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

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

doi:10.1049/joe.2018.9365

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
Pages (from-to)	5129-5133
Number of pages	5
Journal	The Journal of Engineering
Volume	2019
Issue number	18
Early online date	15 Mar 2019
DOIs	https://doi.org/10.1049/joe.2018.9365
Publication status	Published - 31 Jul 2019
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

Keywords

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

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10.1049/joe.2018.9365Licence: CC BY 3.0

Makkieh-etal-JOE2019-Investigation-of-different-system-earthing-schemes-for-protection-of-low-voltage-DC-microgridsFinal published version, 2.36 MBLicence: CC BY 3.0

Cite this

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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.",

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

author = "Ahmad Makkieh and Abdullah Emhemed and Dong Wang and Adria Junyent-Ferre and Graeme Burt",

year = "2019",

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doi = "10.1049/joe.2018.9365",

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T1 - Investigation of different system earthing schemes for protection of low voltage DC microgrids

AU - Makkieh, Ahmad

AU - Emhemed, Abdullah

AU - Wang, Dong

AU - Junyent-Ferre, Adria

AU - Burt, Graeme

PY - 2019/7/31

Y1 - 2019/7/31

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

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DO - 10.1049/joe.2018.9365

M3 - Article

SN - 2051-3305

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

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

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Keywords

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