考虑灵活性资源互济的虚拟电厂集群优化调度策略  

Optimization and Scheduling Strategy For Virtual Power Plant Clusters Considering Flexibility and Resource Complementarity

作　　者：王琦[1] 董洪达 贺子谦 聂凡杰 刘晓军[1] WANG Qi;DONG Hongda;HE Ziqian;NIE Fanjie;LIU Xiaojun(Key Laboratory of Modern Power System Simulation Control and Green Energy New Technology,Ministry of Education,Northeast Electric Power University,Jilin Jilin 132012;Jilin Electric Power Research Institute Co.,Ltd,Changchun Jilin 130000;State Grid Jincheng Power Supply Company,Jincheng Shanxi 048000;State Grid Panjin Power Supply Company,Panjin Liaoning 124000)

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),吉林吉林132012 [2]吉林省电力科学研究院有限公司,吉林长春130000 [3]国网晋城供电公司,山西晋城048000 [4]国网盘锦供电公司,辽宁盘锦124000

出　　处：《东北电力大学学报》2024年第5期101-111,共11页Journal of Northeast Electric Power University

基　　金：国家重点研发计划项目(2022YFB2404000)。

摘　　要：针对虚拟电厂集群(Virtual Power Plant Cluster,VPPC)运行过程中灵活性资源利用率低下所引起的系统运行灵活性不足问题,文中提出考虑灵活性资源互济的虚拟电厂集群优化调度策略。首先,基于VPPC与电力现货交易市场之间的交易关系,构建计及灵活性资源互济的VPPC交易模式。在此交易模式下,进一步分析源-荷不确定性场景下VPPC运行灵活性供需关系,并建立VPPC灵活性互济服务费用结算模型;其次,深入研究参与灵活性互济服务对下层各虚拟电厂间能量互动及上层集群经济运行的影响,构建了兼顾多主体利益的主从博弈双层优化模型,并采用基于Kriging元模型的主从博弈均衡算法模拟各虚拟电厂运行情况、制定虚拟电厂集群能量互济价格;最后,通过算例分析验证所提方案不仅能够使集群运营商赚取互济服务盈利,还降低了各虚拟电厂运行成本,大幅提高了系统整体的运行灵活性。Aiming at the lack of system operation flexibility caused by the low utilization rate of flexibility resources during the operation of virtual power plant cluster(VPPC),this paper proposes an optimal scheduling strategy for VPPC that takes into account the mutual benefit of flexibility resources.Firstly,based on the trading relationship between VPPC and the electricity spot trading market,a VPPC trading model is constructed in which VPPC counts and flexibility resources are mutually beneficial.Under this trading model,the supply-demand relationship between VPPC operating flexibility under the source-load uncertainty scenario is further analyzed with respect to the flexibility shortage phenomenon,and the VPPC flexibility mutual aid service fee settlement model is established.Secondly,the impact of participation in flexibility mutual aid service on the energy interaction between the lower virtual power plants and the economic operation of the upper cluster is studied in depth,and a two-layer optimization model of master-slave game is constructed to take into account the interests of multiple subjects,and a master-slave game equilibrium algorithm based on the Kriging meta-model is used to simulate the operation of each virtual power plant and reasonably formulate the price of mutual aid for the energy of virtual power plant clusters;lastly,the proposed solution can not only enable the cluster operator to earn a profit but also provide the cluster operator with a reasonable price for the energy of the cluster.Finally,it is verified through case studies that the proposed scheme not only enables the cluster operator to earn profits from the mutual aid service,but also reduces the power supply pressure on the power grid,lowers the operating costs of each virtual power plant,significantly improves the overall operational flexibility of the system and reduces the operating costs of all parties involved in the service.

关 键 词：虚拟电厂集群 灵活性互济服务 主从博弈 能源共享 Kriging元模型 

分 类 号：TM73[电气工程—电力系统及自动化]