Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33571
Title: An improved nodal method for circuit and multi-slice magnetic field coupled finite element analysis
Authors: Fu, WN 
Ho, SL 
Li, HL
Wong, HC
Keywords: Finite element analysis
Sliced field analysis
Issue Date: 2004
Publisher: Taylor & Francis
Source: Electric power components and systems, 2004, v. 32, no. 7, p. 671-689 How to cite?
Journal: Electric power components and systems 
Abstract: A general and simple method to couple arbitrarily connected circuits and multi-slice magnetic fields in the time stepping finite element analysis of electromechanical devices and electrical machines is presented in detail. The merits of the proposed method are that the sparsity of the finite element equations is improved, the formulations to be described will allow unequal division of the axial length of the motor in the multi-slice model, the stranded windings (with negligible eddy current) and solid conductors (with eddy current) in the field domain can be connected arbitrarily with the external circuits, and the coefficient matrix of the system is symmetrical and the nonlinear power electronic elements can be easily maneuvered in the formulations. As illustrating examples, the proposed approach is used to simulate the operations of a brushless d.c. motor and a hard disk drive spindle motor.
URI: http://hdl.handle.net/10397/33571
ISSN: 1532-5008
EISSN: 1532-5016
DOI: 10.1080/15325000490461073
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