Modelling of Permanent-Magnet Synchronous Machines with Non-Sinusoidal Flux Linkage
Paper in proceedings, 2002

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.

Non-sinusoidal field distribution

permanent-magnet machines

torque ripple

synchronous motors


Oskar Wallmark

Department of Electric Power Engineering, Power Electronics and Wind Energy

Proc. IEEE Nordic Workshop on Power and Industrial Electronics

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

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