New 5-Phase Concentrated Winding Machine with Bi-Harmonic Rotor for Automotive Application
Communication avec acte
For a power range from 10 to 30 kW, 5-phase machines are well adapted to low-voltage (48V) supply thanks to their reduced current per phase. For three-phase machines but with higher voltages (>120V), machines with a number of slots per pole and per phase spp equal to 0.5 (as the 12slots/8poles combination) are widely used in hybrid automotive applications when a wide speed range is required. The reason is that the value of spp=0.5 guarantees no sub-harmonics and thus induces low level of permanent magnet rotor losses. In this paper a 20slots/8poles/5phases machine is chosen. With a winding factor of only 0.588 for the first harmonic, this machine is only interesting if its high third harmonic winding factor (0.951) is used. Thus, a new bi-harmonic rotor structure is presented. Thanks to adequate control with flux-weakening and ratio r between first and third harmonic currents, the maximum torque versus speed characteristic is determined.
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Procédé de fabrication d’une machine électrique tournante synchrone polyphasée, et machine correspondante BrevetASLAN, Bassel; SEMAIL, Eric; LEGRANGER, Jerome (2013)La présente invention concerne une machine électrique tournante synchrone polyphasée dont le rotor comprend des aimants permanents. Plus particulièrement l'invention concerne une machine électrique tournante pour des ...
Communication avec acteZAHR, Hussein; SEMAIL, Eric; ASLAN, Bassel; SCUILLER, Franck (IEEE, 2016)The paper studies the impact of first and third current-harmonic repartition in a five-phase Permanent Magnet machine whose Electromotive Forces (emfs) have first and third harmonics of the same amplitude. With a five-phase ...
General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding Article dans une revue avec comité de lectureASLAN, Bassel; SEMAIL, Eric; LEGRANGER, Jerome (Institute of Electrical and Electronics Engineers, 2014)this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical ...
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