期刊
RENEWABLE ENERGY
卷 133, 期 -, 页码 1455-1467出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2018.08.097
关键词
Floating offshore wind turbine; Reliability analysis; Fault Tree Analysis; Minimum cut sets; Importance measures
资金
- Strategic Research Plan of the Centre for Marine Technology and Ocean Engineering (CENTEC) - Portuguese Foundation for Science and Technology (Fundacao para a Ciencia e Tecnologia-FCT) [UID/Multi/00134/2013-LISBOA-01-0145-FEDER-007629]
- International Science and Technology Cooperation Program of China [2013DFE73060]
With the development of offshore wind power, the reliability analysis of offshore wind turbines is increasingly significant due to the system complexity and negative impacts in harsh operating conditions. In this study, the Fault Tree Analysis method is adopted for both qualitative and quantitative evaluation of semi-submersible floating offshore wind turbine failure characteristics. The floating offshore wind turbine is divided into several assemblies, including support structures, pitch and hydraulic system, gearbox, generator and the other systems. Failure rates of relevant offshore structures are collected from previous studies, reports and reliability databases. On this basis, the quantitative assessment of Minimum Cut Sets and Importance Measures are achieved. The calculated results are generally in conformity with statistical data, indicating that most of the failures are caused by several basic factors. Marine conditions, especially the salt-spray and high wind speed, show the most significant impact on floating offshore wind turbine performance. (C) 2018 Elsevier Ltd. All rights reserved.
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