电力系统自动化Issue(21)：11-17,7.DOI:10.7500/AEPS20150611006
计及相关性的电-气互联系统概率最优潮流
Probabilistic Optimal Power Flow of Combined Natural Gas and Electric System Considering Correlation
摘要
Abstract
To alleviate environmental pollution,it has become a tendency for energy structure adjustment that natural gas is taking the place of coal.The tight coupling of natural gas system with power system is even strengthened by the proposition of the “Energy Internet".Traditionally,neglect of the influence of the power system-oriented optimal power flow under the constraints for natural gas system safe operation can lead to an over-optimistic solution.A combined natural gas and electric optimal power flow model is proposed with minimized total cost as the objective while considering all constraints on both systems.To tackle the uncertainty as well as correlation with input variables,a three point estimate method based on Nataf transformation is adopted.Finally,the model is verified on a modified IEEE 39-bus system and modified Belgian 20-bus natural gas system.Different volatility levels and correlations are analyzed.关键词
天然气系统/电-气互联系统/相关性/点估计/概率最优潮流Key words
natural gas system/combined natural gas and electric system/correlation/point estimate/probabilistic optimal power flow引用本文复制引用
孙国强,陈霜,卫志农,陈胜,李逸驰..计及相关性的电-气互联系统概率最优潮流[J].电力系统自动化,2015,(21):11-17,7.基金项目
国家自然科学基金资助项目(51277052,51107032,61104045)。@@@@This work is supported by National Natural Science Foundation of China(No.51277052,No.51107032,No.61104045) （51277052,51107032,61104045）
