基于动态运行包络的多微网合作运行方法  

Multi-microgrids cooperative operation method based on dynamic operating envelopes

作　　者：张栋梁[1] 魏奇 赵阳[1] 王强 薛雪[1] ZHANG Dongliang;WEI Qi;ZHAO Yang;WANG Qiang;XUE Xue(School of Electrical Engineering,China University of Mining and Technology,Xuzhou 221116,China;Lianyungang Power Supply Company,State Grid Jiangsu Electric Power Company Limited,Lianyungang 222000,China)

机构地区：[1]中国矿业大学电气工程学院,江苏徐州221116 [2]国网江苏省电力有限公司连云港供电分公司,江苏连云港222000

出　　处：《电力系统保护与控制》2025年第6期51-62,共12页Power System Protection and Control

基　　金：江苏省碳达峰碳中和科技创新专项资金资助(BE2022609);徐州市“双碳”专项基础研究(KC23076)。

摘　　要：多能微网间的联网协作可以缓解分布式发电与需求不匹配的问题,降低电力系统的运行成本。现有的微网合作方法往往忽略了底层配电网运行的网络约束,难以适用于实际系统。为此,提出一种基于动态运行包络(dynamic operating envelopes,DOEs)的多微网纳什议价模型。首先,建立配电网及具有多种能量形式的微网模型。其次,根据配电网最优潮流在不同时间动态设置微网进出口限制,计算DOEs并将其分配给不同微网。最后,微网内部的异质能在原微网调度策略的目标函数和约束条件下加入DOEs约束进行优化,按照纳什议价策略使所有参与的微网进行交易。算例结果表明所提模型能够将配电网与微网所做的决策解耦,配电网通过DOEs保证网络完整性,而不直接控制微网间的交易。并且通过优化电量交易,促进了微网内部异质能之间的互补,提高了能源利用率。Interconnection and cooperation between multi-energy microgrids can alleviate the mismatch between distributed generation and demand,and reduce the operating costs of the power system.Existing microgrid cooperation methods often overlook the network constraints of the underlying distribution network operation,making them difficult to apply to real systems.Therefore,a multi-microgrid Nash bargaining model based on dynamic operating envelopes(DOEs)is proposed.First,a distribution network and a microgrids model incorporating multiple energy forms are established.Second,based on the optimal power flow of the distribution network,the import and export limits of microgrids are dynamically set at different times,while DOEs are calculated and assigned to different microgrids.Finally,the heterogeneous energy within each microgrid is optimized by incorporating DOEs constraints into the original microgrid scheduling objective function and constraints,and transactions between participating microgrids are carried out using the Nash bargaining strategy.Case study results show that the proposed model is able to decouple the decisions made by the distribution grid and microgrids,and the distribution grid ensures its integrity through DOEs without directly controlling the transactions among the microgrids.In addition,by optimizing the electricity transactions,the model promotes the complementarity among heterogeneous energies within the microgrids and improves the energy utilization rate.

关 键 词：多能微网 网络约束 动态运行包络 最优潮流 纳什议价 

分 类 号：TM7[电气工程—电力系统及自动化]