Feeder Power Flow Control Strategy for Flexible Multi-state Switch with Joint Access to the Distributed Generation

Flexible multi-state switch (FMSS) has flexible power flow adjustment capabilities, which can effectively optimize the power distribution network power flow. In order to reduce the power and voltage fluctuations caused by the distributed generation (DG), connect the DG to the DC side of the FMSS to optimize the input power distribution of the DG. This paper analyzes the topology and mathematical model of the FMSS with joint access to the DG. Considering the feeder load rate and the maximum active power capacity ratio of the feeder, the active power output from the FMSS port connected to each feeder is deduced, and a feeder equalization control strategy for FMSS with joint access to the DG is proposed. A control structure combining a PI controller and a steady-state inverse model was designed for each port of FMSS. The effect of the proposed strategy was verified by building a simulation model of FMSS with joint access to the DG.