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Electromagnetic design optimization of a modular linear flux-reversal motor

Nasiri Gheidari, Z ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1080/15325008.2016.1212952
  3. Publisher: Taylor and Francis Inc
  4. Abstract:
  5. Although modular linear flux-reversal permanent magnet motors are widely attractive for high reliability urban rail transit because of their advantages such as high power density, high reliability, low permanent magnet flux leakage problem, and improved fault-tolerant capability, they suffer from high thrust ripples. In this article the authors use a layer model for defining different optimization problems to improve thrust density, efficiency, and thrust ripples, independently and simultaneously. Design variables are chosen based on the sensitivity analysis of different objective functions relative to motor different geometrical parameters and some constraints are taken into account to avoid undesirable results. Then the proposed analytical model and optimization process are verified by time-stepping finite-element method
  6. Keywords:
  7. Modular linear flux-reversal permanent magnet motor ; Time-stepping finite-element analysis ; Efficiency ; Electric motors ; Geometry ; Light rail transit ; Linear motors ; Magnets ; Multiobjective optimization ; Optimization ; Permanent magnets ; Sensitivity analysis ; Geometrical parameters ; Imperialist competitive algorithms ; Layer model ; Permanent magnet motor ; Thrust density ; Thrust ripple ; Time-stepping finite elements ; Finite element method
  8. Source: Electric Power Components and Systems ; Volume 44, Issue 18 , 2016 , Pages 2112-2120 ; 15325008 (ISSN)
  9. URL: http://www.tandfonline.com/doi/abs/10.1080/15325008.2016.1212952?journalCode=uemp20