３端子双極直流グリッドにおける洋上風力発電設備の運転継続を可能とする部分再構成法

HVDC grids have gained interest for integrating large amounts of renewable energy such as offshore wind power generation. This paper focuses on a three-terminal bipolar HVDC grid and proposes a partial reconfiguration method that realizes the continuous operation of offshore wind power plants against the dc fault. The proposed method realizes reconfiguration by combining MMCs and low-voltage dc circuit breakers without high-speed and high-current interruption capabilities. The method has the potential to improve the supply reliability while avoiding the increase in costs due to the use of high-performance dc circuit breakers. Computer simulations demonstrate that the wind power plant can continue to operate against the dc fault.