计及碳排放量约束的多区域互联电力系统分布式低碳经济调度  

Carbon Emissions Constraint Distributed Low-Carbon Economic Dispatch of Power System

作　　者：李军徽 邵岩 朱星旭[1] 郭琦 齐军[3] Li Junhui;Shao Yan;Zhu Xingxu;Guo Qi;Qi Jun(Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology Ministry of Education Northeast Electric Power University,Jilin 132012 China;Branch of Power Dispatching Control Inner Mongolia Power(Group)Co.Ltd,Hohhot 010020 China;Alxa Electirc Power Supply Company Inner Mongolia Power Group Co.Ltd,Alxa 750306 China)

机构地区：[1]现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学),吉林132012 [2]内蒙古电力(集团)有限责任公司电力调度控制分公司,呼和浩特010020 [3]内蒙古电力(集团)有限责任公司阿拉善供电分公司,阿拉善750306

出　　处：《电工技术学报》2023年第17期4715-4728,共14页Transactions of China Electrotechnical Society

基　　金：内蒙古自治区科学技术厅揭榜挂帅项目(2022JBGS0044);东北电力大学博士科研启动基金(BSJXM-2021102)资助。

摘　　要：针对多区域互联系统考虑全局不等式约束的低碳经济调度分布式求解问题,提出一种分布式低碳经济调度优化方法。首先,为实现多区域互联系统低碳化运行,利用互联系统碳排放量约束调控各区域中发电单元出力,构建低碳经济调度模型;随后,基于对偶理论和变量分解方法对多区域互联系统低碳经济调度模型进行分解,将低碳经济调度问题分解为与各区域相关的子问题,再利用交替方向乘子法(ADMM)搭建各区域协同优化求解框架;迭代求解过程中,通过迭代互联区域之间相邻单元或节点拉格朗日乘子信息的交换实现分布式低碳经济调度模型求解,该经济调度优化模型,在有效降低各区域间信息传递量、充分保障各区域单元信息隐私性要求的同时,满足优化区域“即插即用”的需求;最后,通过IEEE 6节点测试系统和72节点测试系统进行算例分析,验证了所提方法的有效性。In a multi-area interconnected power system,to meet the needs of emission reduction policies,carbon emission constraints can be added to the economic dispatch model to regulate the output of the unit and achieve low-carbon economic dispatch of the system.This method is the most common in centralized economic dispatch.Because centralized optimal dispatch requires great communication bandwidth and large computing and information storage requirements, distributed economic dispatch has become a research hotspot. In recent years, scholars have made some achievements in the research of distributed economic dispatch, but the methods involved can only solve the economic dispatch problem with a global equality constraint and several local constraints. For the economic dispatch problem with global inequality constraints, these methods are not applicable. Therefore, this paper proposes a new distributed low-carbon economic scheduling method. The proposed method can solve the economic scheduling problem with global equality constraints and global inequality constraints, which is more universal than the existing distributed economic scheduling methods. First, a low-carbon economic dispatch model is constructed to determine the objective function and the corresponding equality constraints and inequality constraints. Then, based on the duality principle, the original problem is transformed into a corresponding dual problem. Then, the dual problem model is decomposed by the variable decomposition method, so that the objective function and constraints are transformed into optimization sub-problems related to a single region. Finally, based on ADMM, an iterative solution framework for the collaborative optimization of each region is designed. To improve the convergence of the algorithm and avoid the problem of penalty factor parameter selection, a dynamic multiplier update strategy is adopted. The emission reduction factor is set at 15%. According to the method proposed in this paper, the IEEE 6 node test system and the 72-node te

关 键 词：多耦合约束 碳排放量约束 分布式经济调度 对偶理论 变量分解 交替方向乘子法(ADMM) 

分 类 号：TM73[电气工程—电力系统及自动化]