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The Effect of the Number of Parallel Winding Paths on the Fault Tolerance of a Switched Reluctance Motor

Author

Listed:
  • Mariusz Korkosz

    (Department of Electrodynamics and Electrical Machine Systems, Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, 35-959 Rzeszow, Poland)

  • Jan Prokop

    (Department of Electrodynamics and Electrical Machine Systems, Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, 35-959 Rzeszow, Poland)

  • Piotr Bogusz

    (Department of Electrodynamics and Electrical Machine Systems, Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, 35-959 Rzeszow, Poland)

Abstract

Achieving increased fault tolerance in an electric motor requires decisions to be made about the type and specifications of the motor machine and its appropriate design. Depending on the type of motor, there are generally three ways to achieve an increased resistance of the drive system to tolerate resulting faults. The simplest way is to select the right motor and design it appropriately. Switched reluctance motors (SRMs) have a high tolerance for internal faults (in the motor windings). Failure tolerance can be improved by using parallel paths. The SRM 24/16 solution has been proposed, which allows for operation with four parallel paths. In this paper, a mathematical model designed to analyse the problem under consideration is provided. Based on numerical calculations, the influence of typical faults (open and partial short circuit in one of the paths) on the electromagnetic torque generated as well as its ripple and (source and phase) currents were determined. The higher harmonics of the source current (diagnostic signal) were determined. Laboratory tests were performed to verify the various configurations for the symmetric and emergency operating states. The feasibility of SRM correct operation monitoring was determined from an FFT analysis of the source current.

Suggested Citation

  • Mariusz Korkosz & Jan Prokop & Piotr Bogusz, 2024. "The Effect of the Number of Parallel Winding Paths on the Fault Tolerance of a Switched Reluctance Motor," Energies, MDPI, vol. 17(22), pages 1-21, November.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:22:p:5701-:d:1521094
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