朝阳燕山湖区风电厂风能资源评价

Evaluation on Wind Power Resources of the Wind Power Plant in Yanshan Lake Area of Chaoyang County

[目的]研究辽宁朝阳燕山湖区的风能资源情况。[方法]2006年4月实测风塔,历时1年,实测10、30、60m的风向和风速,详细计算和分析风能资源的各参数,评价朝阳燕山湖区的风能资源。[结果]燕山湖风电场塔高60、30、10m处的年平均风速订正后分别为4.7、4.2、3.8m/s,年、月平均风速随高度增高而增大。燕山湖风场以WSW风为主导风向,出现的频率为13%,其次为NW风,出现的频率为10%～12%,偏S风为主导能量风向。塔高60m处3m/s风速出现频率最高;塔高30、10m处2m/s风速出现频率最高。各梯度风速变化呈单峰型,均以10:00～20:00风速最大,4:00～8:00风速最小。实测塔高60m处的3～25m/s有效风力时数在5151h以上,年平均风能密度在140W/m2以上。[结论]燕山湖区风能资源较为丰富,适宜建设风电场,具有一定的开发利用价值。

[Objective] The purpose was to study the situation of wind power resources of Yanshan Lake area in Chaoyang County of Liaoning province.[Method] The wind-measuring tower was set up on April,2006.The wind direction and velocity at the heights of 10,30 and 60 m were measured during 1 year.Parameters of wind power resources were calculated and analyzed in detail to evaluate the wind power resources of Yanshan Lake area in Chaoyang County.[Result] The corrected annual average wind velocities of Yanshan Lake wind power field at the tower heights of 60,30 and 10 m were 4.7,4.2 and 3.8 m/s resp,and the annual and monthly average wind velocities increased along with the increment of height.Yanshan Lake wind power field took WSW wind as dominant wind direction,with occurrence frequency of 13%;the next was NW wind with occurrence frequency of 10%~12%,and the wind leaning to S was dominant energy wind direction.The occurrence frequency of wind velocity of 3 m/s was highest at tower height of 60 m,and that of wind velocity of 2 m/s was highest at tower height of 30 and 10 m.All the wind velocity changes of each gradient were shown as single peak type,with maximum wind velocity at 10：00～20：00 and minimum wind velocity at 4：00～8：00.The measured effective wind power hours of 3～25 m/s at tower height of 60 m was over 5 151 h,with annual average density of wind power being over 140 W/m^2.[Conclusion] The wind power resources of Yanshan Lake area was richer and suitable to build wind power field,and had some value in exploitation and use.