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Modelling and control of a VSC medium‐voltage DC distribution network with DFIG wind farm
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The voltage source converters (VSC) medium‐voltage DC (MVDC) is the future distribution network for integrating renewable energy sources. The doubly fed induction generator (DFIG) wind turbine is the most efficient option for wind farm application. The intermittency of wind power is challenging in grid integration at the AC distribution system level. This study presents a ±10 kV VSC MVDC network with DFIG wind farm integrated to mitigate these effect. Key MVDC network components and controllers are modelled including the control strategy for the MVDC grid. The proposed system is validated in MATLAB/SIMULINK for steady state and transient conditions. The results show that the MVDC can work as firewall that absorbs the fluctuating wind power to a stable system with good power flow and balance as well as constant DC voltage. Therefore, the MVDC network is a stable system with fast dynamic response.
Institution of Engineering and Technology (IET)
Title: Modelling and control of a VSC medium‐voltage DC distribution network with DFIG wind farm
Description:
The voltage source converters (VSC) medium‐voltage DC (MVDC) is the future distribution network for integrating renewable energy sources.
The doubly fed induction generator (DFIG) wind turbine is the most efficient option for wind farm application.
The intermittency of wind power is challenging in grid integration at the AC distribution system level.
This study presents a ±10 kV VSC MVDC network with DFIG wind farm integrated to mitigate these effect.
Key MVDC network components and controllers are modelled including the control strategy for the MVDC grid.
The proposed system is validated in MATLAB/SIMULINK for steady state and transient conditions.
The results show that the MVDC can work as firewall that absorbs the fluctuating wind power to a stable system with good power flow and balance as well as constant DC voltage.
Therefore, the MVDC network is a stable system with fast dynamic response.
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