2025)
Publisher : Department of Electrical Engineering Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/ijeie.v1i1.33950

Abstract

A closed‑loop soft‑starter for a 220 V/0.5 hp single‑phase induction motor driven by an Arduino micro‑controller and dual feedback (current + speed) is presented. Relative to direct‑on‑line (DOL) starting, the prototype halves the in‑rush current under no‑load conditions (6.62 A versus 3.30 A) and reduces it by 36 % when the motor drives a synchronous generator (8.28 A versus 5.33 A). Starting torque is maintained at ≥ 90 % of the DOL value in both scenarios, whereas transient time rises modestly from 0.77 s to 2.32 s (no‑load) and to 7.92 s under generator load. These findings demonstrate that the proposed soft‑starter mitigates voltage sag and mechanical stress without compromising torque, making it suitable for small‑enterprise applications where three‑phase supplies are unavailable.