场间尾迹簇对风电场发电量和载荷的影响分析

Analysis of Influence of Cluster Wakes Between Wind Farms on Wind Power Generation and Load

随着我国风电产业的快速发展,以及土地、接入系统等因素的限制,区域内多风场聚集的现象越来越普遍。首先,为明确相邻风电场间尾迹簇对风电场发电量的影响,利用3座风电场的实测数据,采用线性回归方法,仿真计算了尾迹簇对下风向风电场的发电量,仿真结果表明陆上相距13 km风电场间尾迹簇对发电量的有影响。其次,利用FAST.Farm风电场仿真工具对尾迹簇对风力机的载荷影响进行了分析,仿真结果表明下风向风机在低速轴、偏航轴承等大部件的载荷受尾迹簇影响明显增加。

With the rapid development of China’s wind power industry,as well as the restriction of land,access system and other factors,the phenomenon of multi-wind field aggregation in the region is becoming more and more common.Firstly,in order to clarify the influence of wake clusters between adjacent wind farms on the power generation of wind farms,the measured data of three wind farms were used to simulate and calculate the power generation of downwind wind farms by using linear regression method.The simulation results show that the wake clusters between wind farms with a distance of 13 km on land have an impact on the power generation.Secondly,the influence of wake clusters on the load of wind turbine is analyzed using the FAST.Farm wind farm simulation tool.The simulation results show that the load of downwind fan in low-speed shaft,yaw bearing and other large components is significantly increased by the influence of wake clusters.