Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system

Research output: Contribution to conferencePaper

Abstract

Integration of renewable energy generations requires the transmission of bulky power over long distance and HVDC transmission systems become a more preferable choice compared to conventional HVAC systems. For HVDC systems, one of the important concerns is the DC protection strategy which can significantly impact on the connected AC system performance, e.g. system frequency. The maximum loss-of-infeed for a AC network is highly dependent on the duration of the power outage, and the impacts of DC fault protection arrangements which result in different speed of power restoration on the connected AC system, on the system frequency, have not been properly understood. Different DC protection arrangements using DC disconnectors, fast and slow DC circuit breakers on frequency response of the connected AC networks are investigated. A 3-terminal meshed HVDC system is studied to demonstrate system behaviour during DC faults.
LanguageEnglish
Pages1-6
Number of pages6
Publication statusAccepted/In press - 14 Feb 2018
EventThe 9th International Conference on Power Electronics, Machines and Drives - Liverpool, United Kingdom
Duration: 17 Apr 201819 Apr 2018

Conference

ConferenceThe 9th International Conference on Power Electronics, Machines and Drives
CountryUnited Kingdom
CityLiverpool
Period17/04/1819/04/18

Fingerprint

Frequency response
Electric circuit breakers
Outages
Restoration
HVAC

Keywords

  • AC-DC grids
  • AC frequency response
  • DC fault protection

Cite this

Zhou, D., Rahman, M. H., Xu, L., & Wang, Y. (Accepted/In press). Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system. 1-6. Paper presented at The 9th International Conference on Power Electronics, Machines and Drives, Liverpool, United Kingdom.
Zhou, D. ; Rahman, M. H. ; Xu, L. ; Wang, Y. / Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system. Paper presented at The 9th International Conference on Power Electronics, Machines and Drives, Liverpool, United Kingdom.6 p.
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abstract = "Integration of renewable energy generations requires the transmission of bulky power over long distance and HVDC transmission systems become a more preferable choice compared to conventional HVAC systems. For HVDC systems, one of the important concerns is the DC protection strategy which can significantly impact on the connected AC system performance, e.g. system frequency. The maximum loss-of-infeed for a AC network is highly dependent on the duration of the power outage, and the impacts of DC fault protection arrangements which result in different speed of power restoration on the connected AC system, on the system frequency, have not been properly understood. Different DC protection arrangements using DC disconnectors, fast and slow DC circuit breakers on frequency response of the connected AC networks are investigated. A 3-terminal meshed HVDC system is studied to demonstrate system behaviour during DC faults.",
keywords = "AC-DC grids, AC frequency response, DC fault protection",
author = "D. Zhou and Rahman, {M. H.} and L. Xu and Y. Wang",
year = "2018",
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Zhou, D, Rahman, MH, Xu, L & Wang, Y 2018, 'Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system' Paper presented at The 9th International Conference on Power Electronics, Machines and Drives, Liverpool, United Kingdom, 17/04/18 - 19/04/18, pp. 1-6.

Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system. / Zhou, D.; Rahman, M. H.; Xu, L.; Wang, Y.

2018. 1-6 Paper presented at The 9th International Conference on Power Electronics, Machines and Drives, Liverpool, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system

AU - Zhou, D.

AU - Rahman, M. H.

AU - Xu, L.

AU - Wang, Y.

PY - 2018/2/14

Y1 - 2018/2/14

N2 - Integration of renewable energy generations requires the transmission of bulky power over long distance and HVDC transmission systems become a more preferable choice compared to conventional HVAC systems. For HVDC systems, one of the important concerns is the DC protection strategy which can significantly impact on the connected AC system performance, e.g. system frequency. The maximum loss-of-infeed for a AC network is highly dependent on the duration of the power outage, and the impacts of DC fault protection arrangements which result in different speed of power restoration on the connected AC system, on the system frequency, have not been properly understood. Different DC protection arrangements using DC disconnectors, fast and slow DC circuit breakers on frequency response of the connected AC networks are investigated. A 3-terminal meshed HVDC system is studied to demonstrate system behaviour during DC faults.

AB - Integration of renewable energy generations requires the transmission of bulky power over long distance and HVDC transmission systems become a more preferable choice compared to conventional HVAC systems. For HVDC systems, one of the important concerns is the DC protection strategy which can significantly impact on the connected AC system performance, e.g. system frequency. The maximum loss-of-infeed for a AC network is highly dependent on the duration of the power outage, and the impacts of DC fault protection arrangements which result in different speed of power restoration on the connected AC system, on the system frequency, have not been properly understood. Different DC protection arrangements using DC disconnectors, fast and slow DC circuit breakers on frequency response of the connected AC networks are investigated. A 3-terminal meshed HVDC system is studied to demonstrate system behaviour during DC faults.

KW - AC-DC grids

KW - AC frequency response

KW - DC fault protection

UR - https://events.theiet.org/pemd/

M3 - Paper

SP - 1

EP - 6

ER -

Zhou D, Rahman MH, Xu L, Wang Y. Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system. 2018. Paper presented at The 9th International Conference on Power Electronics, Machines and Drives, Liverpool, United Kingdom.