Citation:
Liang W, Fei W, Luk PC-K. (2017) Analytical Investigation of Sideband Electromagnetic Vibration in Integral-Slot PMSM Drive with SVPWM Technique. IEEE Transactions on Power Electronics, Volume 32, Issue 6, June 2017, pp. 4785-4795
Abstract:
This paper provides a comprehensive investigation
into the electromagnetic vibration associated with the sideband
harmonic components introduced by space vector pulse
width modulation applied in integral-slot permanent magnet
synchronous machine drives. The critical permanent magnet,
armature reaction, and sideband magnetic field components,
which are the primary causes for sideband electromagnetic
vibration in integral-slot permanent magnet synchronous machines,
are identified. The analytical derivations of the magnetic
field components are carried out, and amplitudes and
frequencies of the resultant sideband radial electromagnetic force
components are obtained. Furthermore, the proposed models
of the sideband radial electromagnetic force components are
incorporated into the vibration model to analytically evaluate
the corresponding sideband electromagnetic vibrations of the
machine. Experimental tests on an integral-slot permanent magnet
synchronous machine drive are comprehensively performed
to confirm the validity and accuracy of the analytical models.
Not only can the validated analytical models offer insightful
details in understanding the impacts of the key factors, such
as operation conditions, machine geometry, electromagnetic and
power converter parameters, on the sideband electromagnetic
vibration, but also can be readily extended to assess and reduce
noise in integral-slot permanent magnet synchronous machine drives.