Finite-Element Analysis and Experiment of Current Superimposition Variable Flux Machine Using Permanent Magnet

We have proposed a current superimposition variable flux reluctance machine that can control its torque constant. This machine can be operated by using a six-phase superimposition current composed of ac-armature and dc-field currents. In this paper, we propose a current superimposition variable flux machine using permanent magnets. The permanent magnets increase the dc magnetic flux. First, the structure and operational principle of this machine are described. Next, the torque characteristics are computed under vector control. Finally, the computed characteristics are verified by carrying out measurements on a prototype.

[1]  Chunhua Liu,et al.  Design and Analysis of a Flux-Controllable Linear Variable Reluctance Machine , 2014, IEEE Transactions on Applied Superconductivity.

[2]  Tadashi Fukami,et al.  Assessment of Core Losses in a Flux-Modulating Synchronous Machine , 2011 .

[3]  Z. Zhu,et al.  Electromagnetic Performance of Novel Synchronous Machines With Permanent Magnets in Stator Yoke , 2014, IEEE Transactions on Magnetics.

[4]  T. Fukami,et al.  Magnet Arrangement in Novel Flux-Modulating Synchronous Machines With Permanent Magnet Excitation , 2015, IEEE Transactions on Magnetics.

[5]  X. Liu,et al.  Comparative Study of Novel Variable Flux Reluctance Machines With Doubly Fed Doubly Salient Machines , 2013, IEEE Transactions on Magnetics.

[6]  X. Liu,et al.  Winding configurations and performance investigations of 12-stator pole variable flux reluctance machines , 2013, 2013 IEEE Energy Conversion Congress and Exposition.

[7]  Z. Q. Zhu,et al.  Analysis of Novel Multi-Tooth Variable Flux Reluctance Machines With Different Stator and Rotor Pole Combinations , 2015, IEEE Transactions on Magnetics.

[8]  Z. Q. Zhu,et al.  Evaluation of efficiency optimized variable flux reluctance machine for EVs/HEVs by comparing with interior PM machine , 2014, 2014 17th International Conference on Electrical Machines and Systems (ICEMS).

[9]  N. Niguchi,et al.  Permanent magnet assisted current superimposition variable flux machine , 2015, 2015 IEEE Magnetics Conference (INTERMAG).

[10]  Shoji Shimomura,et al.  Novel slipring-less winding-excited synchronous machine , 2011, 2011 International Conference on Electrical Machines and Systems.

[11]  Tadashi Fukami,et al.  A Multipole Synchronous Machine With Nonoverlapping Concentrated Armature and Field Windings on the Stator , 2012, IEEE Transactions on Industrial Electronics.

[12]  Z.Q. Zhu,et al.  Influence of rotor pole number on electromagnetic performance of novel variable flux reluctance machine with DC-field coil in stator , 2012, Proceedings of The 7th International Power Electronics and Motion Control Conference.

[13]  M. Obata,et al.  Performance of PMASynRM With Ferrite Magnets for EV/HEV Applications Considering Productivity , 2014, IEEE Transactions on Industry Applications.

[14]  Xu Liu,et al.  Integrated Field and Armature Current Control Strategy for Variable Flux Reluctance Machine Using Open Winding , 2015, IEEE Transactions on Industry Applications.

[15]  K. Schleicher,et al.  A novel hybrid excited synchronous machine for (H)EV applications , 2014, 2014 International Conference on Electrical Machines (ICEM).

[16]  B. G. Fernandes,et al.  A High-Torque-Density Permanent-Magnet Free Motor for in-Wheel Electric Vehicle Application , 2012, IEEE Transactions on Industry Applications.

[17]  T. Fukami,et al.  Prediction of field currents in flux-modulating synchronous machines under loaded conditions , 2012, 2012 XXth International Conference on Electrical Machines.

[18]  Z. Zhu,et al.  Comparison of variable flux reluctance, switched flux and fractional slot PM12-stator slots machines having 10- and 14-rotor poles , 2014, 2014 17th International Conference on Electrical Machines and Systems (ICEMS).

[19]  Z. Zhu,et al.  Stator/Rotor Pole Combinations and Winding Configurations of Variable Flux Reluctance Machines , 2014, IEEE Transactions on Industry Applications.

[20]  Robert D. Lorenz,et al.  Rare Earth Reduction Using a Novel Variable Magnetomotive Force Flux-Intensified IPM Machine , 2014 .

[21]  Z. Zhu,et al.  Electromagnetic Performance of Novel Variable Flux Reluctance Machines With DC-Field Coil in Stator , 2013, IEEE Transactions on Magnetics.