Research on Load Transfer Scheme and Control Strategy of Multi-terminal DC Distribution Network Based on Power Flow Controller

Multi-terminal flexible DC distribution network has become one of the important components of the future power grid system due to its advantages of good controllability and easy access to distributed energy. However, it is difficult to achieve full control of its power flow in low-voltage flexible DC distribution network. In this regard, this paper uses a bidirectional DC power flow controller to control the line power flow by changing the line voltage to achieve effective load transfer. Based on the research project of DC distribution network in Jinghu District of Shaoxing City, this paper proposes a load transfer scheme based on DC power flow controller, which improves the reliability of power supply in case of system failure. Finally, the effectiveness and feasibility of the proposed scheme are verified by building a simulation mode.