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A Novel Matrix Transformation for Decoupled Control of Modular Multiphase PMSM Drives.

Authors :
Rubino, Sandro
Dordevic, Obrad
Armando, Eric
Bojoi, Iustin Radu
Levi, Emil
Source :
IEEE Transactions on Power Electronics. Jul2021, Vol. 36 Issue 7, p8088-8101. 14p.
Publication Year :
2021

Abstract

When multiphase drives are used for specific applications, the modular solutions are preferred as they use consolidated power electronics technologies. The literature reports two modeling approaches for multiphase machines having a modular configuration of the stator winding. The first approach is the vector space decomposition (VSD) that models the energy conversion as for an equivalent three-phase machine. The main alternative to the VSD is the multistator (MS) modeling that emphasizes machine modularity in terms of torque production. Both approaches have advantages and disadvantages for multiphase machines with a modular structure. Therefore, this article aims to combine the VSD and MS approaches, defining a new matrix transformation and, hence, developing a new modeling approach for multiphase machines with a modular structure. The proposed transformation allows a decoupled and independent torque control of the sets composing the machine, preserving the torque regulation's modularity. Together with a new vector control scheme, it has been applied to a modular permanent magnet synchronous machine (PMSM) with a nonstandard spatial shift between windings. Experimental results are presented for a nine-phase PMSM prototype with a triple-three-phase stator winding configuration. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08858993
Volume :
36
Issue :
7
Database :
Academic Search Index
Journal :
IEEE Transactions on Power Electronics
Publication Type :
Academic Journal
Accession number :
149122615
Full Text :
https://doi.org/10.1109/TPEL.2020.3043083