Document Type
Conference Proceeding
Publication Date
10-2005
Publisher
Institute of Electrical and Electronic Engineers (IEEE)
Source Publication
Conference Record of the 2005 Industry Applications Conference
Source ISSN
0197-2618
Abstract
Previous analytical work has shown that it is possible to design surface PM (SPM) machines using fractional-slot concentrated windings to achieve wide speed ranges of constant power operation by satisfying the optimal flux-weakening condition. This paper presents a 6 kW 36-slot/30-pole concentrated winding prototype SPM machine that has been designed using a closed-form analytical technique developed specifically for this class of machines. Experimental testing of this machine has been carried out to determine its performance capabilities, including flux-weakening operation. Detailed comparisons between analytical, finite element analysis (FEA), and experimental results are presented that confirm the ability of fractional-slot concentrated winding SPM machines to achieve their high-speed operating objectives. Important issues including the machine's back-emf voltage at top speed, eddy current losses in the magnets, and inverter performance are analyzed and discussed in detail.
Recommended Citation
El-Refaie, Ayman M.; Jahns, Thomas M.; McCleer, P. J.; and McKeever, J. W., "Experimental Verification of Optimal Flux Weakening in Surface PM Machines Using Concentrated Windings" (2005). Electrical and Computer Engineering Faculty Research and Publications. 685.
https://epublications.marquette.edu/electric_fac/685
Comments
Accepted version. "Experimental Verification of Optimal Flux Weakening in Surface PM Machines Using Concentrated Windings," Published as a part of the conference, Conference Record of the 2005 Industry Applications Conference, (October 2005). DOI. © 2005 Institute of Electrical and Electronic Engineers (IEEE). Used with permission.