Abstract

Offshore wind power is an important kind of clean energy and of great development potential in the future. It has advantages of high wind speed and stable wind power, and gradually exhibits large-scale, clustering, and long-distance characteristics. Key technical problems of large-capacity offshore wind power transmission over long distance must be solved in the development and utilization of offshore wind power, and will be addressed in this paper. First, this paper presents the overview of long-distance offshore wind power integration in China, and then summarizes three types of integration schemes and its applicability. Second, it analyzes the characteristics of the voltage source converter based high voltage direct current (VSC-HVDC) integration scheme and associated key technical problems in practice, and the first milestone long-distance offshore wind power integration VSC-HVDC project in China is then introduced. Finally, recommendations on long-distance offshore wind power development in China are presented based on the characteristics of long-distance offshore wind power and VSC-HVDC integration technology.

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