Study of performance the 3-phase induction motor that drives by using scalar and vector control with variable speed loading

Omran Alabedalkhamis (AR-GE Center)
Baran Karahan (AR-GE Center)
İbrahim İdiz (AR-GE Center)
Hüseyin Alptekin (AR-GE Center)
Enver Ediz Erol (AR-GE Center)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 41, No 3: March 2026

Induction motor performance and efficiency greatly depend on the applied control technique, particularly in variable- and fixed-speed industrial applications. This paper aims to comparatively assess scalar control and vector control strategies for three-phase squirrel-cage induction motors. Using a simulation-based approach in MATLAB/Simulink, scalar control with sinusoidal pulse width modulation (SPWM) and vector control with space vector modulation (SVM) are built and analyzed under constant, variable, and bidirectional speed loading situations characteristic of a drive system. The results demonstrate that vector control provides greater speed regulation (about 93% compared to scalar control), reduced torque ripple (about 97% compared to scalar control), lower current stress (about 94% compared to scalar control), and improved dynamic responsiveness compared to scalar control, especially during transient operation. The paper is limited to numerical simulations. This paper’s biggest contribution is a clear, practical comparison which provides performance- and cost-oriented guidelines for selecting appropriate induction motor control strategies in severel applications.