Overview of Important State-of-the-Art Technologies in Offshore Wind Energy Systems

Author(s): Yuan-Kang Wua*, Li Wangb, Yong-Qing Huangc, Shu-Wei Liuc
a National Chung-Cheng University, No.168 University Road, Minghsiung, Chaiyi 62102, Taiwan
b National Chung-Kung University, No.1, University Road, Tainan City 701, Taiwan
c Industrial Technology Research Institute, Green Energy and Environment Research Laboratories, Hsinchu, 31040, Taiwan
International Journal of Smart Grid and Clean Energy, vol. 2, no. 2, May 2013: pp. 215–222
ISSN: 2315-4462
Digital Object Identifier: 10.12720/sgce.2.2.215-222

Abstract: Modern wind plants in offshore wind farms have grown in capacity into facilities that can no longer be ignored in transmission planning studies. Additionally, a large penetration of wind generation in an offshore wind farm into the power system will bring a number of challenges on system planning, operation, and impact analyses. This paper will provide an overview of the important state-of-the-art technologies in offshore wind energy systems, including the designs on internal electric system of an offshore wind farm, transmission system to shore, generator type, system frequency, transmission cable, communications medium and SCADA system, offshore substation and transformer. Additionally, the development on reactive power compensation, collection grid topologies, redundancy design for improving system reliability, power quality standard and measurement, and protection scheme on switching transient will also illustrated in this paper.

Keywords: Offshore wind farm, internal electric system, reactive power compensation, collection grid topology, redundancy design, power quality

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