Adaptive control algorithm for improving power capture of wind turbines in turbulent winds
Adaptive control algorithm for improving power capture of wind turbines in turbulent winds
复制标题
用于改善湍流风中风力涡轮机功率捕获的自适应控制算法
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Miriam Monros
中科院分区：
文献类型：
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作者：
Lluis Diaz;F. D. Adegas;J. Stoustrup;Miriam Monros
标准风力涡轮机（WT）控制律将施加到发电机的扭矩修改为发电机速度（Kω2）的二次函数，同时叶片定位在某个最佳桨距角（β*）。应适当选择K和β* 的值，以增加能量捕获。在实践中，由于湍流风，WT面临的复杂和时变的空气动力学使得他们的确定成为一项艰巨的任务。所选择的恒定参数可以针对特定的但不是全部的风况条件使能量最大化。自适应性可以修改控制器，以增加可变风力条件下的功率捕获。本文提出了新的分析工具和自适应控制律，以增加风力涡轮机捕获的能量。由于其简单性，它可以很容易地添加到现有的行业标准控制器。通过在一个高精度气动弹性程序上的仿真验证了该算法的有效性。
The standard wind turbine (WT) control law modifies the torque applied to the generator as a quadratic function of the generator speed (Kω2) while blades are positioned at some optimal pitch angle (β*). The value of K and β* should be properly selected such that energy capture is increased. In practice, the complex and time-varying aerodynamics a WT face due to turbulent winds make their determination a hard task. The selected constant parameters may maximize energy for a particular, but not all, wind regime conditions. Adaptivity can modify the controller to increase power capture under variable wind conditions. This paper present new analysis tools and an adaptive control law to increase the energy captured by a wind turbine. Due to its simplicity, it can be easily added to existing industry-standard controllers. The effectiveness of the proposed algorithm is assessed by simulations on a high-fidelity aeroelastic code.