半潜式风电系统运动特性物理模型试验

Physical Modeling Test Research on Motion Characteristics of Semi-Submersible Wind Power System

为了开展漂浮式风电系统系统布置方案及偏航状态对系统6自由度运动响应、锚链拉力及塔底弯矩的影响,基于物理模型试验,采用推力相似原则,对比典型工况下系统特性特征。结果表明,正常运行状态下正对风向靠前布置的漂浮式风电系统布置方案更优;对于极限工况停机状态,当偏航系统调成风向垂直叶轮转轴时,对控制系统垂荡、艏摇自由度的运动响应有利;当偏航系统顺浆时,对于系统均衡锚链拉力,控制塔底弯矩有利。

In order to study the layout plan of the floating wind power system and influence of yaw state on the six degree of freedom motion response,anchor chain tension,and tower bottom bending moment,based on physical model experiments,the principle of thrust similarity is adopted to compare the system characteristics under typical working conditions.The results show that under normal operating conditions,the layout scheme of a floating wind power system arranged in front of the wind direction is more optimal;For the extreme operating condition shutdown state,when the yaw system is adjusted to the wind direction vertical impeller shaft,it is beneficial for the motion response of the control system's heave and bow sway degrees of freedom;When the yaw system is in the forward direction,it is beneficial for the system to balance the tension of the anchor chain and control the bending moment at the bottom of the tower.