Performance Analysis of Outer Rotor Wound Field Flux Switching Machine for Direct Drive Application
Keywords:
Deterministic optimization, flux switching machine, HEV’s, outer rotor, MECAbstract
One of the premium in-wheel applications is direct drive, evolving enormously for HEV’s. An alternative and lot of research especially on the outer rotor field excitation flux switching machine is required to overcome the problems like demagnetization and high cost of rare earth magnetic material used in interior permanent magnet synchronous machine (IPMSM). Salient rotor pole and non-overlapping winding embedded in electrical machine design possess some pertinent features such as; reduce copper losses, low-cost, and usage in high speed applications. Therefore, this paper emphasizes on the design of three-phase outer rotor wound field FSM employing optimization, performance analysis and MEC models of proposed 12-slot/13-pole FSM corresponding to different rotor positions are combined as GRN and are solved utilizing incidence matrix methodology using MATLAB. Moreover, FSM flux behavior, no-load, and load analysis were examined using JMAG software and based on FEA. Results obtained from GRN methodology and corresponding FEA results close resemblance with and errors less than ~1.2%, hence validating accuracy of GRN methodology. The proposed design for hybrid electric vehicle torque characteristic is compared with existing IPMSM and 6-slot/7-pole non-overlapping stator wound flux switching machine (NSWFS).
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References
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