For planning the construction procedures, deploying vessels and equipment properly, to reduce cost and adapt to the requirements of offshore wind farm development in the coming era of flat rate, the algorithm based on mixed integer linear programming for construction weather window and efficiency is proposed. Utilizing the 1-hour hindcast wind and wave data with a time span of 25 years （1996-2020）, the construction weather window and efficiency of the foundation construction and offshore wind turbine installation are evaluated both on spatial and temporal scope. With respects to the specific wind farms that will be constructed in the “14th Five-Year Plan”, the detailed analysis is performed. The results suggest that the efficiency of offshore foundation construction and wind turbine installation has significant spatial and temporal variation characteristics, and can be affected by the selected construction method. For specified offshore wind farm, the environment conditions, construction efficiency, vessels and equipment should be considered comprehensively to shorten the construction period and further reduce construction cost.
Key words
offshore wind farm /
weather window /
foundation construction /
wind turbine installation /
linear programming /
Guangdong sea area
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