A New Scheme of Level Difference Protection of Distribution Network

With the rapid development of distribution network, distribution network has short lines and many nodes. The traditional three-stage current protection scheme is difficult to cooperate and the fault removal time is too long. To solve the above problems, this paper introduces the basic structure and operation characteristics of the superconducting fault current limiter, and presents a new current protection scheme based on the superconducting fault current limiter. The effectiveness of the proposed scheme is verified by simulation.