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几种概率潮流算法的比较与分析
引用本文:李雪,李渝曾,李海英.几种概率潮流算法的比较与分析[J].电力系统及其自动化学报,2009,21(3).
作者姓名:李雪  李渝曾  李海英
作者单位:1. 上海大学机电工程与自动化学院,上海,200072
2. 上海理工大学计算机与电气工程学院,上海,200093
基金项目:国家自然科学基金项目,上海大学研究生创新基金项目,上海市重点学科建设项目 
摘    要:针对一次二阶矩法(FOSMM)和两点估计法(2PEM),并考虑协方差对均值修正的线性化概率潮流和近似二阶概率潮流等算法进行比较和分析.确定了节点注入量相互独立和互相关时的概率潮流计算模型以及算法步骤.在24节点系统上对几种算法进行验证,将所得潮流解与蒙特卡罗模拟(MCS)进行比较,分析各种算法的精确度,并阐明节点注入量互相关性对潮流解的影响.仿真结果表明,考虑协方差对均值修正的近似二阶概率潮流模型所获得的概率潮流解最准确,且节点注入量的互相关性对潮流解的标准差影响较大.

关 键 词:概率潮流  一次二阶矩法  两点估计法  相关性

Comparison and Analysis of Several Probabilistic Power Flow Algorithms
LI Xue,LI Yu-zeng,LI Hai-ying.Comparison and Analysis of Several Probabilistic Power Flow Algorithms[J].Proceedings of the CSU-EPSA,2009,21(3).
Authors:LI Xue  LI Yu-zeng  LI Hai-ying
Affiliation:1.School of Mechatronics Engineering and Automation;Shanghai University;Shanghai 200072;China;2.School of Computer and Electrical Engineering;Shanghai Universityof Technology;Shanghai 200093;China
Abstract:It was analyzed in the paper for the performance of the first-order second-moment method(FOSMM),two-pointestimate method(2PEM),the linearized model and the approximate second order model considering the impact of covariance on mean in the probabilistic power flow(PPF)calculation.With the assumption of the independent and correlated nodal injections,the models and procedures of the algorithms were presented.The algorithms were verified on a 24-bus system.The results obtained from the algorithms were compared...
Keywords:probabilistic power flow(PPF)  first-order second-moment method(FOSMM)  two-point estimate method(2PEM)  correlation  
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