Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines

Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines

Flexible direct current (DC) transmission network technology is an effective method for large capacity clean energy access to power grids, but the DC short-circuit fault detection for it is a difficult problem. In this paper, the pole-to-ground fault transient characteristics in a multi-terminal DC...

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Bibliographic Details
Main Authors: Shimin Xue, Jie Lian, Jinlong Qi, Boyang Fan
Format: Article
Language:English
Published: MDPI AG 2017-07-01
Series:Energies
Subjects:
flexible DC transmission network
overhead transmission line
pole-to-ground fault
fault characteristic
protection scheme
Online Access:https://www.mdpi.com/1996-1073/10/7/1059
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spelling doaj-0ff3d623048d4eb9ae23606b401dbe8f2020-11-25T00:44:52ZengMDPI AGEnergies1996-10732017-07-01107105910.3390/en10071059en10071059Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission LinesShimin Xue0Jie Lian1Jinlong Qi2Boyang Fan3Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, ChinaFlexible direct current (DC) transmission network technology is an effective method for large capacity clean energy access to power grids, but the DC short-circuit fault detection for it is a difficult problem. In this paper, the pole-to-ground fault transient characteristics in a multi-terminal DC power grid, based on overhead transmission lines and DC circuit breakers, are analyzed firstly. Then, a fast protection scheme is proposed according to the fault transient characteristics. Only local information is utilized for fault detection and location in the proposed scheme. Moreover, the scheme is verified to have the advantages of fast action speed, high reliability and the ability to resist the transition resistance. A four terminal DC power grid model based on actual engineering parameters is established in PSCAD/EMTDC, and the validity of the protection scheme under different fault conditions is verified by simulation results.https://www.mdpi.com/1996-1073/10/7/1059flexible DC transmission networkoverhead transmission linepole-to-ground faultfault characteristicprotection scheme
collection DOAJ
language English
format Article
sources DOAJ
author Shimin Xue
Jie Lian
Jinlong Qi
Boyang Fan
spellingShingle Shimin Xue
Jie Lian
Jinlong Qi
Boyang Fan
Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines
Energies
flexible DC transmission network
overhead transmission line
pole-to-ground fault
fault characteristic
protection scheme
author_facet Shimin Xue
Jie Lian
Jinlong Qi
Boyang Fan
author_sort Shimin Xue
title Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines
title_short Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines
title_full Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines
title_fullStr Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines
title_full_unstemmed Pole-to-Ground Fault Analysis and Fast Protection Scheme for HVDC Based on Overhead Transmission Lines
title_sort pole-to-ground fault analysis and fast protection scheme for hvdc based on overhead transmission lines
publisher MDPI AG
series Energies
issn 1996-1073
publishDate 2017-07-01
description Flexible direct current (DC) transmission network technology is an effective method for large capacity clean energy access to power grids, but the DC short-circuit fault detection for it is a difficult problem. In this paper, the pole-to-ground fault transient characteristics in a multi-terminal DC power grid, based on overhead transmission lines and DC circuit breakers, are analyzed firstly. Then, a fast protection scheme is proposed according to the fault transient characteristics. Only local information is utilized for fault detection and location in the proposed scheme. Moreover, the scheme is verified to have the advantages of fast action speed, high reliability and the ability to resist the transition resistance. A four terminal DC power grid model based on actual engineering parameters is established in PSCAD/EMTDC, and the validity of the protection scheme under different fault conditions is verified by simulation results.
topic flexible DC transmission network
overhead transmission line
pole-to-ground fault
fault characteristic
protection scheme
url https://www.mdpi.com/1996-1073/10/7/1059
work_keys_str_mv AT shiminxue poletogroundfaultanalysisandfastprotectionschemeforhvdcbasedonoverheadtransmissionlines
AT jielian poletogroundfaultanalysisandfastprotectionschemeforhvdcbasedonoverheadtransmissionlines
AT jinlongqi poletogroundfaultanalysisandfastprotectionschemeforhvdcbasedonoverheadtransmissionlines
AT boyangfan poletogroundfaultanalysisandfastprotectionschemeforhvdcbasedonoverheadtransmissionlines
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