Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25350
Title: Instantaneous power balance analysis in finite-element method of transient magnetic field and circuit coupled computation
Authors: Fu, WN 
Ho, SL 
Keywords: Circuit coupling
Eddy-current
Equivalent circuit
Finite-element method (FEM)
Loss
Magnetic field
Numerical method
Power balance
Time domain
Transient
Issue Date: 2013
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2013, v. 49, no. 5, 6514735, p. 1561-1564 How to cite?
Journal: IEEE transactions on magnetics 
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.
URI: http://hdl.handle.net/10397/25350
ISSN: 0018-9464
EISSN: 1941-0069
DOI: 10.1109/TMAG.2013.2240378
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

4
Last Week
0
Last month
0
Citations as of Sep 11, 2017

WEB OF SCIENCETM
Citations

4
Last Week
0
Last month
0
Citations as of Sep 16, 2017

Page view(s)

45
Last Week
0
Last month
Checked on Sep 17, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.