Research on Feeder Interconnect Flexible Multi-State Switch

Aiming at the problems of feeder power imbalance, transformer overload, and difficulty in increasing capacity of urban transmission and distribution in the current distribution network, this paper proposes a flexible interconnection scheme for distribution network feeders. The flexible multi-state switch section is used to replace the traditional tie switch to realize fast and real-time power flow adjustment between adjacent power distribution networks. The paper studies the principle of flexible multi-state switch applied to distribution network feeder interconnection to realize power flow reversal. The simulation results verify the power flow control, power flow reversal and feeder load balancing effect of flexible multi-state switch.