CAJ | 학술논문

[目的]探讨河西走廊中西部风能资源的时空分布特征及储量.[方法]利用河西走廊中西部10个气象观测站1955～2007年风速气象资料和2007年～12月专用风塔精细资料,研究了该区域内风能资源的分布特征及其储量.[结果]河西走廊中西部环境风速相对比较稳定,气候特征分布上无明显的跳跃式变化;风能资源分布存在明显的地域性差别,瓜州县和玉门市附近存在1个风能大值区;区域内风能普遍较高,10 m高度层内风能密度在100 w/m2以上,大部分地方在140 w/m2左右,大值地带在200w/m2以上;垂直方向上风能随高度呈线性增长,平均每升高10 m风能约增加15 w/m2左右,50 m层风能普遍大于240 w/m2.河西走廊中西部风能存在明显的日、年变化,3～5月是风能密集阶段;距地面高度10 m处风能在10:00前后处于低值,从11:00以后不断增大,到18:00前后达到日最大,然后逐渐减小.区域内年有效风速时数普遍在6200 h以上,大值区接近7600 h.[结论]为河西走廊中西部风能的开发利用提供了理论结据.
[목적]탐토하서주랑중서부풍능자원적시공분포특정급저량.[방법]이용하서주랑중서부10개기상관측참1955～2007년풍속기상자료화2007년～12월전용풍탑정세자료,연구료해구역내풍능자원적분포특정급기저량.[결과]하서주랑중서부배경풍속상대비교은정,기후특정분포상무명현적도약식변화;풍능자원분포존재명현적지역성차별,과주현화옥문시부근존재1개풍능대치구;구역내풍능보편교고,10 m고도층내풍능밀도재100 w/m2이상,대부분지방재140 w/m2좌우,대치지대재200w/m2이상;수직방향상풍능수고도정선성증장,평균매승고10 m풍능약증가15 w/m2좌우,50 m층풍능보편대우240 w/m2.하서주랑중서부풍능존재명현적일、년변화,3～5월시풍능밀집계단;거지면고도10 m처풍능재10:00전후처우저치,종11:00이후불단증대,도18:00전후체도일최대,연후축점감소.구역내년유효풍속시수보편재6200 h이상,대치구접근7600 h.[결론]위하서주랑중서부풍능적개발이용제공료이론결거.
[Objective] The aim was to explore the spatial and temporal distribution characteristics of wind energy resource and preservation in central and west area of Hexi Corridor. [Method] By dint of the wind speed data from 1955 to 2007 in ten meteorological observation station in central and west area of Hexi Corridor, and special wind tower fine data from January to December in 2007, the distribution and reserves of the region's wind energy resources were studied. [Result] The results showed that environmental wind speed was relatively stable in central and west Hexi Corridor. There ware no distinct changes in climate characteristics distribution. There were regional differences in the distribution of wind energy, and there was a large numerical area of wind energy in Gazhou County and Yumen City; Wind energy in the region generally was higher. The wind energy density was above 100 w/m2 in the 10 m layer, around 140 w/m2 in most places, and was more than 200 w/m2 in the large number area. The wind grew in vertical direction along with the linear growth of height. Each 10 m high wind increased to 15 w/m2 averagely, 50m layer wind energy was greater than the general 240 w/m2 and there were obvious changes on daily and annual with wind energy in central and west area of Hexi Corridor. The duration from March to May was a wind energy-intensive stage, 10m height from the ground in the wind around 10:00 in low-value. After growing from 11:00, it met the day largest number at 18:00, and then reduced gradually. Effective wind speed hours in the region in general were more than 6200 h, and the value in the large areas was close to 7 600 h. [Conclusion] The study laid basis for the development and application of wind energy in central and west area of Hexi Corridor.