PERFORMANCE EVALUATION OF SUPER TWISTING SLIDING MODE CONTROL IN SWITCHED RELUCTANCE MOTOR DRIVE

Yuser Ibrahim; Abdal-Razak Shehab  Hadi

doi:10.30572/2018/KJE/170231

Authors

Yuser Ibrahim Student in the Department of Electrical Engineering, University of Kufa, Najaf, Iraq
Abdal-Razak Shehab Hadi Professor in the department of Electrical Engineering, University of Kufa, Najaf, Iraq

DOI:

https://doi.org/10.30572/2018/KJE/170231

Keywords:

Switched reluctance motor drive, 6/4 SRM, Speed control, Sliding mode control, super twisting, PID, cascaded PID, torque ripple

Abstract

Given the importance of speed control in switched-reluctance motor (SRM) drives for industrial applications, this study proposes a super-twisting sliding-mode controller (STSMC) implemented in MATLAB/Simulink to control the speed of a 6/4 SRM. Another control strategy based on speed control is implemented: conventional sliding-mode control, an optimized cascaded PID, and a traditional PID. Simulation results indicate that STSMC outperforms all other controllers, reducing speed error by 82.1% (at full load) compared to SMc and 98.2% relative to cascaded PID and PID. Regarding settling time, STSMC responds 23.1% faster than SMC (at 50 nm load) and 95% faster than Cascaded PID (at no load). Torque ripple is minimized by 47.7% and 86.7% relative to SMC and PID-based controllers, respectively. Moreover, STSMC significantly mitigates chattering in SMC, resulting in smoother control signals. These results confirm STSMC as an accurate, robust, and efficient solution for high-performance applications in SRM drives.

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