含电转气的电-气互联系统多目标优化调度  

Multi-objective Optimal Dispatch of Integrated Electricity and Natural Gas System with Power to Gas

作　　者：谈竹奎 瞿凯平 刘斌 王德志[2] 余涛[2] TAN Zhukui;QU Kaiping;LIU Bin;WANG Dezhi;YU Tao(Electric Power Research Institute of Guizhou Power Grid Co.,Ltd.,Guiyang 550002,China;School of Electric Power,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]贵州电网有限责任公司电力科学研究院,贵阳市550002 [2]华南理工大学电力学院,广州市510640

出　　处：《电力建设》2018年第11期51-59,共9页Electric Power Construction

基　　金：国家自然科学基金项目(51477055;51777078);中国南方电网公司重点科技项目(GZKJQQ00000419)~~

摘　　要：在"能源互联网"背景下,提出一种计及经济、碳排放和削峰填谷目标的电-气互联系统多目标优化调度模型,通过电转气装置和燃气轮机的相互配合,电-气互联系统可实现风电消纳能力提高,系统碳排放降低以及净电力负荷曲线平滑等目的。采用改进的广义法线边界交叉法求解电-气互联系统多目标优化调度模型的Pareto前沿,为调度人员提供多样化的决策解选择。此外,针对传统多目标决策方法没有计及目标间的相关性,而不能有效协调多维相互冲突的目标,提出一种马氏距离双基点法用于选取折中解,以提高多目标决策的科学性。最后,采用修改的IEEE 39节点电网与比利时20节点气网耦合的电-气互联系统为仿真算例,验证所提模型的优越性以及广义法线边界交叉法和马氏距离双基点法对此多目标优化调度问题的适用性。In the context of ‘energy Internet ＇,this paper proposes a multi-objective optimal dispatch of integrated electricity and natural gas system considering objectives of operation cost,carbon emissions and peak-load shifting. In the multi-objective optimal dispatch,P2 Gs（ power to gas） and gas turbines cooperate with each other to improve ability of the wind power accommodation,reduce carbon emissions and optimize net electric load curve. To handle this issue,an improved Pareto optimizer named generalized normal boundary intersection（ GNBI） is developed which can obtain an evenly and widely distributed Pareto front of multi-objective optimization. What＇s more,traditional multi-objective decision making methods usually ignore the correlation among objectives,which cannot fully coordinate multiple conflicting objectives. A Mahalanobis distance based double base points method is introduced to select a compromise solution for dispatchers. Finally,an integrated electricity and natural gas system with IEEE 39-node system and Belgian 20-node gas system is employed to verify the Superiority of Multi-objective optimal dispatch,as well as the applicability of GNBI and Mahalanobis distance based double base points method.

关 键 词：电-气互联系统 多目标优化调度 广义法线边界交叉法 马氏距离双基点法 电转气 

分 类 号：TM734[电气工程—电力系统及自动化]