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Calculation of Distributed Magnetic Flux Density under the Stator-Turn Fault Condition

  • Received : 2013.01.29
  • Published : 2013.07.20

Abstract

This paper proposed an analytical model for the distributed magnetic field analysis of interior permanent magnet-type blush-less direct current motors under the stator-turn fault condition using the winding function theory. Stator-turn faults cause significant changes in electric and magnetic characteristic. Therefore, many studies on stator-turn faults have been performed by simulation of the finite element method because of its non-linear characteristic. However, this is difficult to apply to on-line fault detection systems because the processing time of the finite element method is very long. Fault-tolerant control systems require diagnostic methods that have simple processing systems and can produce accurate information. Thus analytical modeling of a stator-turn fault has been performed using the winding function theory, and the distributed magnetic characteristics have been analyzed under the fault condition. The proposed analytical model was verified using the finite element method.

Acknowledgement

Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP), NIPA (National IT Industry Promotion Agency)

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Cited by

  1. Early Detection Technique for Stator Winding Inter-Turn Fault in BLDC Motor Using Input Impedance vol.51, pp.1, 2015, https://doi.org/10.1109/TIA.2014.2330067
  2. Finite-Element Analysis of the Demagnetization of IPM-Type BLDC Motor With Stator Turn Fault vol.50, pp.2, 2014, https://doi.org/10.1109/TMAG.2013.2283498