【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。更多还原

【Abstract】 To analyze the transient stability of power system integrated with wind farms and photovoltaic plants,Sobolsequence which has equidistributed sample values to compute transient stability of power system was applied,obtainingaccurate result by less simulation times. Meanwhile,Mixed-Copula was applied to measure the correlation of wind farmsand the correlation of photovoltaic plants. Then judging whether the selected Copula is suitable or not by calculating thesquared Euclidean distances to empirical Copula. The case study on IEEE 39-bus system showed the effectiveness andapplicability of the method proposed by this paper. Then different transient models of wind farm and photovoltaic plantare used to study their impact on the transient stability of power system.更多还原