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| 风力机叶片失速延迟现象分析与修正研究 |
| Analysis and modification of stall delay phenomenon of wind turbine blades |
| 投稿时间：2013-10-31 |
| DOI：10.13259/j.cnki.eri.2014.03.007 |
| 中文关键词: 水平轴风轮机 性能分析 失速延迟模型 |
| 英文关键词:horizontal-axis wind turbine performance analysis stall delay |
| 基金项目: |
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| 中文摘要: |
| 随着经济的发展，各国越来越重视清洁能源，因此风力发电技术得到了很大的提高，对风力发电的研究也越来越深入。由于旋转效应的存在，使得风力机叶片的失速发生了延迟。旋转引起边界层的失速延迟使得基于二维叶素理论的风轮机设计和性能预估方法得到的估算值较实际功率输出值偏小，为此近年来许多学者进行深入研究，并建立了几种失速延迟修正模型。应用四种模型对实验风力机气动特性进行计算，将计算结果与实验结果作比较，并讨论了这些模型的误差特点及适用范围。 |
| 英文摘要: |
| With economic development,more and more attention is paid to clean energy in various countries. Wind power technology has been greatly improved and wind power research is continuously advanced.Because of the rotational effects,stall of the blade is delayed.Owing to the stall delay of the boundary lawyer caused by rotation,the methods of wind turbine design and performance prediction based on 2-D blade element/momentum theory(BEMT) produce lower result than actual power output.So during past years,many scholars have done much research into these problems and set up a few stall delay correction models.The present work calculates the performance features of real experimental wind turbine with these models,and analyzes the differences between the predicted and measured performance results.Finally,the deviation characteristics and application scope of these models is elaborated. |
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