A New Torque Control Approach for Torque Ripple Minimisation in Switched Reluctance Drives

Ali Abdel-Aziz, Mohamed Elgenedy () and Barry Williams
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Ali Abdel-Aziz: Electronic and Electrical Engineering Department, Strathclyde University, 16 Richmond St, Glasgow G1 1XQ, UK
Mohamed Elgenedy: School of Computing, Engineering and the Built Environment (SCEBE), Glasgow Caledonian University, 70 Cowcaddens Rd, Glasgow G4 0BA, UK
Barry Williams: Electronic and Electrical Engineering Department, Strathclyde University, 16 Richmond St, Glasgow G1 1XQ, UK

Energies, 2024, vol. 17, issue 13, 1-25

Abstract: The switched reluctance motor (SRM) has many merits, such as robustness, a simple construction, low cost, and no permanent magnets. However, its deployment in servo applications is restrained due to acoustic noise and torque ripple (TR). This paper presents a new torque control approach for TR reduction in switched reluctance drives. The approach is based on the maximum utilisation of the available dc-link voltage, hence extending the zero torque-ripple speed range. The approach is suitable for an SRM with any number of phases and stator/rotor poles. Soft switching control is deployed, which reduces switching losses. At any instant (regardless of the number of phases being conducted simultaneously), only one phase current is controlled. The well-established torque-sharing function concept is adapted and generalised to cater for more than two phases conducting simultaneously. MATLAB/Simulink confirmation simulations are based on the widely studied four-phase 8/6, 4 kW, 1500 rpm SRM.

Keywords: current profiling; electric vehicles; switched reluctance motor; torque ripple; torque sharing (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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