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.
|Advisor:||Sudhoff, Scott D.|
|Commitee:||Nyenhuis, John, Pekarek, Steve, Wasynczuk, Oleg|
|Department:||Electrical and Computer Engineering|
|School Location:||United States -- Indiana|
|Source:||DAI-B 76/08(E), Dissertation Abstracts International|
|Keywords:||Asymmetric, Asymmetrical pmsm, Electric machine design|
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