水力发电2024，Vol.50Issue(1)：90-97,8.
复杂荷载作用下海上风机故障停机分析
Fault Shutdown Analysis of Offshore Wind Turbines under Complex Loads
摘要
Abstract
Taking the 10 MW fixed offshore wind turbine as research object a wind-wave-seismic-fault coupled model of offshore wind turbine is established to simulate the fault shutdown process caused by generator disconnection from electrical network.The dynamic response mechanism of the offshore wind turbine during the fault shutdown process is investigated by the time-frequency analysis method.The results show that (a) the control frequencies of structural response under wind and wave action are wind frequency and wave frequency; (b) the structural response significantly increases under seismic action and the second-order frequency of the offshore wind turbine becomes the control frequency ;and (c) during fault shutdown the structural response further increases and the blade pitch-to-feather shutdown significantly stimulates the fundamental frequency of the offshore wind turbine revealing that the safety design of offshore wind turbine structures should fully consider such fault shutdown situation.关键词
海上风机/故障停机/地震作用/耦合动力分析Key words
offshore wind turbine/fault shutdown/seismic action/coupled dynamic analysis分类
能源科技引用本文复制引用
陈松,李志川,邳帅,朱永飞,曹柏寒,卢东哲,王文华,李昕..复杂荷载作用下海上风机故障停机分析[J].水力发电,2024,50(1):90-97,8.基金项目
中海油能源发展股份有限公司2021年重大科研专项"海上风电一体化开发技术研究及应用(l期)(HFZDZX-JN2021-01) （l期）
