Fault Current Reduction and Control in Transmission and Distribution Lines Using Transformer Type SFCL

Abstract

Distributed generations are the renewable energy sources used to increase power generation when increasing in power consumption. These are located close to consumer in a micro grid. Interconnection of distributed generation to the grid make problems like excessive increase in fault current due to the abnormal operation, circuit breaker cannot work properly. This leads to situations where the circuit breaker needs to be modified according to each grid developments. Superconducting fault current limiters are the most suitable methods used to eliminate grid fault current and abnormal operation. It eliminates the fault current at the beginning and improves power quality. There are different types of SFCLs. We can change the fault current to the desired level using transformer type SFCL with two non-isolated secondary windings. This paper describes reduction in the fault current by placing the ideal position for SFCL in the micro grid. This model is simulated on MATLAB. In this model, the fault current created by artificial fault blocks in distribution and consumer grid and a wind farm used as distribution generation