以东南沿海某半岛山地地形对风电场为研究对象,采用中尺度天气预报模式耦合风电场参数化模型,研究沿海半岛山地地形对风电场尾流的影响。结果表明：半岛山地地形对大气运动的时空相关性影响较大,在大气由海表向半岛运动的过程中,海表来流风速较小时,山地地形尾流区不同高度的大气水平输运作用较强,垂向输运与扩散作用较弱,在尾流区近海表（150 m以内）出现风加速,在尾流区海拔150~350 m高度范围风速明显减小,风电场尾流的垂向扩散范围较小,风电场尾流速度亏损主要分布在风轮旋转区域附近,并沿水平向后发展,对近海表（0~150 m范围）影响不大;随着风速的增大,大气的垂向输运与扩散作用增强,尾流区海拔150~350 m高度范围风速有所增大,风电场尾流的垂向扩散范围分布在海表至300 m高度范围内。
Abstract
This study investigates the impact of mountainous terrain on wind farm wake effects in a coastal peninsula of southeast China using a mesoscale weather forecast model coupled with a wind farm parameterization scheme. The results show that the peninsula's topography significantly modulates the spatiotemporal characteristics of atmospheric motion. Under low sea-surface wind speeds, atmospheric transport in the mountainous wake region is predominantly horizontal with limited vertical diffusion. This leads to wind acceleration near the sea surface （below 150 m） but a pronounced speed reduction between 150-350 m above sea level. Under these conditions, the wind farm wake deficit remains concentrated around the rotor area, extending horizontally downstream with minimal influence on the near-surface layer （0-150 m）. As wind speed increases, enhanced vertical transport and diffusion raise wind speeds in the 150-350 m altitude range and expand the vertical extent of the wake, which can reach up to 300 m above the sea surface.
关键词
风电场 /
半岛 /
山地地形 /
风电场参数化 /
风电场尾流 /
中尺度模式
Key words
wind farms /
peninsula /
mountainous terrain /
wind farm parameterization /
wind farm wake /
mesoscale model
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基金
国家自然科学基金（52166014）; 甘肃省基础研究创新群体资助项目（21JR7RA277）; 南方电网重点科技项目（NYJS2020KJ005-26）
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