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Title: Direct torque and flux control of switched reluctance motor with enhanced torque per ampere ratio and torque ripple reduction
Authors: Krishna, Reddy, P.
Ronanki, D.
Parthiban, P.
Issue Date: 2019
Citation: Electronics Letters, 2019, Vol.55, 8, pp.477-478
Abstract: A smooth torque control of switched reluctance motor (SRM) is essential to avoid speed fluctuations causing stability problems in vehicular applications. This can be accomplished by an appropriate motor design and/or use of direct control of torque in SRM. It is reported that high RMS current is required to minimise the torque ripple in the conventional direct torque and flux control (DTFC), thereby reducing the torque per ampere ratio. To overcome this issue, a new DTFC technique with improved torque per ampere ratio while minimising torque ripple in an SRM traction drive is presented. Results demonstrated that the proposed DTFC technique reduces torque ripple with enhanced torque per ampere. Finally, the performance of the proposed scheme is compared with conventional DTFC of a four-phase (8/6) SRM to show the improvement in the traction drive. The Institution of Engineering and Technology 2019
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