Two-dimensional finite element method simulation of a four-quadrant transducer prototype machine considering skewed slots

A four-quadrant transducer (4QT) electric machine is an integrated electric machine used for hybrid electric vehicles. In this article a 4QT prototype machine that is radially integrated by two permanent-magnet synchronous machines is analyzed. Skewed slots are adopted for the two machines, and the multislice two-dimensional time-stepping finite element method is used to calculate the performance. The dividing method of the 4QT, the choice of calculated cutplanes and the determination of the number of slices are discussed. The no-load and load performance of the 4QT are calculated. The 4QT prototype machine was tested. The tested no-load line-to-line back electromotive force curves are in good agreement with the calculated ones, which verifies the feasibility of the proposed method.

[1]  A. Kameari,et al.  3-D analysis of induction motor with skewed slots using regular coupling mesh , 2000 .

[2]  Skewed stator synchronous motor modeling by a 2D electromagnetic simulation software , 1991 .

[3]  J.P. Wang,et al.  A fast lumped parameter model for magnet skew in a motor , 1999, IEEE International Magnetics Conference.

[4]  西村 欣剛,et al.  The 25th Annual Conference Of The IEEE Industrial Electronics Society , 2000, IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029).

[5]  Weinong Fu,et al.  Generation and rotation of 3-D finite element mesh for skewed rotor induction motors using extrusion technique , 1999 .

[6]  Nabeel A. O. Demerdash,et al.  Modeling of effects of skewing of rotor mounted permanent magnets on the performance of brushless DC motors , 1991 .

[7]  L. Vandevelde,et al.  Multi-slice FE modeling of electrical machines with skewed slots-the skew discretization error , 2001 .

[8]  In-Soung Jung,et al.  Performance analysis of skewed PM linear synchronous motor according to various design parameters , 2001 .

[9]  F. Piriou,et al.  A time-stepped 2D-3D finite element method for induction motors with skewed slots modeling , 1999 .

[10]  Francis Piriou,et al.  Comparison between two approaches to model induction machines with skewed slots , 2000 .

[11]  Yoshiaki Inoue,et al.  Magnetic field analysis in condenser motor considering skewed slot effects , 1997 .