含光伏电场的电力系统概率潮流计算  

Probabilistic Load Flow Calculation for Power Grid Containing Photovoltaic

作　　者：苏宏升[1] 严岩 车玉龙[1,2] SU Hong-sheng;YAN Yan;CHE Yu-long(Sschool of Automation &Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,兰州730070 [2]西南交通大学电气工程学院,四川成都610031

出　　处：《控制工程》2018年第12期2197-2202,共6页Control Engineering of China

基　　金：国家自然基金项目(61263004)

摘　　要：针对概率潮流计算中采用拉丁超立方算法存在精度低,操作性复杂的特点,本文提出一种将随机行走原理和拉丁超立方采样相结合的概率潮流计算新方法。该方法应用随机行走原理中各样本更具随机性、均等性和无偏性的特点,对拉丁超立方算法中排序进行改进,旨在改善排序问题中存在的缺陷。通过在含光伏电场的IEEE-14节点系统和IEEE-118节点系统概率潮流计算表明:该方法能更好的反应概率潮流计算中随机变量的数字特征,解决拉丁超立方计算中精度相对较低,操作性复杂的缺陷。是一种有效的概率求解算法,具有较好的工程实用价值。In view of the fact that the Latin hypercube algorithm(LHS) possesses a lower accuracy and more complex operations in probabilistic load flow calculation(PLF), in this paper, a novel PLF is proposed combining the random walk theory and LHS together. This method fully applies the characteristics such as randomness, equality and unbiasedness of each sample in the random walk to overcome the LHS deficiencies in sorting algorithm design. By applying in IEEE-14 bus system and IEEE-118 bus system containing the PV field, PLF can better show the digital feature of random variables, such that the defects and operation complexity of which are overcome. Hence, PLF is an effective PLF random method and possesses good engineering application value.

关 键 词：拉丁超立方抽样 随机行走 概率潮流 光伏电场 

分 类 号：TM744[电气工程—电力系统及自动化]