Research on Distributed Power Flow Controller and Application

The distributed power flow controller (DPFC) works to increase or reduce the reactance of the transmission line by injecting series compensation voltage. The DPFC control system, including DPFC centralized control device and valve layer controller, is designed based on the analysis of DPFC main circuit topology, control architecture, control strategy and protection configuration. It is verified by engineering application that the device can regulate power flow, and effectively solve the problem of the limit-exceeding of the power supply section of the power grid.