New 5-Phase Concentrated Winding Machine with Bi-Harmonic Rotor for Automotive Application
TypeCommunications avec actes
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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LU, Li; ASLAN, Bassel; KOBYLANSKI, Luc; SANDULESCU, Paul; MEINGUET, Fabien; KESTELYN, Xavier; SEMAIL, Eric (IEEE - Institute of Electrical and Electronics Engineers, 2012)Multi-phase synchronous machines are more and more used in specific applications where high power density, low bus voltage, wide speed range and fault-tolerant capabilities are required. Due to the high number of degrees ...
Influence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-Shape Interior PM Electrical Machine ASLAN, Bassel; KORECKI, Julien; VIGIER, Thimoté; SEMAIL, Eric (DAVID PUBLISHING, 2012)This paper investigates the influence of the rotor structure on torque and flux weakening region of V-shape IPM (interior permanent magnet) machine from TOYOTA PRIUS type. More specifically, always keeping the same magnet ...
Influence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-shape Interior PM Electrical Machine ASLAN, Bassel; KORECKI, Julien; VIGIER, Thimoté; SEMAIL, Eric (2011)This paper investigates the influence of the rotor structure on torque and Flux weakening region of V-shape IPM machine from TOYOTA PRIUS type, more specifically, keeping always the same magnet volume, we study the effect ...
General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding ASLAN, Bassel; SEMAIL, Eric; LEGRANGER, Jerome (IEEE Transaction on Energy Conversion, 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 ...
ASLAN, Bassel; SEMAIL, Eric; LEGRANGER, Jerome (2013)La présente invention porte sur une machine électrique tournante 5 polyphasée à au moins cinq phases. L'invention trouve une application particulièrement avantageuse dans le domaine des alternateurs, des alterno-démarreurs, ...