首页> 外文会议>International Laser Radar Conference >IMPROVING MARYLAND'S OFFSHORE WIND ENERGY RESOURCE ESTIMATE USING DOPPLER WIND LIDAR TECHNOLOGY TO ASSESS MICROTMETEOROLOGY CONTROLS
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IMPROVING MARYLAND'S OFFSHORE WIND ENERGY RESOURCE ESTIMATE USING DOPPLER WIND LIDAR TECHNOLOGY TO ASSESS MICROTMETEOROLOGY CONTROLS

机译:采用多普勒风光激光雷达技术改善马里兰州的海上风能资源估算评估微型气象控制

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There is enormous potential to harness the kinetic energy of offshore wind and produce power. However significant uncertainties are introduced in the offshore wind resource assessment process, due in part to limited observational networks and a poor understanding of the marine atmosphere's complexity. Given the cubic relationship between a turbine's power output and wind speed, a relatively small error in the wind speed estimate translates to a significant error in expected power production. The University of Maryland Baltimore County (UMBC) collected in-situ measurements offshore, within Maryland's Wind Energy Area (WEA) from July-August 2013. This research demonstrates the ability of Doppler wind lidar technology to reduce uncertainty in estimating an offshore wind resource, compared to traditional resource assessment techniques, by providing a more accurate representation of the wind profile and associated hub-height wind speed variability. The second objective of this research is to elucidate the impact of offshore micrometeorology controls (stability, wind shear, turbulence) on a turbine's ability to produce power. Compared to lidar measurements, power law extrapolation estimates and operational National Weather Service models underestimated hub-height wind speeds in the WEA. In addition, lidar observations suggest the frequent development of a low-level wind maximum (LLWM), with high turbinelayer wind shear and low turbulence intensity within a turbine's rotor layer (40m-160m). Results elucidate the advantages of using Doppler wind lidar technology to improve offshore wind resource estimates and its ability to monitor under-sampled offshore meteorological controls impact on a potential turbine's ability to produce power.
机译:利用海上风的动能并产生动力存在巨大潜力。然而,在海上风力资源评估过程中引入了显着的不确定性,部分原因是有限的观察网络和对海洋气氛复杂性的糟糕的理解。鉴于涡轮机的功率输出和风速之间的立方关系,风速估计中的相对较小的误差转化为预期电力生产中的显着误差。马里兰大学巴尔的摩县(UMBC)从2013年7月至8月的Maryland的风能区域(WEA)在马里兰州的风能区域(WEA)内收集了自然测量。这项研究表明了多普勒风潮技术能力降低估计海上风力资源的不确定性与传统资源评估技术相比,通过提供更准确的风型和相关的轮毂高风速变异性。该研究的第二个目的是阐明海上微观物理控制(稳定性,风剪切,湍流)对涡轮机的产生功率的影响。与LIDAR测量相比,电力法外推估计和运营国家天气服务模型低估了WEA中的枢纽高风速。此外,LIDAR观察表明,涡轮机转子层(40m-160m)内具有高涡轮机的风力剪切和低湍流强度的低级风力最大(LLWM)的频繁开发。结果阐明了多普勒风光乐雷达技术改善海上风力资源估算的优势及其监测潜水近海气象控制的能力对潜在的涡轮机产生功率的能力。

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