Cascaded Pumping Cycle Control for Rigid Wing Airborne Wind Energy Systems
Cascaded Pumping Cycle Control for Rigid Wing Airborne Wind Energy Systems
复制标题
刚性翼机载风能系统的级联泵循环控制
DOI：
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复制
发表时间：
2019
影响因子：
2.6
通讯作者：
T. Haas
中科院分区：
文献类型：
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作者：
S. Rapp;R. Schmehl;E. Oland;T. Haas
机载风能是一项新兴技术，利用系留无人机在高于传统塔式风力涡轮机的高度收集风能。为了使该技术与其他可再生能源技术相比具有竞争力，需要一个可靠的控制系统，允许在整个飞行的所有阶段自主操作系统。在目前的工作中，提出了一种用于刚性机翼机载风能系统可靠泵循环控制的级联非线性控制方案。提出了状态机形式的高级控制策略以及由路径跟踪引导和控制、姿态和速率环组成的飞行控制器以及用于系绳力跟踪的绞车控制器。将导出现有原型的数学模型，并使用模拟研究的结果来证明所提出的概念在存在湍流和阵风的情况下的鲁棒性。
Airborne wind energy is an emerging technology that uses tethered unmanned aerial vehicles for harvesting wind energy at altitudes higher than conventional towered wind turbines. To make the technology competitive to other renewable energy technologies a reliable control system is required that allows autonomously operating the system throughout all phases of flight. In the present work a cascaded nonlinear control scheme for reliable pumping cycle control of a rigid wing airborne wind energy system is proposed. The high-level control strategy in the form of a state machine as well as the flight controller consisting of path-following guidance and control, attitude, and rate loop is presented along with a winch controller for tether force tracking. Amathematical model for an existing prototype will be derived, and results from a simulation study will be used to demonstrate the robustness of the proposed concept in the presence of turbulence and wind gusts.