NDLI: Electromechanical Modeling of a Permanent-Magnet Spherical Actuator Based on Magnetic-Dipole-Moment Principle

Content Provider	IEEE Xplore Digital Library
Author	Chee Kian Lim I-Ming Chen Liang Yan Guilin Yang Kok-Meng Lee
Copyright Year	1982
Abstract	Theoretical modeling in any engineering design is of paramount importance as it establishes the interrelationship between variables being analyzed in a given condition. With regard to the design of a permanent-magnet spherical actuator, electromechanical modeling is crucial as it correlates the input parameters such as current to the output mechanical torque. In this paper, a new approach in electromechanical-torque formulation for this class of spherical actuator employing the magnetic-dipole-moment principle is being discussed. Derivation from first principle and the extension of this novel method in the acquisition of the 3-D resultant torque induced on the rotor are presented. The proposed approach circumvents the need for electromagnetic-energy analysis within the air gap between the rotor and stator poles and, henceforth, providing a direct computation of the resultant torque. The validity of the proposed analytical torque model was verified against numerical and empirical data. Comparisons between the 3-D torque results demonstrate the correctness and soundness of the proposed electromechanical torque model.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	1640
Ending Page	1648
Page Count	9
File Size	1287706
File Format	PDF
ISSN	02780046
Volume Number	56
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Actuators Torque Magnetic analysis Electromagnetic analysis Analytical models Manufacturing Induction motors Design engineering Stators Robots permanent-magnet (PM) spherical actuator Electromechanical torque modeling magnetic-dipole-moment principle
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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