Study of fast-closing switch based fault current limiter with series compensation
This paper presents a new type of fault current limiter (FCL) with series compensation based on a fast-closing switch, which is composed of a capacitor bank and a reactor in series. The main control component is a fast-closing switch connected in parallel with the capacitors, which is driven by the electromagnetic repulsion force. It can respond to the order within 1ms. When a fault occurs, the switch closes and bypasses the capacitors, and the fault current is limited by the reactor. Simulated analysis shows that it is feasible to develop the FCL with low cost and high reliability. The effectiveness of transient stability for power systems is evaluated by digital simulation.
fast-closing switch series compensation fault current limiter (fcl)