Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable

The calculation of the continuous allowable current of an underground cable is determined by various characteristics. To calculate the allowable current in cables with alternating magnetic fields such as AC, special phenomena such as the proximity effect and skin effect must be applied. However, the...

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Main Authors: Kyu-hoon Park, Il Kwon, Bang-wook Lee
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/19/6431
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author Kyu-hoon Park
Il Kwon
Bang-wook Lee
author_facet Kyu-hoon Park
Il Kwon
Bang-wook Lee
author_sort Kyu-hoon Park
collection DOAJ
description The calculation of the continuous allowable current of an underground cable is determined by various characteristics. To calculate the allowable current in cables with alternating magnetic fields such as AC, special phenomena such as the proximity effect and skin effect must be applied. However, there are no standards or research related to the calculation of the continuous allowable current of a DC power cable that does not have an alternating magnetic field. In this paper, a quantitative DC cable continuous allowable current calculation formula of direct burial laying was derived by applying the existing AC cable continuous allowable current calculation method to the DC system. We developed a calculation tool that can calculate the continuous allowable current of DC cables using the derived formula. Assuming the cable conditions (cable specification, laying conditions, soil characteristics, arrangement, and number of strands, etc.), a continuous allowable current simulation of DC cables was performed. In addition, the level of contribution to the continuous allowable current value was analyzed by classifying the parameter categories into major and minor factors in the order of influence on the allowable current among the determined calculated parameters. As a result, the effectiveness of the DC cable continuous allowable current calculation tool derived by performing the allowable current calculation simulation was evaluated, and the allowable current calculation method of the HVDC cable was established.
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spelling doaj.art-e66380771fbf47e98a3aaf15a54b86ab2023-11-22T16:04:14ZengMDPI AGEnergies1996-10732021-10-011419643110.3390/en14196431Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground CableKyu-hoon Park0Il Kwon1Bang-wook Lee2HVDC Electric Power Laboratory, Department of Electronic Engineering, Hanyang University, Ansan 15588, KoreaHVDC Electric Power Laboratory, Department of Electronic Engineering, Hanyang University, Ansan 15588, KoreaHVDC Electric Power Laboratory, Department of Electronic Engineering, Hanyang University, Ansan 15588, KoreaThe calculation of the continuous allowable current of an underground cable is determined by various characteristics. To calculate the allowable current in cables with alternating magnetic fields such as AC, special phenomena such as the proximity effect and skin effect must be applied. However, there are no standards or research related to the calculation of the continuous allowable current of a DC power cable that does not have an alternating magnetic field. In this paper, a quantitative DC cable continuous allowable current calculation formula of direct burial laying was derived by applying the existing AC cable continuous allowable current calculation method to the DC system. We developed a calculation tool that can calculate the continuous allowable current of DC cables using the derived formula. Assuming the cable conditions (cable specification, laying conditions, soil characteristics, arrangement, and number of strands, etc.), a continuous allowable current simulation of DC cables was performed. In addition, the level of contribution to the continuous allowable current value was analyzed by classifying the parameter categories into major and minor factors in the order of influence on the allowable current among the determined calculated parameters. As a result, the effectiveness of the DC cable continuous allowable current calculation tool derived by performing the allowable current calculation simulation was evaluated, and the allowable current calculation method of the HVDC cable was established.https://www.mdpi.com/1996-1073/14/19/6431allowable currentHVDC underground cabledirect burial layingthermal resistance
spellingShingle Kyu-hoon Park
Il Kwon
Bang-wook Lee
Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
Energies
allowable current
HVDC underground cable
direct burial laying
thermal resistance
title Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
title_full Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
title_fullStr Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
title_full_unstemmed Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
title_short Calculation Method of Allowable Continuous Current for Direct Burial Laying HVDC Underground Cable
title_sort calculation method of allowable continuous current for direct burial laying hvdc underground cable
topic allowable current
HVDC underground cable
direct burial laying
thermal resistance
url https://www.mdpi.com/1996-1073/14/19/6431
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AT ilkwon calculationmethodofallowablecontinuouscurrentfordirectburiallayinghvdcundergroundcable
AT bangwooklee calculationmethodofallowablecontinuouscurrentfordirectburiallayinghvdcundergroundcable