Two-stage Rolling Optimized Maintenance Strategy for Offshore Wind Turbines Considering the Influence of High & Low Wind Speed
Aiming at the maintenance decision-making problem of offshore wind turbines under the influence of complex weather changes,a two-stage rolling optimization opportunistic maintenance strategy for offshore wind turbines considering the influence of high wind speed and low wind speed is proposed.Firstly,a maintenance age regression model considering the impact of high wind speed impact is proposed,and the maintenance cost-benefit relationship is quantified based on the actual reliability of components.Secondly,a long-term and short-term two-stage preventive opportunistic maintenance model for offshore wind turbines considering the maintenance opportunity of low wind speed shutdown events is established,and the long-term preventive opportunistic maintenance threshold is updated in a rolling manner.The final simulation results show that the model proposed in this paper can effectively reduce the cost of offshore wind turbine downtime as well as fault losses,and improve the maintenance benefits during the turbine life cycle.
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