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A new toroidally wound switched reluctance machine (TSRM) with a single continuous multitapped winding is presented. This machine may be driven by a 6-switch asymmetric converter that supplies unipolar coil currents or by a 12-switch voltage source converter that supplies bipolar coil currents. The TSRM magnetic design and power electronic control is described, and its performance is compared with...
In this paper, a new multi-purpose switched reluctance machine drive with charging capabilities is introduced. This topology satisfies propulsion requirements and allows single phase as well as three-phase AC charging. In charging mode, the machine windings are used as inductors and the zero torque condition is maintained by canceling out all tangential forces. Every component of the SRM drive is...
Two new topologies of three-phase segmented rotor switched reluctance machine (SRM) that enables the use of standard voltage source inverters (VSIs) for its operation are presented. The topologies has shorter end-turn length, axial length compared to SRM topologies that use three-phase inverters; compared to the conventional SRM (CSRM), these new topologies has the advantage of shorter flux paths...
The present paper deals with the comparative design and analysis of 3 Switched Reluctance Machine (SRM) topologies for electric vehicle propulsion. A preliminary design of the machine will be carried out, giving the initial geometric and electric (winding) data. Different numbers of phases and different combinations of stator and rotor pole numbers will be considered, keeping the same main dimensions...
This paper addresses the impact of turn-on and conduction angles on the torque production for a novel disk-type rotor SRM. This topology utilizes a conventional 3-phase winding strategy for the 12/8 SRM; however, with a substantially different rotor structure that seeks to maximize the saliency ratio between the stator and rotor poles. Prior to addressing the turn-on, or switching on, and conduction...
This paper overviews various electrical machine technologies, including brushless permanent magnet, induction, switched reluctance, and brushless reluctance machines, with particular emphasis on the concept of hybrid electrical machine topologies, and compares their relative merits, in terms of torque and power density, operating speed range, over load capability, and efficiency, for application in...
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