NDLI: Thermal modeling and experimental validation of an encapsulated busbars system

Content Provider	IEEE Xplore Digital Library
Author	Popa, I.C. Dolan, A.-I. Ghindeanu, D. Boltasu, C.
Copyright Year	2014
Description	Author affiliation: Fac. of Electr. Eng., Univ. of Craiova, Craiova, Romania (Popa, I.C.; Dolan, A.-I.) \|\| High Power Lab., ICMET, Craiova, Romania (Ghindeanu, D.; Boltasu, C.)
Abstract	In this paper, we propose an approach for the magnetic and thermal modeling of an encapsulated busbars system for high voltage using QuickField software. This paper proposes a numerical model developed by coupling of the magnetic field problem with the stationary and transient heat field problems for the geometry of a single-phase execution busbars system. The coupling of problems is realized by importing specific losses from the magnetic field problem as heat sources for thermal field problem. The magnetic field problem is also coupled to the electrical circuit. The shields are short-circuited at both ends and they are connected to the ground. For this constructive solution, in the shields occur induced currents, approximately equals to those of conductors. Due to the shielding effect, the magnetic field is practically zero outside of shield and therefore the electrodynamic forces do not occur between phases. In the model it was taken into account the variation of electrical conductivity with the temperature. The thermal model has been validated by experiment. The global coefficient of heat transfer by convection and radiation used in thermal model was estimated using the power losses computed by magnetic model. There is a good agreement between numerical and experimental temperature values. The presented model can be used for analysis, design and optimization of three-phase busbars system in single phase execution.
Starting Page	1
Ending Page	4
File Size	272400
Page Count	4
File Format	PDF
ISBN	9781479958160
e-ISBN	9781479958177
DOI	10.1109/SIELA.2014.6871884
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-29
Publisher Place	Bulgaria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic noise Conductors Encapsulated busbars system Numerical models Coupled magnetothermal analysis Mathematical model Magnetic fields Heat transfer Magnetic shielding
Content Type	Text
Resource Type	Article

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