基于灵活性供需平衡的电-气-热综合能源系统低碳调度  

Low Carbon Scheduling of Electricity-gas-heat Integrated Energy System Based on Flexibility Supply-demand Balance

作　　者：黄南天 胡晨晗 蔡国伟 王鹤霏 王昊[1] HUANG Nantian;HU Chenhan;CAI Guowei;WANG Hefei;WANG Hao(Key Laboratory of Moderm Power System Simulation and Control&Renewable Energy Technology(Ministry of Education Northeast Electric Power University),Jilin Jilin 132012)

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

出　　处：《东北电力大学学报》2024年第4期65-76,共12页Journal of Northeast Electric Power University

基　　金：国家重点基础研究发展计划(2022YFB2404002)。

摘　　要：氢能、光伏和风能等可再生能源是实现双碳目标与碳排放双控目标的重要途径,由可再生能源剧烈的发电波动,导致失负荷与弃电双重风险问题凸显,因此对能源系统的灵活性提出了更高的要求。文中提出基于灵活性量化的综合能源系统低碳调度模型。首先,分析多能耦合灵活性资源运行特性,进行综合能源系统灵活性资源模型构建,结合系统设备二氧化碳利用与排放情况,实现系统内部二氧化碳的深度利用;其次,考虑系统源-荷波动情况,进行园区级系统能量和坡度灵活性的量化分析;最后,结合系统灵活性资源的差异化调节特性,考虑不同时间尺度下系统灵活性供需差异,进行多时间尺度的调度,以平抑可再生能源及负荷不确定性带来的灵活性需求。文中以南方某综合能源工业园区为实验背景,采用文中所提出的方法进行分析调度,实现不同时间尺度下多种能源灵活性平衡,有利于提升综合能源电-气-热系统灵活性和低碳特性。Renewable energy sources such as hydrogen,photovoltaics,and wind energy are important ways to achieve the dual carbon goals and carbon emission control goals.Due to the significant fluctuations in renewable energy generation,the dual risks of load loss and power abandonment are highlighted,which puts higher demands on the flexibility of energy systems.This article proposes a low-carbon scheduling model based on flexibility quantification for a high proportion renewable energy integrated energy system.Firstly,analyze the operational characteristics of flexible resources in multi energy coupled equipment,construct a comprehensive energy system flexible resource model,and combine the utilization and emission of carbon dioxide in system equipment to achieve deep utilization of carbon dioxide within the system;Secondly,considering the source load fluctuation of the system,combined with the quantitative difference in flexibility between the integrated energy system and the power system,the quantitative analysis of energy,power,and slope flexibility of the park system is achieved;Finally,combining the differentiated regulation characteristics of system flexibility resources with the supply-demand differences of system flexibility at different time scales,multi time scale scheduling is carried out to mitigate the flexibility requirements brought about by the uncertainty changes of renewable energy and small time scales of load.This article takes a comprehensive energy industrial park in the south as the experimental background,and uses the method proposed in this article to analyze and schedule,verifying the power and electricity balance of flexible resources at different time scales,which is conducive to improving the flexibility and low-carbon characteristics of the comprehensive energy electricity-gas-heat system.

关 键 词：灵活性 综合能源系统 多时间尺度 二氧化碳深度利用 

分 类 号：TM73[电气工程—电力系统及自动化]