This paper proposes a novel fault-ride through method for offshore wind farms connected to grid through a voltage source converter (VSC)-based high voltage direct current (HVDC) transmission. The proposed method introduces a controlled voltage drop at offshore grid when an onshore fault occurs. The idea behind is to achieve a fast power reduction. Additionally in the proposed idea, every individual wind turbine detects the voltage drop of offshore grid almost simultaneously, then its controller decreases the power set-point to reduce the power output from each wind turbine. The effectiveness of this method is verified by numerical simulations performed in PSCAD.
- offshore wind farm
- voltage source converter
- high voltage direct current transmission
- fault-ride through
Sun, W., Torres-Olguin, R. E., & Anaya-Lara, O. (2016). Investigation on fault ride-through methods for VSC-HVDC connected offshore wind farms. Energy Procedia, 94, 29-36. https://doi.org/10.1016/j.egypro.2016.09.185