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http://dx.doi.org/10.5370/KIEE.2013.62.11.1541

A Study on Torque Ripple Reduction of the Multi-degree of Freedom Operated Spherical Motor  

Kang, Dong-Woo (Motor R&D Part, Samsung Electronics)
Lee, Ju (Div. of Electrical and Biomedical Engineering, Hanyang University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.11, 2013 , pp. 1541-1543 More about this Journal
Abstract
This paper presents a spherical motor which can control in multi-degree of freedom operation. The spherical motor has been researched by many types of structure. Thhis paper shows a spherical shaped airgap and surfaced permanent magnets. Especially, The motor consists of dual rotor cores. Unlike a cylindrical motor, the spherical motor design can be considered with azimuth direction on spherical coordinates. Therefore the permanent magnet surfaced on the rotor need to be designed optimally in order to generate a sinusoidal magnetic flux density in the airgap. This paper presents results of optimal design for reducing torque ripple of the multi-degree of freedom spherical motor.
Keywords
Dual rotor core; Multi-degree of freedom motor; Spherical motor; Torque ripple;
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