Control Techniques of the Modified Stator and Rotor Pole Shape in a 6/4 Switched Reluctance Motor: Effects on Torque Ripple Minimization

Abstract

A switched reluctance motor (SRM) provides the advantages of simple and robust motor structure. But in switched reluctance motors (SRMs), as the result of the double ridged structure of motor, the torque vibrations and acoustic noise are relatively higher as against the sinusoidal machines. This study intends to minimize the torque ripple of a SRM. In machine’s design, new control approaches were employed by modifying the stator and rotor pole shapes in order to minimize the torque ripple in SRM. Moreover, by observing the performance of 6/4 SRM under steady-state conditions and at constant dwell angles for fan load, torque ripple (TR) analyses were performed. The driver was simulated for current control (CC), and control of sum of squared phase currents (SPC). Fuzzy Logic Controller (FLC) was also applied on speed loop in order to minimize torque ripple, and to improve the effective torque. In MATLAB/SIMULINK environment, the results are being discussed in detail. The FLC technique provided successful results in improving the effective torque ripple of SRM. The results of simulation were verified by the experimental results.

Keywords:

• switched reluctance motor
• torque ripple reduction
• fuzzy logic controller

ACKNOWLEDGMENT

The author would like to thank Prof. Dr. Huseyin Calik from the Department of Elektrik Electronic Engineering of the University of Giresun, for his tremendous valuable contribution.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Onur Akar

Onur Akar was born in 1981 in Giresun. He received his undergraduate, graduate and doctorate degrees from Marmara University in 2005, 2011 and 2020, respectively. He worked as a lecturer at Istanbul Gedik University between 2010-2020. He served as the Head of Electricity Program at Istanbul Gedik University between 2012-2015. He served as the Head of the Department of Electricity and Energy between 2021-2022 as an assistant professor in the Department of Electricity and Energy of the same university. He is still working as an Assistant Professor Marmara University, Vocational School of Technical Sciences. His research interests include Control Systems, Renewable Energy Systems, Power Systems and Lighting Systems.