System impact study for the future large-scale offshore wind farm around Penghu archipelago

Abstract

The Penghu archipelago, located at the Taiwan Straits, offers a great opportunity for developing large-scale offshore wind farm. However, the Penghu system represents a weak-grid characteristic, and the reactive power produced by the 59-km submarine cable connecting Taiwan and Penghu is high, which brings a severe challenge on the wind power integration. Therefore, in the initial planning phase, it is necessary to perform various system impact analyses, including the computations on steady-state power flows, fault currents, and transient stability. In terms of the stability analyses, this paper has focused on the impact of system faults on wind farms, the effects of wind speed fluctuation and wind farm trips on the system. This study utilized PSS/E software as a simulation tool. The results would provide significant references to the Penghu offshore wind farm project.