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Experimental Verification of Deep Field Weakening Operation of a 50-kW IPM Machine by Using Single Current Regulator

TitleExperimental Verification of Deep Field Weakening Operation of a 50-kW IPM Machine by Using Single Current Regulator
Publication TypeJournal Article
Year of Publication2011
AuthorsZhang, J., L. Xu, M. K. Guven, S. Chi, and M. S. Illindala
JournalIEEE Transactions on Industry Applications
Volume47
Issue1
Pagination128 - 133
Date Published01/2011
ISSN0093-9994
Keywordsconstant power speed ratio, CPSR, deep fieldweakening operation, interior permanent magnet synchronous machine, IPM, single current regulator
Abstract

This paper analyzes critical control issues associated with the deep field weakening operation of interior permanent magnet (IPM) synchronous machines. The singlecurrent-regulator control algorithm is reviewed, 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 q -axis voltage for variable-speed and variable-load conditions. The control algorithm is implemented on a 50-kW IPM machine. Test results, including 7:1 constant power speed ratio operation, are presented to verify the theoretical analysis.

DOI10.1109/TIA.2010.2091478
Short TitleIEEE Trans. on Ind. Applicat.