计及蓄热罐与管网虚拟储能热电联供系统的经济运行优化分析  

Economic-operation Optimization Analysis of Combined Heat and Power System with Considering Heat Storage Tank and Pipe-network Virtual Energy Storage

作　　者：杨庆川 陈美端 余小兵[1] 薛晨晰 李洪瑞 吴闯 卿绍伟[3,4] YANG Qing-chuan;CHEN Mei-duan;YU Xiao-bing;XUE Chen-xi;LI Hong-rui;WU Chuang;QING Shao-wei(Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an 710054,China;Hua'neng Luoyang Thermoelectric Co.,Ltd,Luoyang 471203,China;Key Laboratory of Low-grade Energy Utilization Technologies and Systems,Chongqing University,Chongqing 400044,China;School of Energy and Power Engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]西安热工研究院有限公司,陕西西安710054 [2]华能洛阳热电有限责任公司,河南洛阳471023 [3]重庆大学低品位能源利用技术及系统教育部重点实验室,重庆400044 [4]重庆大学能源与动力工程学院,重庆400044

出　　处：《节能技术》2024年第5期449-457,共9页Energy Conservation Technology

基　　金：国家重点研发计划(2022YFC3802402);西安热工研究院有限公司科技项目(ZC-23-TYK21)。

摘　　要：本文建立计及蓄热罐与管网虚拟储能热电联供系统模型,探讨不同储能装置配置(如无储能装置、含虚拟储能、含蓄热罐、含蓄热罐与虚拟储能)下负荷场景、燃煤价格、管网长度对系统运行成本的影响。结果表明:含蓄热罐与虚拟储能的储能配置使得热电联供系统的运行成本大幅降低,且当热电负荷波动较大时,运行成本降幅更大,如工业负荷场景下降幅达26.12%;燃料价格上涨使得系统运行成本线性增加,但相比于无储能装置,含储能装置系统的运行成本仍然较低,经济性更好;由于管网储能容量限制以及管网热损的影响,存在一个最佳管长使得系统运行成本最小。In this paper,a model of combined heat and power(CHP)system with considering heat storage tank and pipe-network virtual energy storage is established,and the effects of load scenario,coal price and pipe-network length on the operating cost of the CHP system under different energy storage device configurations(such as no energy storage device,with virtual energy storage,with heat storage tanks,with heat storage tanks and virtual energy storage)are discussed.The results show that:the energy storage configuration with thermal storage tanks and virtual energy storage significantly reduces the operating cost of the CHP system,and the reduction in operating cost is greater when the thermal and electrical load fluctuates significantly,e.g.,the reduction amplitude reaches 26.12%under industrial load condition;The increase in fuel price leads to a linear increase in system operating cost,but compared to the CHP system without energy storage device,the system with energy storage device still have lower operating costs and better economic efficiency;Due to the limit of pipeline-network heat storage capacity and the effect of pipeline-network heat loss,there is an optimal pipe length that minimizes the operating cost of the CHP system.

关 键 词：热电联供 蓄热罐 虚拟储能 储能 经济调度 

分 类 号：TK02[动力工程及工程热物理]