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.
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. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(15): 73-79.
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