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Modelling of Permanent-Magnet Synchronous Machines with Non-Sinusoidal Flux Linkage

Oskar Wallmark (Institutionen för elkraftteknik, Kraftelektronik och vindenergi)
Proc. IEEE Nordic Workshop on Power and Industrial Electronics (2002)
[Konferensbidrag, refereegranskat]

In this paper, a model of the permanent-magnet synchronous machine is derived including the effects of a non-sinusoidal flux density distribution, produced by the permanent magnets on the rotor. The intention of the derivation is to yield a framework model, suitable to add additional phenomena, by other researchers. It is shown that the non-sinusoidal flux density will produce current ripple which may affect the performance of various rotor-position estimation algorithms. The current ripple is demonstrated through measurements on an existing machine.

Nyckelord: Non-sinusoidal field distribution, permanent-magnet machines, synchronous motors, torque ripple



Denna post skapades 2006-08-25.
CPL Pubid: 2411

 

Institutioner (Chalmers)

Institutionen för elkraftteknik, Kraftelektronik och vindenergi (1900-2004)

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur