Magnetic Decoupling Design and Experimental Validation of a Radial-Radial Flux Compound-Structure Permanent-Magnet Synchronous Machine for HEVs

Ping Zheng, Chengde Tong, Jingang Bai, Yi Sui, Zhiyi Song and Fan Wu
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Ping Zheng: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
Chengde Tong: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
Jingang Bai: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
Yi Sui: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
Zhiyi Song: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
Fan Wu: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China

Energies, 2012, vol. 5, issue 10, 1-13

Abstract: The radial-radial flux compound-structure permanent-magnet synchronous machine (CS-PMSM), integrated by two concentrically arranged permanent-magnet electric machines, is an electromagnetic power-splitting device for hybrid electric vehicles (HEVs). As the two electric machines share a rotor as structural and magnetic common part, their magnetic paths are coupled, leading to possible mutual magnetic-field interference and complex control. In this paper, a design method to ensure magnetic decoupling with minimum yoke thickness of the common rotor is investigated. A prototype machine is designed based on the proposed method, and the feasibility of magnetic decoupling and independent control is validated by experimental tests of mutual influence. The CS-PMSM is tested by a designed driving cycle, and functions to act as starter motor, generator and to help the internal combustion engine (ICE) operate at optimum efficiency are validated.

Keywords: compound-structure permanent-magnetic synchronous machine (CS-PMSM); function validation; hybrid electric vehicle; independent control; magnetic decoupling; radial-radial flux (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2012
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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