Cogging Torque Minimization in Transverse Flux Machines

Eduard Muljadi, Tausif Husain, Iftekhar Hasan, Yilmaz Sozer, Iqbal Husain

Research output: Contribution to conferencePaper

12 Scopus Citations

Abstract

This paper presents the design considerations in cogging torque minimization in two types of transverse flux machines. The machines have a double stator-single rotor configuration with flux concentrating ferrite magnets. One of the machines has pole windings across each leg of an E-Core stator. Another machine has quasi-U-shaped stator cores and a ring winding. The flux in the stator back iron is transverse in both machines. Different methods of cogging torque minimization are investigated. Key methods of cogging torque minimization are identified and used as design variables for optimization using a design of experiments (DOE) based on the Taguchi method. A three-level DOE is performed to reach an optimum solution with minimum simulations. Finite element analysis is used to study the different effects. Two prototypes are being fabricated for experimental verification.
Original languageAmerican English
Number of pages8
DOIs
StatePublished - 2017
Event2016 IEEE Energy Conversion Congress and Exposition (ECCE) - Milwaukee, Wisconsin
Duration: 18 Sep 201622 Sep 2016

Conference

Conference2016 IEEE Energy Conversion Congress and Exposition (ECCE)
CityMilwaukee, Wisconsin
Period18/09/1622/09/16

NREL Publication Number

  • NREL/CP-5D00-66390

Keywords

  • cogging torque reduction
  • design of experiment
  • optimization
  • permanent magnet machine
  • transverse flux machine

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