Airgap Field Space Harmonics, Parasitic Torques, Radial Forces, and Noise Basics

Authored by: Ion Boldea

Induction Machines Handbook

Print publication date:  June  2020
Online publication date:  May  2020

Print ISBN: 9780367466121
eBook ISBN: 9781003033417
Adobe ISBN:


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The airgap field space harmonics – produced by mmf space harmonics, airgap magnetic permeance harmonics, and magnetic saturation – give rise to parasitic torques (time pulsations in the torque), strong local variations in time of radial forces and thus additional vibration and more.

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