3D MEC modeling of a hybrid-excited claw pole alternator incorporating the rotor motion

The paper is devoted to the modeling of a hybrid-excited claw pole alternator (HECPA) by means of a variable position 3D magnetic equivalent circuit (MEC). The study is initiated by the derivation of a MEC with the rotor position kept at the maximum flux linkage between the rotor and stator, enabling the investigation of the steady-state features. The incorporation of the rotor position in the MEC is then considered. A dedicated numerical procedure based on the Newton-Raphson algorithm is developed for the resolution of the proposed variable position MEC. The obtained fluxes, for the different considered positions, allow the prediction of the HECPA time-varying features under no-load operation. A comparison between the results predicted by the variable position MEC and those computed by finite element analysis reveals a good agreement.

[1]  Joshua M Williams,et al.  Incorporating Motion in Mesh-Based Magnetic Equivalent Circuits , 2010, IEEE Transactions on Energy Conversion.

[2]  Michel Hecquet,et al.  Modeling of a claw-pole alternator using permeance network coupled with electric circuits , 1995 .

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

[4]  Xiaohua Bao,et al.  Optimal design of a hybrid excitation claw-pole alternator based on a 3-D MEC method , 2005, 2005 International Conference on Electrical Machines and Systems.

[5]  Amina Ibala,et al.  Hybrid excited claw pole alternators: Attempt to satisfy the increasing power need on board , 2014, 2014 17th International Conference on Electrical Machines and Systems (ICEMS).

[6]  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.

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

[8]  Fengge Zhang,et al.  Magnetic Field Analysis and Performance Calculation for New Type of Claw Pole Motor with Permanent Magnet Outer Rotor , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[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.