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Model of Double-Star IPM Machines with General Mutual Inductance Relationships between the Two Three-Phase Winding Sets.

Authors :
Kallio, S.
Andriollo, M.
Karttunen, J.
Peltoniemi, P.
Silventoinen, P.
Source :
International Review of Electrical Engineering; Nov/Dec2013, Vol. 8 Issue 6, p1717-1727, 11p
Publication Year :
2013

Abstract

This paper proposes a decoupled d-q model of double-star interior-permanent-magnet (IPM) machines, whose stator consists of two three-phase winding sets displaced by an arbitrary angle. The model is based on the elaboration of the inductance parameters and is obtained by deriving a transformation that diagonalizes the original 6 x 6 stator inductance matrix of the machine. In the derivation of the transformation, the common assumption of the regularity of the mutual inductances between the two three-phase sets is omitted. Thus, the transformation diagonalizes the stator inductance matrix even if the mutual inductances do not have specific symmetry. It is demonstrated that in order to obtain decoupled reference frames in such a case, the transformation depends on the machine parameters. The validity of the machine model is verified by experimental tests with a double-star IPM machine, in which the two three-phase winding sets are displaced by 30 electrical degrees. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18276660
Volume :
8
Issue :
6
Database :
Complementary Index
Journal :
International Review of Electrical Engineering
Publication Type :
Academic Journal
Accession number :
95001804