WEPAS和WAsP在复杂地形条件下的适应性  

Adaptability of WEPAS and WAsP Software in Complicated Terrain Conditions

作　　者：李雪[1] 李桂敏[1] 李伟宏[1] 任弘毅[1] 

机构地区：[1]北京木联能软件技术有限公司,北京100096

出　　处：《电网与清洁能源》2011年第10期87-92,共6页Power System and Clean Energy

摘　　要：利用WEPAS和WAsP软件分别计算了南澳风电场的发电量,在充分考虑岛屿型复杂地形地貌条件下对2个软件的计算结果进行对比分析,研究表明,对于地形复杂的南澳风电场,WEPAS和WAsP软件发电量计算结果与实际发电量差值分别为-15.18%和28.02%。其中,WEPAS软件计算的风电场风速和风功率密度上下限偏差较小,结果比较平滑;WAsP软件计算结果比实际值偏高,但是单台风机平均风速和发电量计算结果与实际风况变化趋势比较一致。对上述结论的可能原因进行分析,初步显示2种软件的风场风况计算模式在复杂地形条件下存在较大的不足,风场诊断模式不能较好地模拟复杂地形条件下大气边界层风廓线的实际流动状况。因此,需要改进模式,研发出适用于大气边界层流动计算的风廓线模型、湍流模型和地表函数模型。The author uses WEPAS and WAsP to calculate the wind power generation in Nan＇ao Island, with adequate consideration given to the complicated terrain conditions there. The comparative analysis is made on the calculation result and the real wind power output, which suggests that the deviations between the real wind power output and the calculated values by WEPAS and WAsP are -15.18% and 28.02%, respectively. The calculated wind speed by WEPAS is smoother with marginal deviations from the upper and lower limits of the wind power density, while the calculated result by WAsP has a larger deviation from the real value, though the calculated results of the average wind speed and power output for a single unit are comparatively in conformity with the wind change. Possible reasons for the conclusion are explored and the primary analysis suggests that theses two kinds of software have shortcomings because the wind diagnosis model fails to simulate perfectly the wind profile of atmospheric boundary layer in complicated terrain conditions. Therefore, the paper concludes that further studies should be conducted and proper wind profile model, the turbulence model, and the sm＇face function model should be developed for calculations for air flows on the atmospheric boundary layer.

关 键 词：风电场发电量 复杂地形 WEPAS WASP 

分 类 号：TM614[电气工程—电力系统及自动化]