长江流域资源与环境 >> 2010, Vol. 19 >> Issue (2): 176-.

• 自然资源 • 上一篇    下一篇

华山观风电场风能资源评价

杨宏青|孙杰|刘敏|袁业畅|王凯   

  1. (武汉区域气候中心|湖北 武汉 430074)
  • 出版日期:2010-02-20

ASSESSMENT OF WIND ENERGY RESOURCE IN HUASHANGUAN WIND FARM

YANG Hongqing|SUN Jie|LIU Min|YUAN Yechang|WANG Kai   

  1. (Wuhan Regional Climate Center, Wuhan 430074, China)
  • Online:2010-02-20

摘要:

利用华山观风电场40 m测风塔2005年4月至2008年3月的测风资料,计算了平均风速、风速频率、风向频率、各方向风能、风功率密度及有效风速时数等各项风能参数,依据国标《风电场风能资源评估方法》(GB/T 18710-2002)中风功率密度等级划分标准对风电场的风能资源进行了评价,并利用距风电场最近的钟祥气象站的累年及同期气象资料,对测风期间的测风背景进行了分析。结果表明:风电场各高度年平均风速在55~57 m/s,年平均风功率密度在190~205 W/m2,年有效风速百分率在808%~823%;华山观主导风向与次多风向完全相反,不同高度两个方向合计频率在449%~505%;各风向风能分布比风向频率更加集中,不同高度主导风向的能量占478%~606%;风功率密度接近3级,具有一定开发利用价值,技术可开发量约3万kW;华山观风电场测风是在年平均风速小于多年平均风速的气候背景下进行的。

关键词: 风电场/ 风能资源/ 评价

Abstract:

In order to provide scientific basis for the exploitation of Huashanguan wind farm,its wind resource was analyzed and estimated.In this paper the wind energy indices were calculated,such as average wind speed,wind speed frequency,wind direction frequency,wind energy of each direction,wind power density and hours of effective wind speed,using the wind data of 40m observation tower in Huashanguan wind farm from April 2005 to March 2008.According to the Assessment Methods on Wind Energy Resource of Wind Farm >(GB / T 18710-2002),the wind energy resource in wind farm was assessed with the grading standard for wind power density.Based on historical and contemporaneous observing data of Zhongxiang meteorological station nearest to the wind farm,the background of observing wind was analyzed during wind observation.It showed that the annual average wind speed of each height at the wind farm was between 55 and 57m/s,and the annual average wind power density was between 190 and 205 W/m2 and that the percentage of annual effective wind speed was between 808% and 823%.The dominant wind direction at Huashanguan is completely opposite with the secondary wind direction,and the total frequencies in both directions at different height was between 449% and 505%.The distribution of wind power at each direction was more concentrated than the wind direction frequency,and the energy of dominant wind direction at different heights was accounted between 478% and 606%.The wind power density at different heights was between the second and third level,which is certainly valuable in the development and utilization.Observing wind at Huashanguan wind farm was under the climate background,which the annual average wind speed was less than the mean wind speed over years.

Key words: wind farm/wind energy resource/assessment

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