Research on the Parameters and Performances of a 4QT Prototype Machine Used for HEV

A four-quadrant transducer (4QT) is a hybrid electric vehicle (HEV) power train concept. In this paper, a 4QT prototype machine, which is integrated radially by two permanent-magnet synchronous machines [one stator machine (SM) and one double-rotor machine (DRM)], is investigated. The inductances of both the SM and the DRM are calculated with a phasor-diagram based 2-D finite-element method (FEM), which can include the effects of eddy current and saturation. The calculated results show that the effect of eddy current can be neglected for both the SM and DRM inductances, and the cross-magnetization influence on the SM inductances can be ignored but is remarkable on the DRM inductances. The magnetic coupling between the SM and the DRM is calculated with 2-D FEM, and it is found that little magnetic coupling exists, so the SM and the DRM can be controlled independently, which is a very good feature for HEV applications. With the effect of skewed slots considered, the torque and no-load line-to-line back electromotive force (BEMF) curves of the SM and the DRM are calculated with multislice 2-D time-stepping FEM. The average torques of the SM and the DRM both meet the requirements, and the torque ripples are quite low. The calculated and tested no-load line-to-line BEMF curves of the SM and the DRM are both in good agreements. Both the BEMF curves of the SM and the DRM are somewhat similar to sinusoidal ones, which proves a good design of the magnetic structure

[1]  Chandur Sadarangani,et al.  Two-dimensional finite element method simulation of a four-quadrant transducer prototype machine considering skewed slots , 2006 .

[2]  C. Sadarangani,et al.  The four-quadrant energy transducer , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[3]  Thomas Bäckström,et al.  Integrated Energy Transducer Drive for Hybrid Electric Vehicles , 2000 .

[4]  Kazumasa Ide,et al.  Analysis of saturated synchronous reactances of large turbine generator by considering cross-magnetizing reactances using finite elements , 1999 .

[5]  C. Sadarangani,et al.  A four-quadrant HEV drive system , 2002, Proceedings IEEE 56th Vehicular Technology Conference.

[6]  S. Barsali,et al.  A control strategy to minimize fuel consumption of series hybrid electric vehicles , 2004, IEEE Transactions on Energy Conversion.

[7]  Jordi Riera,et al.  A proposal for the propulsion system of a series hybrid electric vehicle , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[8]  Srdjan M. Lukic,et al.  Effects of drivetrain hybridization on fuel economy and dynamic performance of parallel hybrid electric vehicles , 2004, IEEE Transactions on Vehicular Technology.

[9]  Mutasim A. Salman,et al.  Control strategies for parallel hybrid vehicles , 2000, Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334).

[10]  S. Sasaki,et al.  Toyota's newly developed hybrid powertrain , 1998, Proceedings of the 10th International Symposium on Power Semiconductor Devices and ICs. ISPSD'98 (IEEE Cat. No.98CH36212).

[11]  M. Trlep,et al.  Evaluation of saturation and cross-magnetization effects in interior permanent magnet synchronous motor , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[12]  Karin Jonasson.  Analysing hybrid drive system topologies , 2002 .