Offshore wind park AC grids with higher frequency

摘要

The use of HVDC for power transmission becomes more and more important for new offshore wind parks. State of art is a 50Hz offshore distribution grid. The DC connection decouples the offshore grid and the onshore grid, so frequency becomes a degree of freedom for offshore wind parks. In this paper the effects of a frequency higher than 50Hz on the main components of an offshore wind park are investigated. The pros and cons and the limitations of a higher offshore frequency are presented.