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Sensing of Ground Fault in Bipolar LVDC Grid

Sabbella. V.V.S.K. Reddy1 , K. Satyanarayana2

Section:Research Paper, Product Type: Journal
Vol.6 , Issue.6 , pp.19-24, Dec-2018

Online published on Dec 31, 2018


Copyright © Sabbella. V.V.S.K. Reddy, K. Satyanarayana . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Citation :
IEEE Style Citation: Sabbella. V.V.S.K. Reddy, K. Satyanarayana, “Sensing of Ground Fault in Bipolar LVDC Grid”, International Journal of Scientific Research in Network Security and Communication, Vol.6, Issue.6, pp.19-24, 2018.

MLA Style Citation: Sabbella. V.V.S.K. Reddy, K. Satyanarayana "Sensing of Ground Fault in Bipolar LVDC Grid." International Journal of Scientific Research in Network Security and Communication 6.6 (2018): 19-24.

APA Style Citation: Sabbella. V.V.S.K. Reddy, K. Satyanarayana, (2018). Sensing of Ground Fault in Bipolar LVDC Grid. International Journal of Scientific Research in Network Security and Communication, 6(6), 19-24.

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Abstract :
The new demand for distributed energy systems (D.E.S) has emerged due to depleting natural energy reserves and for successful implementation of D.E.S, the micro-grid development with low voltage D.C (LVDC) is essential. The Best LVDC topology is bipolar. For practical application of the LVDC system, therefore, it is necessary to perform any simulation in advance by considering various conditions that can occur in an LVDC system. There are different problems in LVDC grid such as cost, security, complexity. The conventional protection schemes will not give best results in developing a secure and reliable network of LVDC. The main difficulty here is identification of ground fault and protecting the front end converter. So, in this paper a bipolar LVDC grid is modelled and ground fault is created and its impact on front end converter is observed. Finally, the ground fault is sensed by the modelled devices and front end converter is isolated on occurrence of fault in Simulink environment.

Key-Words / Index Term :
LVDC , Distributed Energy Systems, Ground Fault, Bipolar(key words)

References :
[1] European Commission, Low Voltage Directive, LVDC 2006/95/EC. European Union Directive, Brussels 2006.
[2] SFS 6000 – Low Voltage Electrical Installations and Safety at Electrical Work. National Low Voltage Standard –series. SESKO Standardization in Finland.
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[8] Nuutinen P. Inverter and Filter Implementation in an LVDC Distribution Network. Master’s thesis. Lappeenranta University of Technology, Lappeenranta 2007.
[9]Salonen P, Kaipia T, Nuutinen P, Peltoniemi P, and Partanen J, Fault Analysis of LVDC Distribution System. To be presented in WESC 2008
[10]Voutilainen V, Determining the Potential of DC Distribution. Master’s thesis. Lappeenranta University of Technology, Lappeenranta 2007.
[11] Kaipia T, Lassila L, Salonen P, Partanen J, Brenna M, Tironi E and Ubezio G, Distributed Generation in DC Distribution System. CIRED 2007. Paper 0385.
[12] C.W. Taylor and S. Lefebvre, “HVDC controls for system dynamic performance,” IEEE Trans. Power Syst., vol.6,pp,743-752,1991.

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