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Title: Cogging Torque Minimization in Transverse Flux Machines

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.

Authors:
; ; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
OSTI Identifier:
1351844
Report Number(s):
NREL/CP-5D00-66390
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2016 IEEE Energy Conversion Congress and Exposition (ECCE), 18-22 September 2016, Milwaukee, Wisconsin
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; transverse flux machine; permanent magnet machine; cogging torque reduction; design of experiment; optimization

Citation Formats

Husain, Tausif, Hasan, Iftekhar, Sozer, Yilmaz, Husain, Iqbal, and Muljadi, Eduard. Cogging Torque Minimization in Transverse Flux Machines. United States: N. p., 2017. Web. doi:10.1109/ECCE.2016.7854923.
Husain, Tausif, Hasan, Iftekhar, Sozer, Yilmaz, Husain, Iqbal, & Muljadi, Eduard. Cogging Torque Minimization in Transverse Flux Machines. United States. doi:10.1109/ECCE.2016.7854923.
Husain, Tausif, Hasan, Iftekhar, Sozer, Yilmaz, Husain, Iqbal, and Muljadi, Eduard. Thu . "Cogging Torque Minimization in Transverse Flux Machines". United States. doi:10.1109/ECCE.2016.7854923.
@article{osti_1351844,
title = {Cogging Torque Minimization in Transverse Flux Machines},
author = {Husain, Tausif and Hasan, Iftekhar and Sozer, Yilmaz and Husain, Iqbal and Muljadi, Eduard},
abstractNote = {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.},
doi = {10.1109/ECCE.2016.7854923},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Feb 16 00:00:00 EST 2017},
month = {Thu Feb 16 00:00:00 EST 2017}
}

Conference:
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