基于Sobol序列和混合Copula的含风电和光伏电力系统暂态稳定分析  

TRANSIENT STABILITY ANALYSIS OF POWER SYSTEM INTEGRATED WITH WIND FARMS AND PHOTOVOLTAIC PLANTS BASED ON SOBOL SEQUENCE AND MIXED-COPULA

作　　者：潘雄 张龙[2] 黄家栋[3] 王莉莉[3] 刘文霞 吴瑞华 

机构地区：[1]云南电网有限责任公司电网规划研究中心,昆明650011 [2]国网河南省电力公司电力科学研究院计量中心,郑州450052 [3]华北电力大学电气与电子工程学院,保定070003 [4]贵州电网有限责任公司电网规划研究中心,贵阳550003

出　　处：《太阳能学报》2015年第7期1622-1631,共10页Acta Energiae Solaris Sinica

摘　　要：为研究风电场和光伏电站接入对电力系统暂态稳定的影响,将Sobol序列应用于计算系统的暂态稳定分析,该方法的采样值具有均匀分布特性,较少的仿真次数便可得到准确的仿真结果。同时运用混合Copula函数度量风电场之间及光伏电站之间的相关性,并通过计算所选Copula函数到经验Copula函数的平方欧氏距离来评价模型的优劣。IEEE 39节点算例系统验证Sobol序列的有效性,并将不同的风电场和光伏暂态模型接入IEEE 39节点系统,研究不同模型对系统暂态稳定的影响。To analyze the transient stability of power system integrated with wind farms and photovohaic plants, Sobol sequence which has equidistributed sample values to compute transient stability of power system was applied, obtaining accurate result by less simulation times. Meanwhile, Mixed-Copula was applied to measure the correlation of wind farms and the correlation of photovoltaic plants. Then judging whether the selected Copula is suitable or not by calculating the squared Euclidean distances to empirical Copula. The case study on IEEE 39-bus system showed the effectiveness and applicability of the method proposed by this paper. Then different transient models of wind farm and photovoltaic plant are used to study their impact on the transient stability of power system.

关 键 词：风电场 光伏电站 Sobol序列 混合Copula函数 拟蒙特卡洛 暂态稳定 

分 类 号：TM712[电气工程—电力系统及自动化]