电热协同互补提升电网灵活性的评估及仿真  

Evaluation and Simulation of Grid Flexibility Improvement by Electric-Thermal Complement

作　　者：赖业宁[1,2,3] 张政 薛峰 谢东亮[1,2] 蔡林君 宋晓芳[1,2,3] LAI Yening;ZHANG Zheng;XUE Feng;XIE Dongliang;CAI Linjun;SONG Xiaofang(NARI Technology Co.,Ltd.,Nanjing 211106,China;NARI Group Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China;State Key Laboratory of Smart Grid Protection and Control,Nanjing 211106,China)

机构地区：[1]国电南瑞科技股份有限公司,南京211106 [2]南瑞集团(国网电力科学研究院)有限公司,南京211106 [3]智能电网保护和运行控制国家重点实验室,南京211106

出　　处：《浙江电力》2022年第3期34-41,共8页Zhejiang Electric Power

基　　金：国家自然科学基金资助项目(U2066601)。

摘　　要：电热协同互补对于提升能源安全、克服长时储能能力的不足意义重大。从满足电网功率调节灵活性的需求出发,以蓄热式电采暖作为电热协同互补系统的代表,建立了描述其功率调节特性的模型;提出了蓄放热可行域的概念,进一步实现了灵活调节能力的量化评估。基于实际场景,分析测算了典型日大规模电热协同互补对系统预防停电和促进新能源消纳的提升效果,结果表明,配置大规模储热容器有利于实现电热解耦,提升电热协同参与调峰备用的能力。Electric-thermal complement is pivotal to improving energy security and overcoming the lack of longterm energy storage.Proceeding from meeting the demand of power regulation flexibility of the power grid,the paper takes regenerative electric heating as ta representative of the electric-thermal complementary system to establish a model reflecting the flexibility of its power regulation.Then,it proposes the concept of the feasible region of heat storage and release,and finally realizes the quantitative evaluation of the flexible regulation capacity.Based on practical scenarios,the paper analyzes and calculates the effect of large-scale electric-thermal complement on power outage prevention and new energy consumption enhancement on typical days.The results show that the allocation of the large-scale heat storage container is conducive to improving the capacity of electric-thermal coordination participating in reserve capacity regulation.

关 键 词：电热协同互补 蓄热式电采暖 需求侧响应 能量可行域 电网灵活性 

分 类 号：TM611[电气工程—电力系统及自动化]