计及热/气网等效电储能特性的综合能源系统储能容量配置

闫文涛; 王维庆; 李笑竹; 丁英

doi:10.19912/j.0254-0096.tynxb.2024-2006

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (6) : 19-31. DOI: 10.19912/j.0254-0096.tynxb.2024-2006

第二十七届中国科协年会学术论文

计及热/气网等效电储能特性的综合能源系统储能容量配置

闫文涛, 王维庆, 李笑竹, 丁英

作者信息 +

INTEGRATED ENERGY SYSTEM STORAGE CAPACITY CONFIGURATION CONSIDERING THERMAL/GAS NETWORK EQUIVALENT ELECTRICAL ENERGY STORAGE CHARACTERISTICS

Yan Wentao, Wang Weiqing, Li Xiaozhu, Ding Ying

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文章历史 +

摘要

为充分发挥综合能源系统多能协同、高效、清洁等优势,唤醒系统中未被利用的储能资源,提出计及热/气网等效电储能特性的综合能源系统（IES）储能容量配置方法。首先,基于有限元差分法、建筑物热惯性分析与系统热电联产（CHP）机组运行特性分析量化热网管道、建筑物、CHP的储热容量,并提出热网储热能力向储电容量转化的折算方法;其次,采用能量与动量守恒方程刻画天然气管道的动态特性,通过有限元仿真量化管道内气体管存并提出气网管存能力向储电容量转化的折算方法;在此基础上,构建IES中电储能容量优化配置模型,以减小储能投建规模与初期投资成本;最后,利用算例验证所提方法的可行性与竞争性,结果表明计及热/气网等效电储能特性可减少储能投资成本4.18%。

Abstract

To give full play to advantages of multi-energy synergy, efficiency, and environmental sustainability in integrated energy systems （IES） while tapping into underutilized energy storage resources, this paper proposes an energy storage capacity allocation method that accounts for the equivalent electrical storage characteristics of thermal and gas networks. Firstly, the thermal storage capacities of thermal networks, buildings, and combined heat and power（CHP） units are quantitatively analyzed using the finite element difference method, thermal inertia analysis, and CHP operational characteristics. A conversion method is then introduced to translate thermal storage capacity into equivalent electrical storage capacity. Secondly, the dynamic behavior of natural gas pipelines is modeled using energy and momentum conservation equations, and pipeline gas storage is quantified via finite element simulations. A conversion method is similarly proposed for translating gas network storage capacity into equivalent electrical storage capacity. Based on these considerations, an optimized allocation model for electrical energy storage in IES is developed to minimize energy storage investment size and initial costs. Finally, case studies validate the feasibility and competitiveness of the proposed approach, demonstrating that incorporating the equivalent electrical storage characteristics of thermal and gas networks reduces storage investment costs by 4.18%.

导出引用

闫文涛, 王维庆, 李笑竹, 丁英. 计及热/气网等效电储能特性的综合能源系统储能容量配置[J]. 太阳能学报. 2025, 46(6): 19-31 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2006

Yan Wentao, Wang Weiqing, Li Xiaozhu, Ding Ying. INTEGRATED ENERGY SYSTEM STORAGE CAPACITY CONFIGURATION CONSIDERING THERMAL/GAS NETWORK EQUIVALENT ELECTRICAL ENERGY STORAGE CHARACTERISTICS[J]. Acta Energiae Solaris Sinica. 2025, 46(6): 19-31 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2006

中图分类号： TK02

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