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中文摘要：
Spar平台深吃水导致平台俯仰和滚转固有频率较低,因此采用了引入纵荡、横荡自由度的线性状态空间模型的控制设计。为了有效减少风机载荷及更好调节风机出力,提出了基于Spar平台浮式海上风力机独立变桨距控制（IBP）的线性多目标状态反馈控制器模型。同时为了能够较好验证该模型的有效性,对基于基本控制器、扰动干扰控制器以及状态反馈控制器的3种独立变桨距控制进行对比。仿真结果表明：相对于基于可变增益比例积分控制器的统一变桨距控制,基于多目标状态反馈控制器的独立变桨距控制能将塔架前后及侧向弯曲疲劳载荷平均减少9%。
英文摘要：
The deep draft of spar- buoy results in the low platform pitch and roll natural frequencies. Therefore,the control design of linear state- space model which includes the surge and sway degrees of freedom is adopted. In order to effectively reduce the loads and adjust the output power of wind turbine,the state feedback controller model of linear multi- objective based on individual variable pitch control of floating offshore wind turbine in the Spar platform is proposed. And in order to verify the validity of the proposed model,three kinds of individual pitch controls based on the basic controller,disturbance-accommodating controller and a state feedback controller are compared. Simulation results show that compared to collective pitch control based on a gain- scheduled proportional- integral controller,individual variable pitch control based on a multi-objective state feedback controller is able to reduce the tower FA（ fore- aft） and side- side bending fatigue loads by an average of 9%.
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