The excessive fault current is seriou problem to
successful implementation of micro grids.. The
superconducting fault current imiter(SPCL) is very essential
for upcoming smart grids. In this work, a resistive type SFCL
model was implemented. The developed SFCL works on
depending on impedance. SFCL model utilized for to find
impedance level of SFCL according to the fault current
limitation requirements of different smart grid system. In
addition, typical smart grid model including generation,
transmission and distribution network with dispersed energy
resource was mod-eled to determine the location and the
performance of the SFCL. As for a dispersed energy
resource, 10 MVA wind farm was con-sidered for the
simulation. Three phase faults have been simulated at
different locations in smart grid and the effect of the SFCL
and its location on the wind farm fault current was evaluated.
Conse-quently, the optimum arrangement of the SFCL
location in Smart Grid with renewable resources has been
proposed and its remark-able performance has been
Published In : IJCAT Journal Volume 3, Issue 1
Date of Publication : January 2016
Pages : 22 - 26
Tables : --
Publication Link :Fault Current Limiters for the Smart Grid
N. Vijay Chand : M.Tech Student Lenora College of Engineering- Rampachodavaram
V. Narendra Kumar : Asst. Professor Lenora College of Engineering- Rampachodavaram
superconducting fault current limiter
This paper presented a feasibility analysis of positioning of
the SFCL in rapidly changing modern power grid. A
complete power system along with a micro grid (having a
wind farm connected with the grid) was modeled and transient analysis for three-phase-to-ground faults at
different locations of the grid were performed with SFCL
installed at key locations of the grid. It has been observed
that SFCL should not be installed directly at the substation
or the branch network feeder. This placement of SFCL
results in abnormal fault current contribution from the
wind farm. Also multiple SFCLs in micro grid are
inefficient both in performance and cost. The strategic
location of SFCL in a power grid which limits all fault
currents and has no negative effect on the DG source is the
point of integration of the wind farm with the power grid.
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