中文摘要：

与传统能源相比,风力发电在节能减排方面具有明显优势,但对风电功率相互之间变化特性的把握不足,一定程度上限制了风电的实际应用。针对风电功率自身变化特性,定义了平稳性指标用于评价风电功率或负荷的波动程度;针对相互变化特性,定义了一致性指标用于评价电源之间、电源与负荷之间变化的一致程度;定义了互补性指标用于评价电源之间、电源与负荷之间的互补能力,与一致性指标共同描述相互变化特性,还定义了考虑变化方向的分指标;并与相关系数及同时率指标进行了比较。利用定义的指标对某地3个风电场风电功率及负荷功率变化的平稳性、一致性、互补性进行了计算,实现了不同情况下风电功率变化特性的量化评估。评估结果为解决多种电源特性比较、指导风电运行提供了新的信息。

英文摘要：

Compared with traditional energy sources,wind power generation possesses advantages in energy saving and emission reduction,however,insufficient understanding of mutual variation properties of wind power limits the development and application of wind power to certain extent.According to the variation properties of wind power itself,the stationarity index is defined to evaluate the fluctuation extent of wind power or that of load power;for mutual variation properties;the consistency index is defined to evaluate the consistency of variation between power sources and the consistency of variation between energy source and load;the complementarity index is defined to evaluate the complimentary ability between power sources and the complimentary ability between power source and load,and to describe mutual variation properties common with consistency index,in addition sub-indices considering the variation direction are defined.The defined indices are compared with correlation coefficient and simultaneity index.Using the proposed indices,the stationarity,consistency and complementarity of the variability of load power and wind power among three wind farms located in the same region are calculated,thus the quantitative evaluation on variation characteristics of wind power under different conditions is implemented.The evaluation results based on the proposed indices are available for reference to the comparison among various kinds of power source characteristics and can offer information to guide the operation of wind farms.