复杂山地风场机组选型优化案例分析

Study on Wind Turbine Optimization for Complex Mountain Wind Farms

山地风场地形起伏往往较大,导致场内风资源高低不一。针对复杂山区地形风场,若全场采用单一的风电机组机型,不利于充分利用资源禀赋、提高项目的投资收益。在摸清资源分布的前提下,对于低风速区域,采用单位千瓦扫风面积较大、捕风能力更强的风电机组,以提高利用小时;对于高风速区域,采用单机容量较大、发电能力更强的风电机组,适当降低利用小时,但可提高风场的装机规模,提高风资源的利用程度。通过精细化模拟资源,差异化选择风电机组,多方案组合,技术、经济多因素比较,以达到投资收益最大化的目的。

Mountainous wind farms often have large topographic ups and downs,resulting in different levels of wind resources within the field.For complex mountainous terrain wind farms,if the whole field adopts a uniform wind turbine model,it is not conducive to fully utilize the resource endowment and improve the project’s investment returns. By figuring out the distribution of resources,for low wind speed areas,the use of WTGs with larger unit kW wind swept area and stronger wind catching capacity is used to improve the utilization hours;for high wind speed areas,the use of WTGs with larger single unit capacity and stronger power generation capacity appropriately reduces the utilization hours,but it improves the installed scale of the wind farm and increases the degree of utilization of the wind resources. Through the refined simulation of resource distribution, differentiated selection of WTGs, multi-scheme combinations,and technical and economic multi-factor comparisons,in order to achieve the purpose of maximizing investment returns.