Wind resource potential assessment using a long term tower measurement approach: A case study of Beijing in China
Wind resource potential assessment using a long term tower measurement approach: A case study of Beijing in China
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使用长期塔测量方法进行风资源潜力评估：以中国北京为例
DOI：
10.1016/j.jclepro.2017.10.347
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发表时间：
2017
影响因子：
11.1
通讯作者：
Linlin Wang
中科院分区：
文献类型：
--
作者：
Junkai Liu;ChloeY. Gao;Jingzhen Ren;Zhiqiu Gao;Hanwei Liang;Linlin Wang
随着污染物排放导致的空气质量恶化和能源供应危机的加剧，风能消费将在中国未来的能源结构中发挥关键作用。为了更好地利用风能，更好地了解和量化风资源的时空分布和垂直分布是至关重要的。基于1991 - 2011年北京市15层325 m气象塔的实测风场资料，利用威布尔函数和WAsP软件对北京市风资源潜力进行了评估。结果表明，风资源具有明显的季节变化和日变化，且日变化随高度而变化。此外，虽然风资源随高度增加，但与复杂的城市下垫面相关的风切变层很强。此外，观测和WAsP模拟表明，北京西北部或北方的西北风是较大的风资源。然而，考虑到区域平均风力资源，我们得出的结论是，北京的风力资源适合小型风力涡轮机，但风力资源的减少趋势似乎使风能不可持续。
With exacerbating air quality due to pollutant emissions and rising energy supply crisis, the wind energy consumption will play a key role in future energy structure in China. To utilize the wind energy optimally, a better understanding and quantification of wind resource such as the temporal-spatial and vertical distributions is vital prior to exploitation. Based on wind measurements from 1991 to 2011 on a 15-level 325 m meteorological tower in Beijing, we assessed the potential of wind resource using the Weibull function and the wind atlas analysis and application program (WAsP) software. Results show that wind resource has significant seasonal and diurnal variations and diurnal variation varies with height. Additionally, although the wind resource increases with height, there is a strong wind shear layer related to the complex urban underlying surface. Furthermore, observation and WAsP simulation show that larger wind resource mainly comes from northwest wind in northwestern or northern Beijing. However, considering the regional average wind resource, we concluded that wind resource in Beijing is suitable for small wind turbines, yet the decreasing trends of wind resources seem to make wind energy unsustainable.