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| Relationship between atmospheric stability and wind parameters in onshore wind farm clusters |
Shulin YANG( ),Qiang WANG*(),Kun LUO,Jianren FAN |
| College of Energy Engineering, Zhejiang University, Hangzhou 310027, China |
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Abstract The weather research and forecasting (WRF) model was employed to study the relationship between atmospheric stability and wind parameters in onshore wind farm clusters under different terrains. Results show that neutral atmospheric conditions predominate in mountainous regions, whereas strong stable and strong unstable conditions are frequent in gently sloping plains. Under unstable conditions, thermal factors constitute the primary drivers of vertical wind speed fluctuations and turbulence, with terrain variations as secondary factors and comparable mixing capabilities. In contrast, under stable conditions, terrain plays a dominant role in modulating vertical wind speed fluctuations and turbulence enhancement, with mountainous regions exhibiting significantly higher vertical mixing capacity than gently sloping plains. Atmospheric stability modulates wind speed and air density, thereby altering wind power density. The average wind power density under neutral conditions is 4 times and 10 times higher than that under strong stable and strong unstable conditions, respectively.
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Received: 09 February 2025
Published: 03 February 2026
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| Fund: 国家自然科学基金资助项目（52576235，52206281）；浙江省自然科学基金资助项目（LY24E060002）；航空科学基金资助项目（ASFC-20240007076002）. |
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Corresponding Authors:
Qiang WANG
E-mail: china_yangshulin@163.com;zjuqw@zju.edu.cn
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陆上风电基地大气稳定度与风参数的关联性研究
采用天气研究与预报（WRF）模式，针对不同地形下的陆上风电基地，开展大气稳定度与风特征参数的关联性研究. 结果表明，山地区域以中性大气状态为主，缓坡平原易呈现强稳定和强不稳定状态. 在不稳定状态下，热力因素主导垂直风速脉动和湍流增强，不同地形对大气的掺混能力近似；在稳定状态下，地形主导垂直风速脉动和湍流增强，山地区域的垂直掺混能力显著高于缓坡平原. 大气稳定度会调制风速和空气密度，改变风功率密度；中性状态下的平均风功率密度分别是强稳定和强不稳定状态下的4倍和10倍.
关键词：
风资源评估,
天气研究与预报（WRF）模式,
大气稳定度,
风参数,
风电基地
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