Modelling of Permanent-Magnet Synchronous Machines with Non-Sinusoidal Flux Linkage
Paper in proceeding, 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
Author
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