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| 河西走廊风能变化及储量 | |
| 引用本文： | 王毅荣,林纾,李青春,龚建福.河西走廊风能变化及储量[J].气象科技,2007,35(4):558-562. |
| 作者姓名： | 王毅荣 林纾 李青春 龚建福 |
| 作者单位： | 1. 中国气象局北京城市气象研究所,北京,100089;中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,兰州,730020;甘肃省定西市气象局,定西,743000 2. 中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,兰州,730020 3. 中国气象局北京城市气象研究所,北京,100089 |
| 基金项目： | 北京城市气象科学研究基金;国家科技攻关项目;甘肃省气象局十人计划项目 |
| 摘 要： | 利用河西走廊地区1970~2004年风速气候资料和2004年9月至2005年8月风塔精细资料,研究了河西走廊风能资源特征。结果表明:河西走廊地区环境风速比较稳定,在气候上没有明显的减小趋势;绿洲内风速下降明显。风能分布存在区域差别,存在2个风能大值区域。全区风能普遍较高,10 m层内风能密度都在100 W/m2以上,大部分地方在150 W/m2以上,大值地带在200 W/m2以上;在10~70 m高度层风能随高度按线性关系增长,平均每升高10 m风能增加28 W/m2;70 m层普遍在300 W/m2以上。河西走廊风能存在日和年变化,2~6月是风能密集阶段;距地面10 m高度处风能在07:00前后处于低值,从08:00以后不断增大,到18:00前后达到日最大,然后逐渐减小。河西走廊年有效风速时数普遍在6000 h以上,大值区接近7500 h。 |
| 关 键 词： | 河西走廊 风能 储量 有效风速时数 |
| 收稿时间： | 4/7/2006 12:00:00 AM |
| 修稿时间： | 2006-04-07 |
Variation and Reserves of Wind Energy over Hexi Corridor |
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| Wang Yirong,Lin Shu,Li Qingchun and Gong Jianfu.Variation and Reserves of Wind Energy over Hexi Corridor[J].Meteorological Science and Technology,2007,35(4):558-562. | |
| Authors: | Wang Yirong Lin Shu Li Qingchun and Gong Jianfu |
| Institution: | 1 Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089; 2 Key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020; 3 Dingxi Meteorological Bureau, Gansu Province, Dingxi 743000 |
| Abstract: | The spatial-temporal variations of wind power over Hexi Corridor are studied by means of wind data over the corridor from 1970 to 2004 and the 10-minute interval intensive observation data from seven wind towers in the Gobi. The results show that the wind speed was relatively stable over Hexi Corridor;there is an obvious decreasing trend in wind speed within Oasis;there is regional difference in the distribution of wind power with two high power areas.Within 10 m above the surface,the wind power density is greater than 100 W/m2,mostly 150 W/m2 with the maximum being over 200 W/m2;and in the layer of 10 to 70 m, the wind power density increases with altitude linearly,28 W/m2 per 10 m,over 300 W/m2 at 70 m.There are diurnal and monthly wind power variations in Hexi Corridor with the higher density in the period of February to June.The wind power density is the lowest at about 10 m above the surface around 07:00,then increases gradually from 08:00,reaches the maximum at about 18:00,then decreases again.There is abundant wind resources in Hexi Corridor area.The duration of effective wind in Hexi Corridor can be up to 6000 hours or higher,even to 7500 hours. |
| Keywords: | Hexi Corridor wind energy reserves duration of effective wind |
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