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Magnetic Circuit Model of PM Motor-Generator to Predict Radial Forces (2004)

Dever, Timothy P. ; McLallin, Kerry ; Kascak, Peter E. ; [et al.]

In: CASI

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Publication Date: 2019-08-13

Description: A magnetic circuit model is developed for a PM motor for flywheel applications. A sample motor is designed and modeled. Motor configuration and selection of materials is discussed, and the choice of winding configuration is described. A magnetic circuit model is described, which includes the stator back iron, rotor yoke, permanent magnets, air gaps and the stator teeth. Iterative solution of this model yields flux linkages, back EMF, torque, power, and radial force at the rotor caused by eccentricity. Calculated radial forces are then used to determine motor negative stiffness.

Keywords: Electronics and Electrical Engineering

Type: NASA/CR-2004-212620 , AIAA Paper 2003-6068 , E-14178 , First International Energy Conversion Engineering Conference; Aug 17, 2003 - Aug 21, 2003; Portsmouth, VA; United States

Format: application/pdf

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