A Topology to Limit Fault Current in theDistribution System

Abstract

In this project new concept is proposed which is fault current limiting DVR. Fault is detected by sensing the load current and its rate of change. In order to protect the sensitive equipment fault current is limited such that life of the equipment and the quality of the supply is improved. Bidirectional thyristor switches are used on the output side of PCC to limit the fault current. Switches are activated under fault condition and de-activated under normal condition. This is modeled using MATLAB SIMULINK.