摘要
在风电场场址选定的情况下,风电机组之间的尾流影响风电场风机的优化布置。目前,国内外关于符合风电场风机实际尾流以及迭加模型的研究主要侧重于一维线性模型及其迭加模型的实际应用。为此,推导建立了更加完整合理的一维非线性扩张尾流模型,即尾流影响边界随距离非线性增大;此外,根据风机尾流迭加的实际情况,分别推导建立了完整的风机尾流迭加计算模型来适应现有风电场的不同情形。通过相关工程算例结果与三维数值模拟计算结果的对比分析表明,所建立的风机尾流模型和尾流迭加模型更加合理,可有效提高风电场的发电效益。
The optimal layouts of wind turbine-generator （WTG） in wind farm are influenced by WTG wake when the site of wind farm is selected. At present, the research achievements in China and abroad on WTG wake and overlay model in actual wind farm mainly focus on one-dimension linear model. Aiming to improve the situation, more complete reasonable WTG wake model was constructed and its boundary in wake was nonlinear with the distance. In addition, according to actual circumstance in WTG wake, different fuller WTG overlay models were built to adapt to the situation of existing wind farm. The comparison results of engineering examples with 3-dimension numerical simulation show that the wake and overlay model in WTG proposed in this paper are more reasonable and it can effectively improve the generation benefit of wind farm.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2011年第19期37-42,共6页
Proceedings of the CSEE
