基于测风塔相互验证降低风电场发电量评估偏差

Reducing calculation error of annual energy output of complex terrain wind farm by anemometer tower mutual verification

在复杂地形条件下的风电场年上网电量计算中,尚无有效方法来评估风资源分析软件引起的误差。为此,以宁夏吴忠某复杂地形的风电场年上网电量估算为例,采用测风塔相互验证加权平均误差数值模拟方法对软件计算误差进行分析。经过风电场实际运行数据与设计数据对比,设计的风电场年上网量偏差仅为1.68%,评估效果理想,验证了采用该分析方法降低复杂风电场年发电量计算偏差的可行性,为其它复杂地形风电场的年发电量准确计算提供了理论支持。

In the calculation of annual on-grid generation of wind farms in complex terrain area,no effective method can evaluate the calculation error caused by the wind resource analysis software. So,we apply anemometer tower mutual verification based weighted mean error numerical simulation to calculate the software error of annual on-grid energy for a complex terrain wind farm in Wuzhong,Ningxia. Through comparing the design data with actual operation data,the annual on-grid energy deviation is 1.68%. The assessment effect is satisfactory,which proves the feasibility of anemometer tower mutual verification based weighted mean error numerical simulation in reducing calculation error of annual on-grid energy of wind farms in complex terrain. The new method provides theoretical support for annual on-grid energy accurate calculation of other complex terrain wind farms.