Notice of Violation of IEEE Publication Principles: Review paper on Torque Ripple Mitigation Techniques for PMBLDC Motor

Notice of Violation of IEEE Publication Principles

"Review Paper on Torque Ripple Mitigation Techniques for PMBLDC Motor"
by Hatel V. Patel and Dr. Hina Chadwani
in the Proceedings of the International Conference on Current Trends in Computer, Electrical, Electronics and Communications (ICCTCEEC), September 2017, pp.669-674

After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.

This paper copied a figure from the paper cited below. The figure was copied without attribution (including appropriate references to the original author(s) and/or paper title) and without permission.

"Minimization of Torque Ripples in BLDC Motors due to Phase Commutation - a Review"
by Wael A. Salah, Dahaman Ishak, Khaleel J. Hammadi
in PRZEGLAD ELEKTROTECHNICZNY (Electrical Review), January 2011, pp.183-188


This paper presents the review of various torque ripple reduction techniques, various reasons behind the production of torque ripple in a three phase star connected brushless DC motor with trapezoidal type back emf. Unlike the PMSM whichrequires sinusoidal excitation, the PMBLDC motor requires quasi square wave stator currents to produce constant torque. The torque ripple produced in the PMBLDC motor affects the drive performance where accuracy is of utmost importance. Here a comprehensive study of various methods which reduces the torque ripple in commutation as well as during conduction period is provided.