Reliability-based calibration of site-specific design typhoon wind and wave loads for wind turbine. (1st November 2022)

• Record Type: Journal Article
• Authors: Hong, H.P.; Sheng, C.
• Is Part Of: Engineering structures. Volume 270(2022)
• Publication Date: 2022-11-01
• Subjects: Design code calibration -- Tropical cyclone -- Wind speed -- Wave height -- Wind turbine; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2022.114885
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: Presented procedure to perform reliability-based calibration of design typhoon wind and wave loads for monopile wind turbine. Calibrated site-specific quantiles of annual maximum typhoon wind and wave loads for specified target reliability indices. Recommended empirical equations for estimating required return periods to be used to evaluate typhoon wind and wave loads. Calibrated and recommended companion load combination factors for typhoon wind and wave loads. Showed the adequate of using the suggested design wind and wave loads to achieve the target reliability index. Abstract: The wind turbines (WTs) that are designed, constructed, and installed near the coastline of mainland China are faced with geographically varying tropical cyclone hazards; failure of WTs due to the tropical cyclone (TC) hazards has been observed in this considered region. The reliability-based Chinese design code calibration of WTs subjected to TC hazards for the considered region seems missing in the literature. In the present study, we calibrate the site-specific design TC wind and wave loads for designing offshore and onshore WTs located in the considered region for selected target reliability indices. The calibration considers the correlated TC wind speed and significant wave height during the passage of TC events. Also, the companion load factors by considering wind load and inertial wave load effects are calibrated. Moreover, the statistics of the responses of the onshore and offshore versions of the National Renewable Energy Laboratory 5 MW wind turbines are calculated using the software package FAST. The statistics of the responses are used in the reliability-based verification analysis by considering the calibrated design TC wind load and wave load requirements. The results indicated that using the calibrated geographically varying TC wind and wave loads is adequate and can be used to aid structural design code making.