On the sizing of the PM excitation of a hybrid claw pole alternator

The paper is devoted to a 3D-finite element analysis (FEA) of a hybrid-excited claw pole alternator (HECPA) with emphasis on the sizing of the permanent magnet (PM) excitation and it effect on the back-EMF production capability and eddy current loss. The HECPA is equipped by three sources of excitation : (i) a toroidal field in the stator, (ii) a NdFeB PM in the rotor and (iii) two lateral ferrite PMs mounted on the magnetic collector. The study is initiated by the description of the topology of the HECPA. Then, an analysis of the flux paths through the magnetic circuit is carried out, prior an investigating by 3D FEA of the effects on the PMs widths on the back-EMF production capability as well as on the eddy current loss. The study is achieved by the a 3D FEA-based computation of the features of the HECPA with optimized PM excitation.

[1]  G. Henneberger,et al.  Transient 3-D FEM computation of eddy-current losses in the rotor of a claw-pole alternator , 2004, IEEE Transactions on Magnetics.

[2]  Avo Reinap,et al.  Iron loss calculation in a claw-pole structure , 2004 .

[3]  R. Wang,et al.  Extra high speed modified Lundell alternator parameters and open/short-circuit characteristics from global 3-D-FE magnetic field solutions , 1992 .

[4]  A. Foggia,et al.  Influence of Magnetic Materials on Claw Pole Machines Behavior , 2010, IEEE Transactions on Magnetics.

[5]  Y. Kuroda,et al.  Improvement of a claw pole motor using additional ferrite magnets for hybrid electric vehicles , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[6]  Dhouha Elloumi,et al.  Improvement of the back-EMF production capability of a hybrid-excited CPA , 2016, 2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER).

[7]  Amina Ibala,et al.  MEC-Based Sizing of a Hybrid-Excited Claw Pole Alternator , 2015, IEEE Transactions on Industry Applications.

[8]  G. Henneberger,et al.  Eddy-current computation in the claws of a synchronous claw-pole alternator in generator mode , 2002 .

[9]  A. Masmoudi,et al.  Lumped Circuit Accounting for the Rotor Motion Dedicated to the Investigation of the Time-Varying Features of Claw Pole Topologies , 2015, IEEE Transactions on Magnetics.

[10]  Chaohui Zhao,et al.  On hybrid excitation claw-pole synchronous generator with magnetic circuit series connection , 2008, 2008 International Conference on Electrical Machines and Systems.

[11]  W. Marsden.  I and J , 2012 .

[12]  Amina Ibala,et al.  3D FEA based feature investigation of a claw pole alternator with DC excitation in the stator , 2010, 2010 7th International Multi- Conference on Systems, Signals and Devices.

[13]  Frédéric Wurtz,et al.  Sizing of automotive claw-pole alternator based on analytical modeling , 2005 .

[14]  Jian Guo,et al.  A Novel Dual-Stator Hybrid Excited Synchronous Wind Generator , 2009, IEEE Transactions on Industry Applications.