New Differential Protection Method for Multiterminal HVDC Cable Networks

Ground faults in electrical power systems represent more than 90% of total faults. Their detection, location, and elimination are essential and must be carried out in a precise way to allow multiterminal high-voltage direct current (HVDC) cable networks to operate in stable conditions by removing on...

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Main Authors: Ricardo Granizo Arrabé, Carlos A. Platero, Fernando Álvarez Gómez, Emilio Rebollo López
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/11/12/3387
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author Ricardo Granizo Arrabé
Carlos A. Platero
Fernando Álvarez Gómez
Emilio Rebollo López
author_facet Ricardo Granizo Arrabé
Carlos A. Platero
Fernando Álvarez Gómez
Emilio Rebollo López
author_sort Ricardo Granizo Arrabé
collection DOAJ
description Ground faults in electrical power systems represent more than 90% of total faults. Their detection, location, and elimination are essential and must be carried out in a precise way to allow multiterminal high-voltage direct current (HVDC) cable networks to operate in stable conditions by removing only the faulty cable from service. This paper presents a new differential protection method based on the measurement of currents at both ends of the shields of power cables. This new method is cheaper and easier to set in operation compared to other protection methods that measure currents circulating in the active conductors. The values of such intensities and their polarities were evaluated to know which cable had a ground fault in a multiterminal HVDC cable network. The method was successfully validated by computer simulations, and experimental results were successfully obtained.
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spelling doaj.art-994fecece77147edaa0a5845c5294f122022-12-22T04:20:13ZengMDPI AGEnergies1996-10732018-12-011112338710.3390/en11123387en11123387New Differential Protection Method for Multiterminal HVDC Cable NetworksRicardo Granizo Arrabé0Carlos A. Platero1Fernando Álvarez Gómez2Emilio Rebollo López3Department of Electrical Engineering, ETS Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutierrez Abascal, 2, 28006 Madrid, SpainDepartment of Electrical Engineering, ETS Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutierrez Abascal, 2, 28006 Madrid, SpainDepartment of Electrical Engineering, ETS Ingeniería y Diseño Industrial, Universidad Politécnica de Madrid, C/Ronda de Valencia, 3, 28012 Madrid, SpainDepartment of Electrical Engineering, ETS Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutierrez Abascal, 2, 28006 Madrid, SpainGround faults in electrical power systems represent more than 90% of total faults. Their detection, location, and elimination are essential and must be carried out in a precise way to allow multiterminal high-voltage direct current (HVDC) cable networks to operate in stable conditions by removing only the faulty cable from service. This paper presents a new differential protection method based on the measurement of currents at both ends of the shields of power cables. This new method is cheaper and easier to set in operation compared to other protection methods that measure currents circulating in the active conductors. The values of such intensities and their polarities were evaluated to know which cable had a ground fault in a multiterminal HVDC cable network. The method was successfully validated by computer simulations, and experimental results were successfully obtained.https://www.mdpi.com/1996-1073/11/12/3387protection relaysfault locationground faultsHVDC
spellingShingle Ricardo Granizo Arrabé
Carlos A. Platero
Fernando Álvarez Gómez
Emilio Rebollo López
New Differential Protection Method for Multiterminal HVDC Cable Networks
Energies
protection relays
fault location
ground faults
HVDC
title New Differential Protection Method for Multiterminal HVDC Cable Networks
title_full New Differential Protection Method for Multiterminal HVDC Cable Networks
title_fullStr New Differential Protection Method for Multiterminal HVDC Cable Networks
title_full_unstemmed New Differential Protection Method for Multiterminal HVDC Cable Networks
title_short New Differential Protection Method for Multiterminal HVDC Cable Networks
title_sort new differential protection method for multiterminal hvdc cable networks
topic protection relays
fault location
ground faults
HVDC
url https://www.mdpi.com/1996-1073/11/12/3387
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