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Surface-Layer Wind and Turbulence Profiling from LIDAR: Theory and Measurements

机译：LIDAR的表面层风和湍流分析：理论和测量

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摘要

As wind turbines become taller wind energy assessment and also turbine control require knowledge of the detailed mean and turbulence wind profiles at bigger heights (150 meters and more). A major challenge for wind power meteorology is therefore to circumvent the traditional role of the tall met-towers by replacing them with equally accurate, but ground-based remote sensing equipment. Compared to wind data from calibrated cup anemometers in tall met-towers, wind data from remote-sensing instrumentation, such as SODARS and LIDARS, still lack precision and data availability compared to mat data acquired from a met tower, in particular for use in connection with power curve reference and wind turbine certification purposes. However, recent progress with worldwide optical telecom technology and stable fibre lasers has led to realisation of a new and small wind Lidar system named 'ZephIR' able to profile the surface layer up to ～200 meters height [2] and [3]. In this paper we describe how improved signal processing has led to more accurate remote wind and turbulence profile measurements.
机译：由于风力涡轮机变得更高的风能评估，并且涡轮机控制需要在更大的高度（150米或更多）处的详细均值和湍流风廓线。因此，风动力学的一项重大挑战是通过以同样准确的，但基于基于地基的遥感设备来规避高层梅塔的传统作用。与校准杯子风速计的风数据相比，高型塔楼，与从Met Taker获取的垫数据相比，遥感仪器的风数据仍然缺乏精度和数据可用性，特别是用于连接电源曲线参考和风力涡轮机认证目的。然而，最近通过全球光学电信技术和稳定的光纤激光器的进展导致了一个名为“Zephir”的新的和小型风潮系统，该系统能够将表面层配置为〜200米高[2]和[3]。在本文中，我们描述了改进的信号处理如何导致更准确的远程风和湍流轮廓测量。

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