As the offshore wind farm construction from offshore to the deep sea,floating wind turbine will be the best choice. According to East China Sea environment condition and IEC standard,this article selects the Sinovel 6 MW wind turbine, researches the load characteristics in different foundation type using aerodynamic - hydrodynamic coupled time domain analysis methods. The calculated results show that blade root and hub ultimate loads are not obviously increase for floating wind turbine compared with offshore fixed wind turbine,but the increasing amplitude of tower bottom ultimate loads can achieve 30%. In normal power generation condition,blade root and hub loads are mainly controlled by wind loads,but the effects by wind loads and wave loads for tower bottom and top ultimate loads are different in different conditions.%海上风电场建设由近海走向深远海,漂浮式风电机组将会是这一区域最适合的选择.选用华锐6 MW机组,结合东海某海域环境条件和IEC规范,利用气动-水动耦合时域分析方法,对不同基础型式下的风电机组载荷特性进行研究.计算结果表明:漂浮式风电机组叶片、轮毂极限载荷与海上固定式风电机组相比没有明显增加,塔筒底部极限载荷增加幅度可达30%;在正常发电工况和极端空转工况叶片和轮毂极限载荷主要受风载荷控制,而塔筒底部和顶部极限载荷在不同工况受风载荷和波浪载荷影响效果则有不同.
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