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Experimental verification of deep flux-weakening operation of a 50 kW IPM machine by using single current regulator

TitleExperimental verification of deep flux-weakening operation of a 50 kW IPM machine by using single current regulator
Publication TypeConference Paper
Year of Publication2009
AuthorsZhang, J., L. Xu, M. K. Guven, S. Chi, and M. S. Illindala
Conference Name2009 IEEE Energy Conversion Congress and Exposition
Pagination3647 - 3652
Date Published09/2009
PublisherIEEE
Conference LocationSan Jose, CA
Keywordsconstant power speed ratio, CPSR, deep flux-weakening operation, interior permanent magnet machine, single current regulator
Abstract

This paper analyzes critical control issues associated with the deep flux-weakening operation of interior permanent magnet (IPM) synchronous machines. Then we review the single-current-regulator control algorithm which controls the d-axis current actively and gives a fixed q-axis voltage command. To achieve better operational efficiency and performance, improvements are made to choose an optimal qaxis voltage for variable speeds and loads. The control algorithm is implemented on a 50 kW IPM machine. Test results available to date including 7:1 constant power speed ratio (CPSR) operation are presented to verify the theoretical analysis.

DOI10.1109/ECCE.2009.5316297