A Comparison of Nodal- and Mesh-Based Magnetic Equivalent Circuit Models

The magnetic equivalent circuit (MEC) technique is a powerful analysis and design tool that combines relative accuracy with moderate computational effort. In this paper, a nodal-based MEC formulation and a mesh-based MEC formulation of a magnetic system are compared. The Newton-Raphson algorithm is...

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Bibliographic Details
Published inIEEE transactions on energy conversion Vol. 24; no. 2; pp. 388 - 396
Main Authors Derbas, H.W., Williams, J.M., Koenig, A.C., Pekarek, S.D.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2009
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algebra
Algorithms
Circuit analysis computing
Computational efficiency
Design engineering
Electric machines
Equivalent circuits
Inductors
Jacobian matrices
Magnetic analysis
Magnetic equivalent circuit (MEC)
Magnetic flux
Mathematical models
Nonlinear equations
Nonlinearity
permeance
reluctance
Saturation magnetization
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Summary:The magnetic equivalent circuit (MEC) technique is a powerful analysis and design tool that combines relative accuracy with moderate computational effort. In this paper, a nodal-based MEC formulation and a mesh-based MEC formulation of a magnetic system are compared. The Newton-Raphson algorithm is used to solve the algebraic system, and to draw conclusions about the computational efficiency of the two formulations under linear and nonlinear operation. Although the two formulations exhibit similar performance under linear operating conditions, the performance of the mesh-based model is significantly better than that of the nodal-based model under nonlinear operation.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2008.2002037