Thermal Modelling and Experimental Validation for Research on Medium Voltage DC Cables

Conference paper (2018)

Authors

A. Shekhar DC systems, Energy conversion & Storage - EEMCS , The University of Texas at Austin
Xianyong Feng The University of Texas at Austin
Robert E. Hebner The University of Texas at Austin
Angelo Gattozzi The University of Texas at Austin
Shannon Strank The University of Texas at Austin
A. R. Mor DC systems, Energy conversion & Storage - EEMCS , The University of Texas at Austin
L.M. Ramirez Elizondo The University of Texas at Austin, DC systems, Energy conversion & Storage - EEMCS
P. Bauer The University of Texas at Austin, DC systems, Energy conversion & Storage - EEMCS
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
Copyright: © 2018 A. Shekhar, X. Feng, R. Hebner, A. Gattozzi, S. Strank, A. R. Mor, L.M. Ramirez Elizondo, P. Bauer
DOI: https://doi.org/10.1109/PESGM.2017.8274559
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Published Date

2018

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

The thermal behavior of medium voltage dc cables can find useful applications for efficient and capacity enhanced operation in cities as well as compact power transmission on all electric ships. Concepts such as dynamic current and voltage rating, difference in thermal proximity in ac and dc operation, pulsed load application and thermal degradation with enhanced dc voltage; all are interlaced with the crucial temperature profile of insulated conductors. This paper develops a theoretical thermal model to highlight the possibility of dynamic current rating with pulsed loads. Further, a novel idea of imposing a thermal profile on cables for dc partial discharge testing is discussed. For this purpose a heat transfer model for a segmented cable is developed and experimentally validated.