%0 Journal Article
%T Magnetic Decoupling Design and Experimental Validation of a Radial-Radial Flux Compound-Structure Permanent-Magnet Synchronous Machine for HEVs
%A Ping Zheng
%A Chengde Tong
%A Jingang Bai
%A Yi Sui
%A Zhiyi Song
%A Fan Wu
%J Energies
%D 2012
%I MDPI AG
%R 10.3390/en5104027
%X 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.
%K compound-structure permanent-magnetic synchronous machine (CS-PMSM)
%K function validation
%K hybrid electric vehicle
%K independent control
%K magnetic decoupling
%K radial-radial flux
%U http://www.mdpi.com/1996-1073/5/10/4027