电力系统自动化2024，Vol.48Issue(3)：1-9,9.DOI:10.7500/AEPS20230728003
灵活性资源聚合参考模型与量化指标体系
Aggregation Reference Model and Quantitative Metric System of Flexible Energy Resources
摘要
Abstract
The penetration of high-proportion renewable energy brings significant volatility and uncertainty to power grids.Thus the receiving end of the power system faces the problem of insufficient adjustable resource capacity.It requires the full utilization of a large number of flexible energy resources to participate in power system dispatch and provide auxiliary services.However,the vast number,wide distribution,and diverse characteristics of these flexible energy resources pose significant challenges to centralized dispatch and control.It is necessary to manage and dispatch these flexible energy resources in a clustered way.To accurately assess the role of clusters in the power system dispatch and control,it is essential to aggregate these flexible energy resources and evaluate their performance by using appropriate quantitative metrics based on application requirements.According to the application demands of flexible resource clusters in power system dispatch and electricity market,a quantitative metric system of flexibility for evaluating the adjustable capacity of flexible energy resource clusters is proposed.Based on their physical characteristics,these resources are categorized into three types:generator-like characteristics,storage-like characteristics,and common characteristics.For quantitative evaluation of the cluster flexibility metrics across various application scenarios,an aggregation reference model comprising an equivalent generator and an equivalent energy storage is proposed.This aggregation reference model has a clear physical interpretation,exhibits nested properties,and therefore is suitable for various time scales and energy forms.It can be used to calculate the quantitative metrics for specific application scenarios and widely applied in scenarios such as asynchronous dispatch of distributed energy resource clusters,joint optimization dispatch of integrated energy systems,and participation of virtual power plant in electricity market bidding.关键词
灵活性资源/聚合参考模型/量化指标体系/高维多面体投影/电力系统Key words
flexible energy resource/aggregation reference model/quantitative metric system/high-dimensional polyhedron projection/power system引用本文复制引用
王思远,吴文传..灵活性资源聚合参考模型与量化指标体系[J].电力系统自动化,2024,48(3):1-9,9.基金项目
国家重点研发计划资助项目(极高渗透率分布式光伏发电自适应并网与主动同步关键技术,2022YFB2402900) （极高渗透率分布式光伏发电自适应并网与主动同步关键技术,2022YFB2402900）
国家自然科学基金资助项目(U2066601). This work is supported by National Key R&D Program of China(Key Techniques of Adaptive Grid Integration and Active Synchronization for Extremely High Distributed Photovoltaic Power Penetration Generation,No.2022YFB2402900)and National Natural Science Foundation of China(No.U2066601). （U2066601）
