Quantification of transient fault let-through energy within a faulted LVDC distribution network

Dong Wang, Abdullah Emhemed, Kyle Smith, Graeme Burt, Jawwad Zafar, Ali Kazerooni, Anthony Donoghue

Research output: Contribution to conferencePaper

25 Downloads (Pure)

Abstract

LV direct current (LVDC) distribution systems have recently been considered as an alternative approach to electrical distribution system infrastructure as they possess the flexibility and controllability that is required to facilitate the integration of low carbon technologies (LCT). For example, energising existing LV AC cables by DC with higher voltages (>0.4kV) can potentially release additional power capacity on LV cables and reduce the associated thermal losses. However, converting existing AC cables for DC operation may change the cable performance under faulted conditions, resulting in a change to its lifetime. The nature of future LVDC systems can be capacitive due to the characteristic of particular customers such as battery energy storage systems (BESS) and electric vehicles (EVs). A short-circuit fault on the DC side may lead to a discharge/release of significant transient energy in LV cables which was never anticipated under traditional LVAC networks. This paper quantifies the transient DC fault let-through energy which can be imposed on existing AC cables used for DC operation, and draws conclusions on the potential impact of such phenomena on the cable performance. A detailed model of an LVDC test network with three-core LV cables is developed using PSCAD/EMTDC for simulation studies.
Original languageEnglish
Number of pages6
Publication statusPublished - 5 Feb 2019
EventThe 15th IET International Conference on AC and DC Power Transmission - DoubleTree by Hilton Hotel , Coventry, United Kingdom
Duration: 5 Feb 20197 Feb 2019
Conference number: 15
https://events.theiet.org/acdc/

Conference

ConferenceThe 15th IET International Conference on AC and DC Power Transmission
Abbreviated titleIET ACDC2019
CountryUnited Kingdom
CityCoventry
Period5/02/197/02/19
Internet address

Fingerprint

Electric power distribution
Cables
Cable cores
Electric vehicles
Controllability
Short circuit currents
Energy storage
Carbon
Electric potential

Keywords

  • LVDC
  • transient fault current
  • ault let-through energy
  • cable lifetime

Cite this

Wang, D., Emhemed, A., Smith, K., Burt, G., Zafar, J., Kazerooni, A., & Donoghue, A. (2019). Quantification of transient fault let-through energy within a faulted LVDC distribution network. Paper presented at The 15th IET International Conference on AC and DC Power Transmission, Coventry, United Kingdom.
Wang, Dong ; Emhemed, Abdullah ; Smith, Kyle ; Burt, Graeme ; Zafar, Jawwad ; Kazerooni, Ali ; Donoghue, Anthony. / Quantification of transient fault let-through energy within a faulted LVDC distribution network. Paper presented at The 15th IET International Conference on AC and DC Power Transmission, Coventry, United Kingdom.6 p.
@conference{b8d3b98c3e824abcb9ed284a46e5fdc3,
title = "Quantification of transient fault let-through energy within a faulted LVDC distribution network",
abstract = "LV direct current (LVDC) distribution systems have recently been considered as an alternative approach to electrical distribution system infrastructure as they possess the flexibility and controllability that is required to facilitate the integration of low carbon technologies (LCT). For example, energising existing LV AC cables by DC with higher voltages (>0.4kV) can potentially release additional power capacity on LV cables and reduce the associated thermal losses. However, converting existing AC cables for DC operation may change the cable performance under faulted conditions, resulting in a change to its lifetime. The nature of future LVDC systems can be capacitive due to the characteristic of particular customers such as battery energy storage systems (BESS) and electric vehicles (EVs). A short-circuit fault on the DC side may lead to a discharge/release of significant transient energy in LV cables which was never anticipated under traditional LVAC networks. This paper quantifies the transient DC fault let-through energy which can be imposed on existing AC cables used for DC operation, and draws conclusions on the potential impact of such phenomena on the cable performance. A detailed model of an LVDC test network with three-core LV cables is developed using PSCAD/EMTDC for simulation studies.",
keywords = "LVDC, transient fault current, ault let-through energy, cable lifetime",
author = "Dong Wang and Abdullah Emhemed and Kyle Smith and Graeme Burt and Jawwad Zafar and Ali Kazerooni and Anthony Donoghue",
year = "2019",
month = "2",
day = "5",
language = "English",
note = "The 15th IET International Conference on AC and DC Power Transmission, IET ACDC2019 ; Conference date: 05-02-2019 Through 07-02-2019",
url = "https://events.theiet.org/acdc/",

}

Wang, D, Emhemed, A, Smith, K, Burt, G, Zafar, J, Kazerooni, A & Donoghue, A 2019, 'Quantification of transient fault let-through energy within a faulted LVDC distribution network' Paper presented at The 15th IET International Conference on AC and DC Power Transmission, Coventry, United Kingdom, 5/02/19 - 7/02/19, .

Quantification of transient fault let-through energy within a faulted LVDC distribution network. / Wang, Dong; Emhemed, Abdullah; Smith, Kyle; Burt, Graeme; Zafar, Jawwad; Kazerooni, Ali; Donoghue, Anthony.

2019. Paper presented at The 15th IET International Conference on AC and DC Power Transmission, Coventry, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Quantification of transient fault let-through energy within a faulted LVDC distribution network

AU - Wang, Dong

AU - Emhemed, Abdullah

AU - Smith, Kyle

AU - Burt, Graeme

AU - Zafar, Jawwad

AU - Kazerooni, Ali

AU - Donoghue, Anthony

PY - 2019/2/5

Y1 - 2019/2/5

N2 - LV direct current (LVDC) distribution systems have recently been considered as an alternative approach to electrical distribution system infrastructure as they possess the flexibility and controllability that is required to facilitate the integration of low carbon technologies (LCT). For example, energising existing LV AC cables by DC with higher voltages (>0.4kV) can potentially release additional power capacity on LV cables and reduce the associated thermal losses. However, converting existing AC cables for DC operation may change the cable performance under faulted conditions, resulting in a change to its lifetime. The nature of future LVDC systems can be capacitive due to the characteristic of particular customers such as battery energy storage systems (BESS) and electric vehicles (EVs). A short-circuit fault on the DC side may lead to a discharge/release of significant transient energy in LV cables which was never anticipated under traditional LVAC networks. This paper quantifies the transient DC fault let-through energy which can be imposed on existing AC cables used for DC operation, and draws conclusions on the potential impact of such phenomena on the cable performance. A detailed model of an LVDC test network with three-core LV cables is developed using PSCAD/EMTDC for simulation studies.

AB - LV direct current (LVDC) distribution systems have recently been considered as an alternative approach to electrical distribution system infrastructure as they possess the flexibility and controllability that is required to facilitate the integration of low carbon technologies (LCT). For example, energising existing LV AC cables by DC with higher voltages (>0.4kV) can potentially release additional power capacity on LV cables and reduce the associated thermal losses. However, converting existing AC cables for DC operation may change the cable performance under faulted conditions, resulting in a change to its lifetime. The nature of future LVDC systems can be capacitive due to the characteristic of particular customers such as battery energy storage systems (BESS) and electric vehicles (EVs). A short-circuit fault on the DC side may lead to a discharge/release of significant transient energy in LV cables which was never anticipated under traditional LVAC networks. This paper quantifies the transient DC fault let-through energy which can be imposed on existing AC cables used for DC operation, and draws conclusions on the potential impact of such phenomena on the cable performance. A detailed model of an LVDC test network with three-core LV cables is developed using PSCAD/EMTDC for simulation studies.

KW - LVDC

KW - transient fault current

KW - ault let-through energy

KW - cable lifetime

UR - https://events2.theiet.org/acdc/register.cfm?utm_source=redirect&utm_medium=legacyredirects&utm_campaign=2019relaunch&origin=communities-listing

M3 - Paper

ER -

Wang D, Emhemed A, Smith K, Burt G, Zafar J, Kazerooni A et al. Quantification of transient fault let-through energy within a faulted LVDC distribution network. 2019. Paper presented at The 15th IET International Conference on AC and DC Power Transmission, Coventry, United Kingdom.