平鲁县风能资源状况分析

通过对平鲁区近30年风观测资料的综合分析,发现平鲁区多年年平均的风速日变化范围在2.5m/s～5m/s之间,风速的日变化主要随太阳辐射的变化而变化,风速的大小受太阳辐射、下垫面和地形影响较大。指出平鲁区每年4月份的风速最大,3月份风速次大,全年风速最大的季节在春季,冬季次之,夏季风速最小;全年的风能主要是由西北偏西风和西风提供,这两个风向的风能占到总风能的72%;多年的年平均风速没有明显的增大或减少趋势。

Analysis on the Wind Energy Resources of Pinglu County

The comprehensive analysis on 30 years＇observation data of wind in Pinglu Area, Shanxi Province, shows that the daily wind speed ranged from 2.5 m/s to 5 m/s, the daily variation of wind speed is depended on the variation of sun radiance, the variation of wind speed is mainly effected by solar radiation, underlying surface and terrain. The maximal wind speed occurs in April of each year, the wind speed of March takes the second place, the maximal wind speed occurs in the spring, winter＇s wind speed takes the second place and the minimal wind speed in the summer. The wind energy is provided mainly by the west wind and west-northwest wind, which account for 72% of the total wind energy. The mean annual wind speed of years shows no obvious change.