Date of Award

Spring 1998

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)


Electrical and Computer Engineering

First Advisor

Arkadan, Abdul-Rahman A.

Second Advisor

Brown R. H.

Third Advisor

Hock, J. L.


Synchronous reluctance machines are becoming a possible alternative to dc drives in many applications including those in hybrid electric vehicles. Therefore it is very desirable to predict the performance characteristics of this class of machines so the designer can arrive at an optimal or near optimal design. As can be seen from the current published literature simple dqO models are used to predict the performance of these machines. Accordingly, the effects of saturation due to loading conditions, as well as space harmonics due to the complicated machine geometry and armature-winding layout are not properly accounted for. In this work, detailed, computer-aided models of the machine and the associated power conditioner are developed. Accordingly, the effects of saturation, space harmonics as well as time harmonics due to the switching of the power conditioner are fully accounted for. In addition, the results of implementing the developed model for a prototype 100 kW synchronous reluctance motor drive system for use in hybrid electric vehicles are presented. Furthermore, the simulation results are verified by comparison to test data, whenever possible.



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