电网技术Issue(11)：3254-3259,6.DOI:10.13335/j.1000-3673.pst.2015.11.036
计及离散分布输入变量的电力系统概率潮流计算方法
Probabilistic Power Flow Calculation Method of Power System Considering Input Variables With Discrete Distribution
摘要
Abstract
Random failure outage of generators has impact on power flow calculation. Thus, when conventional cumulant method based probabilistic power flow (PPF) calculation is performed, it will lead to relatively large errors. Considering input variables with discrete distribution, a cumulant based PPF method was proposed. In order to reduce power flow model linearization error, multipoint linearization method was used to deal with power injection of generator with discrete distribution. Meanwhile, threshold analysis was put forward to improve computational efficiency. Finally, combination of A-Type and C-Type Gram-Charlier series was used to estimate probability distributions of state variables. Accuracy and efficiency of the algorithm is verified with stimulation of IEEE RTS 24-bus system. The results indicate that the proposed method can solve PPF problem accurately and quickly.关键词
离散分布/概率潮流/多点线性化/阈值分析/Gram-Charlier级数Key words
discrete distribution/probabilistic power flow/multipoint linearization/threshold analysis/Gram-Charlier series分类
信息技术与安全科学引用本文复制引用
李逸驰,孙国强,钱晓瑞,沈海平,卫志农,孙永辉..计及离散分布输入变量的电力系统概率潮流计算方法[J].电网技术,2015,(11):3254-3259,6.基金项目
国家自然科学基金项目(51277052，51107032，61104045)。 Project Supported by National Natural Science Foundation of China (51277052,51107032,61104045) （51277052，51107032，61104045）
