Optimal Placement of Resistive Superconducting Fault Current Limiters in Microgrid
The basic feature of the future smart grid is redistribution of the conventional grid into a number of smaller grids recognized as microgrid. The extensive incorporation of distributed energy resources (DER) with conventional power grids results in the rise of fault current by several times during the occurrence of fault or any abnormality which has to be solved for the successful execution of microgrid. One of the most important utilization of superconducting fault current limiters for upcoming microgrid is related to the curtailment of abnormal rise in fault current and the viable position in microgrid. This paper analyzes the implementation of resistive superconducting fault current limiter (RSFCL) for designed microgrid system, which is an extension of the current power grid. RSFCL model of resistive type has been modeled in Simulink and its performance has been studied at various positions in the designed system by integrating a wind power plant of 10 MVA capacity with traditional power plant, to minimize the fault current in the microgrid which is caused by the occurrence of different types of faults at various locations in the grid. Consequently, the viable location of RSFCL which has no adverse effect on wind farm and is also cost-effective has been analyzed for all types of faults at discrete positions in the microgrid.
KeywordsMicrogrid Smart grid Resistive superconducting fault current limiters Fault current
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