Abstract

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PERFORMANCE ANALYSIS OF SMART GRID WITH SUPER CONDUCTING FAULT CURRENT LIMITER IN A SOLAR AND WIND BASED MICROGRID

Avinash Chougule, Dr. S. G. Kanade


Today due to competitiveness in the energy market, increasing number of power generators are being interconnected with the main grid. This in turn increases the level of fault current in the system. In general, circuit breakers used today have delay of about two to three typical cycles in responding to the trip command from the relay. This paper describes resistive Super Conducting Fault Current Limiter (SFCL) as an innovative equipment which has the capability to reduce this fault current level in its first cycle of fault current. The model is implemented using MATLAB SimPowerSystem and uses a resistive type SFCL which act like a controllable resistor. All line faults have been simulated at different locations in the test system consisting of a 10MVA wind power system and 50kW solar power system and the effect of the SFCL and its location on the fault current at point of common coupling is observed. The paper concludes with results showing the optimal connection for SFCL in the test system.