风速时间序列模拟的模型有效性验证及代表性风场实例分析

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (15) : 73-79.

论文

马赛，褚福磊

作者信息 +

Effectiveness verification of wind speed time series simulation models and typical wind field analysis

MA Sai, CHU Fulei

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文章历史 +

摘要

在风力发电场的合理选址以及风力发电机组的结构设计阶段，能量谱与功率谱模型对于风力发电机组的系统方案有着直接的影响，特别是在具体结构设计阶段选取恰当的功率谱模型是至关重要的，但目前对具体模型的选择依据尚不明确。针对能量谱与功率谱两种重要的风速数据分析模型，本文以国内五处地区代表性风场的全年风速测试数据为基础，进行了能量谱与功率谱的分析，从分析结果中得出了如下两个结论：(1)我国东南沿海地区风场的风力资源最为丰富，其有效风能密度区(200w/m2-400w/m2)持续时间最长；北部地区风场的风力资源也较为丰富，且在高风能密度区(>500 w/m2)具有一定优势；对于主要风力资源集中在低风能密度区(<200 w/m2)的部分地区风场，在风力发电设备选型时应该有针对性的进行结构设计，实现低速风力资源的高效利用。(2)对于具体风场的风速模型选择准则给出了实例验证与建议：Mann功率谱模型表现出与各风场实测数据良好的一致性，应该在进行结构设计时作为主要备选。

Abstract

In order to choose the suitable location of a wind farm and perform structural design of a wind turbine set, it is necessary to effectively evaluate the potential of a wind field and its energy level, and its energy spectrum model and power spectrum one have direct effects on the wind turbine set design.Selecting an appropriate power spectrum model is very important for the specific design scheme of wind turbine structure, and until now the model selection criteria are unclear.Here, aiming at the two important wind speed data analysis models of energy spectrum one and power spectrum one, the annual measured wind speed data from typical wind fields at domestic 5 areas were taken as a basis to do energy spectral analysis and power spectral one.The results showed that ① wind resources of wind fields in southeast areas of China are the most abundant, their effective wind energy density zones (200-400 W/m2) have the longest duration; wind resources of wind fields in north China are more abundant, and their high wind energy density zones (>500 W/m2) have a certain advantage; for wind fields in part areas where the main wind resources concentrate in the low wind energy density zones (<200 W/m2), the structure of wind power generating equipment should be designed with pertinence to realize high efficiency utilization of low speed wind resources; ② the wind speed model selection criterion for specific wind fields is validated with examples and analyses give the suggestion that the simulation results using Mann power spectrum model agree well with the measured data of all wind fields, and this model should be the main option in structural design.

导出引用

马赛，褚福磊. 风速时间序列模拟的模型有效性验证及代表性风场实例分析[J]. 振动与冲击, 2019, 38(15): 73-79

MA Sai, CHU Fulei. Effectiveness verification of wind speed time series simulation models and typical wind field analysis[J]. Journal of Vibration and Shock, 2019, 38(15): 73-79

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