Control of photovoltaic power integration based on multi-terminal VSC HVDC system [光伏经多端柔性直流输电并网的控制研究]

作者：Wang L.; Wu X.^*; Hou J.; Wang T.

来源：Power System Protection and Control, 2019, 47(4): 65-72.

DOI：10.7667/PSPC180254

• Control strategy
• Fault ride-through (FRT)
• Multi-terminal VSC HVDC
• Photovoltaic power integration
• Simulation analysis

In order to solve the problem of long-distance transmission of large-scale photovoltaic power stations, a multi-terminal VSC HVDC system based on DC voltage-active power-AC voltage control strategy, which is connected with photovoltaic power stations, is designed in this paper. Using Matlab/Simulink, a five-terminal VSC HVDC model is constructed to verify the feasibility of the scheme. The model includes two photovoltaic power stations and a passive network. A series of simulations are carried out based on the model. The results show that the active power of the system can be automatically balanced when the output power of photovoltaic power stations changes. When the three-phase short circuit fault occurs in power grid, the photovoltaic power stations can still run in a stable state and have better ability of Fault Ride-Through (FRT).

• 出版日期2019
• 单位合肥工业大学