NDLI: Instantaneous Power Balance Analysis in Finite-Element Method of Transient Magnetic Field and Circuit Coupled Computation

Content Provider	IEEE Xplore Digital Library
Author	Fu, W.N. Ho, S. L.
Copyright Year	1965
Abstract	An instantaneous power balance analysis of time-domain finite-element method for transient 2-dimensional (2-D) magnetic field and electric circuit coupled computation is presented. Based on the principle of instantaneous power balance and the technique of matrix analysis, formulations for the computation of instantaneous reactive power, active power and eddy-current loss in solid conductors are put forward. The merit of the proposed algorithm is that the integration method for the loss computation is exactly the same as that for the system equations. Therefore, additional numerical errors arising from the integration in loss computation can be avoided. It clarifies the methods for eddy-current loss computation in solid conductors. The precise identification of instantaneous real power and reactive power is expected to pave the way for a new and accurate approach to extract the instantaneous ac resistances and inductances of the equivalent electric circuit. The concept of instantaneous power balance can also be used for force and torque computations.
Sponsorship	IEEE Magnetics Society
Starting Page	1561
Ending Page	1564
Page Count	4
File Size	1189712
File Format	PDF
ISSN	00189464
Volume Number	49
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	transient Circuit coupling eddy-current equivalent circuit finite-element method (FEM) loss magnetic field numerical method power balance time domain
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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