含DCPFC的混合直流/交流联合电网无功优化

Hybrid DC/AC combined grid transmission technology based on current source converter (CSC) and voltage source converter (VSC) is one of the effective means to solve large-scale long-distance power transmission and new energy grid connection.Firstly, the DC network steady-state model considering the voltage droop control method and DC power flow controller (DCPFC) is established.Based on this, a hybrid DC/AC combined grid reactive power optimization model considering the accurate loss of VSC is constructed.Through the simulation of the example, the influence of the AC system generator set output, the VSC voltage droop parameter and the DCPFC ratio on the active loss of the combined power grid is analyzed.Research shows that optimizing the VSC Reactive PoweReactive power optimization of hybrid DC/AC combined power grid with DCPFCr Optimization of Hybrid DC/AC Combined Power Gridvoltage droop parameter andReactive Power Optimization of Hybrid DC/AC Combined Power Grid Considering DCPFC DCPFC ratio has an important effect on reducing the active loss of the whole network.