Abstract

This work introduces a novel permanent-magnet synchronous machine (PMSM) architecture that employs rotational asymmetry to increase the torque density output in constant power variable speed applications. A population based multi-objective design optimization algorithm is used to design and analyze the new machine topology. A number of design studies are presented to show that the proposed machine structure outperforms a conventional PMSM machine. Validation of the analytical machine design model using a three dimensional finite element analyses is performed and the results are presented. Finally, a case study in which a hybrid electric bus traction motor is designed is presented.

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Electrical Engineering

Committee Chair

SCOTT D. SUDHOFF

Date of Award

Fall 2014

First Advisor

SCOTT D. SUDHOFF

Committee Member 1

JOHN A. NYENHUIS

Committee Member 2

OLEG WASYNCZUK

Committee Member 3

STEVEN D. PEKAREK

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