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论文类型：期刊论文

发表时间：2016-12-01

发表刊物：CANADIAN JOURNAL OF ELECTRICAL AND COMPUTER ENGINEERING-REVUE CANADIENNE DE GENIE ELECTRIQUE ET INFORMATIQUE

收录刊物：SCIE、EI、Scopus

卷号：39

期号：1

页面范围：59-65

ISSN号：0840-8688

关键字：Core temperature; finite-element model; single ethylene propylene rubber (EPR) cable; thermal conductivity; thermal equivalent circuit model

摘要：The core temperature measurement of 0.6/1-kV low-voltage ethylene propylene rubber-insulated single-core power cable based on thermal conductivity is proposed in this paper. First, the cable temperature is measured by considering a variety of environmental temperatures and load currents. Second, in order to improve the computational accuracy, a 3-D finite-element model is established and simulated using the ANSYS software. Finally, according to the difference between the experimental and simulation results, the thermal conductivity of the insulation layer and sheath layer is altered. After modification of the thermal conductivity, the temperature of the simulation can follow the metrical data better. Simulation results verify that the proposed method is able to estimate the core temperature with high sensitivity.