中国电力2025，Vol.58Issue(12)：50-62,13.DOI:10.11930/j.issn.1004-9649.202508045
DLMP信号驱动的配电网分布式资源可定向内近似聚合调度方法
DLMP Signal-Driven Orientated Inner Approximation Aggregation Scheduling Method for Distributed Resources in Distribution Networks
摘要
Abstract
To fully tap the flexible scheduling potential of distributed resources and address the volatility challenges brought by the large-scale integration of new energy into the distribution networks,this study proposes a distribution locational marginal price(DLMP)signal-driven orientated inner approximation(OIA)-based aggregation optimization scheduling method for distributed resources in distribution networks.Firstly,the aggregation direction is guided by minimizing the operating cost,and a small amount of feasible region space is selectively sacrificed during the OIA aggregation process to obtain higher-quality solutions,which overcomes the limitation of existing maximum inner approximation-based aggregation methods that pursue the maximization of feasible regions while ignoring the optimality of scheduling objectives.Meanwhile,a bi-level cooperative operation optimization framework between distribution network operators and load aggregators is proposed:the upper-level distribution network operator conducts the optimization scheduling with the goal of minimizing the total operation cost,including the power purchase cost of the distribution network and the wind/solar curtailment costs,and calculates the DLMP through Lagrange relaxation,which reflects the supply-demand balance status and operating costs of the distribution network from both spatial and temporal dimensions;the lower-level load aggregator receives the DLMP signal and updates the power consumption plans of distributed resources such as electric vehicles,variable-frequency air conditioners,and user-side energy storage within the cluster feasible region obtained by OIA aggregation,aiming to minimize the power consumption cost of agent users.The two parties use the DLMP signals as the medium for cooperative optimization,ultimately achieving the dual goals of secure and economic operation of distribution network and tapping the flexible potential of distributed resources.Case studies based on the IEEE 33-bus system show that the proposed method effectively guides the balances load distribution of the distribution network,reduces the power consumption cost of users represented by load aggregators,and lowers the network loss,node voltage deviation,and operating cost of the distribution network.关键词
新型配电网/分布式资源/聚合优化/可定向内近似/节点边际电价/双层优化Key words
new distribution network/distributed resources/aggregation optimization/orientated inner approximation/distribution locational marginal price/bi-level optimization引用本文复制引用
QIAO Li,YAO Wei,WEN Jinyu,MO Shi,GUO Mingyu,CUI Shichang,ZHANG Zitong,WANG Bo,AI Xiaomeng,FANG Jiakun,CAO Yuancheng..DLMP信号驱动的配电网分布式资源可定向内近似聚合调度方法[J].中国电力,2025,58(12):50-62,13.基金项目
国家电网有限公司科技项目(SGHBJYOOPSJS2400060K) （SGHBJYOOPSJS2400060K）
国家自然科学基金资助项目(52207108). This work is supported by Science and Technology Project of SGCC(No.SGHBJYOOPSJS2400060K),National Natural Science Foundation of China(No.52207108). （52207108）
