Energies 2012, 5(1), 119-137; doi:10.3390/en5010119
Article

Performance Analysis and Simulation of a Novel Brushless Double Rotor Machine for Power-Split HEV Applications

1 Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China 2 Department of Electrical Engineering, Beijing Institute of Technology, Beijing 100081, China
* Author to whom correspondence should be addressed.
Received: 8 September 2011; in revised form: 4 January 2012 / Accepted: 13 January 2012 / Published: 19 January 2012
(This article belongs to the Special Issue Electric and Hybrid Vehicles)
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Abstract: A new type of brushless double rotor machine (BDRM) is proposed in this paper. The BDRM is an important component in compound-structure permanent-magnet synchronous machine (CS-PMSM) systems, which are promising for power-split hybrid electric vehicle (HEV) applications. The BDRM can realize the speed adjustment between claw-pole rotor and permanent-magnet rotor without brushes and slip rings. The structural characteristics of the BDRM are described and its magnetic circuit model is built. Reactance parameters of the BDRM are deduced by an analytical method. It is found that the size characteristics of the BDRM are different from those of conventional machines. The new sizing and torque equations are analyzed and the theoretical results are used in the optimization process. Studies of the analytical magnetic circuit and finite element method (FEM) model show that the BDRM tends to have high leakage flux and low power factor, and then the method to obtain high power factor is discussed. Furthermore, a practical methodology of the BDRM design is developed, which includes an analytical tool, 2D field calculation and performance evaluation by 3D field calculation. Finally, different topologies of the BDRM are compared and an optimum prototype is designed.
Keywords: brushless; double rotor machine; hybrid electric vehicle; speed adjustment; claw-pole rotor

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MDPI and ACS Style

Zheng, P.; Wu, Q.; Zhao, J.; Tong, C.; Bai, J.; Zhao, Q. Performance Analysis and Simulation of a Novel Brushless Double Rotor Machine for Power-Split HEV Applications. Energies 2012, 5, 119-137.

AMA Style

Zheng P, Wu Q, Zhao J, Tong C, Bai J, Zhao Q. Performance Analysis and Simulation of a Novel Brushless Double Rotor Machine for Power-Split HEV Applications. Energies. 2012; 5(1):119-137.

Chicago/Turabian Style

Zheng, Ping; Wu, Qian; Zhao, Jing; Tong, Chengde; Bai, Jingang; Zhao, Quanbin. 2012. "Performance Analysis and Simulation of a Novel Brushless Double Rotor Machine for Power-Split HEV Applications." Energies 5, no. 1: 119-137.

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