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Optimal Positioning of Superconducting FaultCurrent Limiter in Smart Grid

S.Jose Infant Puvani*

Assistant Professor, Department of Electrical and Electronics Engineering, KPR Institute of Engineering and Technology, Coimbatore, India.

Periodicity:November - January'2015
DOI : https://doi.org/10.26634/jic.3.1.3422

Abstract

With the increase of electricity demand and change of concerning environment, the capabilities of renewable energy generation systems are being expanded. Renewable energy sources are considered as clean and prospective energy sources of the future world. The combination of AC and DC distribution grid is also considered for the efficient connection of renewable power resources. In this case, one of the critical problems due to these integrations is the excessive increase in the fault current. Inorder to protect this smart grid from increasing fault current, a Superconducting Fault Current Limiter (SFCL) could be applied, which has negligible power loss during steady state and capability to limit initial fault currents effectively. This paper research presents, optimal positioning of the SFCL and its effects on reducing fault current in a smartgrid having AC and DC microgrid. The power system was implemented with an AC microgrid having a wind farm with Doubly Fed Induction Generator (DFIG) which is cost effective and improves the power quality, a low voltage DC grid connected with photovoltaic farm. Fault analysis was performed for the symmetrical faults with different SFCL arrangements. The optimal position of SFCL in the smart grid, which could limit fault currents with no negative effect to Distributed Generation (DG) sources and with minimized cost is found to be the integration point of each DG sources in the AC and DC microgrid.

Keywords

Distributed Generation (DG) Sources, Fault Current, Microgrid, Protection Devices, Smart Grid, Superconducting Fault Current Limiter, Doubly Fed Induction Generator (DFIG).

How to Cite this Article?

Puvani, S.J.I. (2015). Optimal Positioning of Superconducting Fault Current Limiter in Smart Grid. i-manager’s Journal on Instrumentation and Control Engineering, 3(1), 23-29. https://doi.org/10.26634/jic.3.1.3422

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