Optimal Altitude Control of an Integrated Airborne Wind Energy System with Globalized Lyapunov-based Switched Extremum Seeking
Optimal Altitude Control of an Integrated Airborne Wind Energy System with Globalized Lyapunov-based Switched Extremum Seeking
复制标题
基于全局李雅普诺夫的切换极值搜索的集成机载风能系统的最佳高度控制
DOI：
--
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
C. Vermillion
中科院分区：
文献类型：
--
作者：
A. Bafandeh;C. Vermillion
机载风能 (AWE) 系统用系绳和提升体取代了现代风力涡轮机的塔架和基础。这使得 AWE 系统能够调整其运行高度，以提供尽可能多的净能量。然而，确定最佳操作高度需要了解风速与高度（风切变）剖面，从而导致勘探和开发之间的权衡。在这项工作中，我们考虑了一个集成的 AWE 电池发电机系统，在该系统中，可以在低负载需求期间探索允许的高度范围，并在其他时间利用最佳高度。具体来说，我们基于基于全局李雅普诺夫的切换极值搜索（G-LSES）控制结构，提出并评估了四种候选层次结构，用于集成系统的控制。我们提供基于实际风速和负载需求数据的模拟结果。
Airborne wind energy (AWE) systems replace the tower and foundation of contemporary wind turbines with tethers and a lifting body. This enables AWE systems to adjust their operating altitudes to deliver the greatest amount of net energy possible. However, determining the optimal operating altitude requires knowledge of the wind speed vs. altitude (wind shear) profile, leading to a tradeoff between exploration and exploitation. In this work, we consider an integrated AWEbattery-generator system in which it is possible to explore the domain of admissible altitudes during periods of low load demand and exploit the best altitude at other times. Specifically, we propose and evaluate four candidate hierarchical structures, based on a globalized Lyapunov-based switched extremum seeking (G-LSES) control structure, for control of the integrated system. We present simulation-based results that are based on actual wind speed and load demand data.