Investigation of different system earthing schemes for protection of low voltage DC microgrids

Ahmad Makkieh; Abdullah Emhemed; Dong Wang; Adria Junyent-Ferre; Graeme Burt

Investigation of different system earthing schemes for protection of low voltage DC microgrids

Ahmad Makkieh, Abdullah Emhemed, Dong Wang, Adria Junyent-Ferre, Graeme Burt

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Abstract

DC microgrids are expected to play an important role in maximising the benefits of distributed energy resources in future low carbon smart power systems. One of the remaining complex challenges is the requirement for effective DC protection solutions. The advancement of DC protection is hindered by the lack of good understanding and development of reliable and effective earthing schemes which can enable safe and secure operation of DC microgrids in both on-grid and off-grid modes. Therefore, this paper discusses different DC microgrid earthing opportunities, and comprehensively evaluates through detailed simulation studies the influence of different earthing methods on the fault behaviour of DC microgrid. A transient model of an active DC microgrid is developed in PSCAD/EMTDC and used for the paper studies.

Original language	English
Number of pages	6
Publication status	Published - 27 Sept 2018
Event	The 7th International Conference on Renewable Power Generation (RPG2018) - DTU, Lyngby, Copenhagen, Denmark Duration: 26 Sept 2018 → 27 Sept 2018 https://events.theiet.org/rpg/index.cfm

Conference

Conference	The 7th International Conference on Renewable Power Generation (RPG2018)
Country/Territory	Denmark
City	Copenhagen
Period	26/09/18 → 27/09/18
Internet address	https://events.theiet.org/rpg/index.cfm

Keywords

DC earthing schemes
distribution network
fault current,
low voltage DC microgrid
protection for safety

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title = "Investigation of different system earthing schemes for protection of low voltage DC microgrids",

abstract = "DC microgrids are expected to play an important role in maximising the benefits of distributed energy resources in future low carbon smart power systems. One of the remaining complex challenges is the requirement for effective DC protection solutions. The advancement of DC protection is hindered by the lack of good understanding and development of reliable and effective earthing schemes which can enable safe and secure operation of DC microgrids in both on-grid and off-grid modes. Therefore, this paper discusses different DC microgrid earthing opportunities, and comprehensively evaluates through detailed simulation studies the influence of different earthing methods on the fault behaviour of DC microgrid. A transient model of an active DC microgrid is developed in PSCAD/EMTDC and used for the paper studies.",

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AU - Makkieh, Ahmad

AU - Emhemed, Abdullah

AU - Wang, Dong

AU - Junyent-Ferre, Adria

AU - Burt, Graeme

N1 - This paper is a postprint of a paper submitted and accepted to The 7th International Conference on Renewable Power Generation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

PY - 2018/9/27

Y1 - 2018/9/27

N2 - DC microgrids are expected to play an important role in maximising the benefits of distributed energy resources in future low carbon smart power systems. One of the remaining complex challenges is the requirement for effective DC protection solutions. The advancement of DC protection is hindered by the lack of good understanding and development of reliable and effective earthing schemes which can enable safe and secure operation of DC microgrids in both on-grid and off-grid modes. Therefore, this paper discusses different DC microgrid earthing opportunities, and comprehensively evaluates through detailed simulation studies the influence of different earthing methods on the fault behaviour of DC microgrid. A transient model of an active DC microgrid is developed in PSCAD/EMTDC and used for the paper studies.

AB - DC microgrids are expected to play an important role in maximising the benefits of distributed energy resources in future low carbon smart power systems. One of the remaining complex challenges is the requirement for effective DC protection solutions. The advancement of DC protection is hindered by the lack of good understanding and development of reliable and effective earthing schemes which can enable safe and secure operation of DC microgrids in both on-grid and off-grid modes. Therefore, this paper discusses different DC microgrid earthing opportunities, and comprehensively evaluates through detailed simulation studies the influence of different earthing methods on the fault behaviour of DC microgrid. A transient model of an active DC microgrid is developed in PSCAD/EMTDC and used for the paper studies.

KW - DC earthing schemes

KW - distribution network

KW - fault current,

KW - low voltage DC microgrid

KW - protection for safety

UR - https://events.theiet.org/rpg/index.cfm

M3 - Paper

T2 - The 7th International Conference on Renewable Power Generation (RPG2018)

Y2 - 26 September 2018 through 27 September 2018

ER -

Investigation of different system earthing schemes for protection of low voltage DC microgrids

Abstract

Conference

Keywords

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