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浙江大学学报(工学版)
浙江大学学报(工学版)  2021, Vol. 55 Issue (11): 2125-2133    DOI: 10.3785/j.issn.1008-973X.2021.11.013
能源与动力工程     
基于映射模型的城市热网热能输运灵活性研究
陈嘉映1(),李仲博1,2,林小杰1,3,*(),刘荣2,钟崴1,俞自涛1
1. 浙江大学 热工与动力系统研究所，浙江 杭州 310027
2. 北京市热力集团有限责任公司，北京 100028
3. 浙江大学常州工业技术研究院，江苏 常州 213022
Study of heat transportation flexibility in urban heating network based on mapping model
Jia-ying CHEN1(),Zhong-bo LI1,2,Xiao-jie LIN1,3,*(),Rong LIU2,Wei ZHONG1,Zi-tao YU1
1. Institute of Thermal Science and Power Systems, Zhejiang University, Hangzhou 310027, China
2. Beijing District Heating Group, Beijing 100028, China
3. Changzhou Industrial Technology Research Institute of Zhejiang University, Changzhou 213022, China
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摘要：

为了分析源荷不确定下的热网热能灵活输运问题，开展基于映射模型的城市热网热能输运灵活性研究. 采用机理建模与运行数据辨识结合的热网高精度映射建模方法，建立与物理热网行为特性一致的映射模型，通过模型特征参数估计，提高仿真计算精度. 同时，在此基础上提出量化分析热能输配灵活性的方法. 结合某北方城市热网开展多样化供需组合条件下的灵活性定量评估，并将该分析方法与现有管网可靠度理论进行对比. 对23个热力站开展灵活性与管网可靠度分析，对比结果表明，灵活性更侧重分析管网整体的灵活输运能力，可以用于管网输运瓶颈的分析，可靠度更侧重分析热网中元件本身的属性，可以用于管道容量及可靠性的分析. 该灵活性分析方法可以为提升热网调控灵活性奠定理论基础.
关键词： 城市热网;  集中供热系统;  映射模型;  输运灵活性;  供需平衡    
Abstract:

The theory of heat transportation flexibility in the urban heating network was developed based on the mapping model to analyze heat transportation flexibility with the uncertainty of source and load. Firstly, the high-precision mapping modeling technology combining mechanism model and data identification was adopted to establish the mapping model reflecting the operation characteristics of the actual heating system. The accuracy of simulation calculation was improved through model feature parameter estimation. Secondly, a quantitative method for the flexibility analysis of heat transportation was proposed on the above basis. Finally, flexibility evaluation in a heating network in a northern city under conditions of diverse supply and demand combinations was carried out. Moreover, the flexibility results were compared with that of the existing reliability theory of the pipe network. The flexibility and the reliability of 23 heating substations were analyzed, and results show that flexibility analysis focuses more on the overall flexible transport capacity of the network, which can be used to the analysis of the transport bottleneck. Reliability focuses more on analyzing the properties of the components in the heating network, which can be used to analyze the capacity and the reliability of the pipeline. Flexibility evaluation lays a preliminary theoretical foundation for improving the dispatch flexibility of heating network.
Key words: urban heating network    centralized heating system    mapping model    transportation flexibility    supply and demand balance
收稿日期: 2020-10-24 出版日期: 2021-11-05
CLC:  TK 11  
基金资助: 国家重点研发计划资助项目(2019YFE0126000)；国家自然科学基金资助项目(51806190)
通讯作者: 林小杰     E-mail: jiayingchen@zju.edu.cn;xiaojie.lin@zju.edu.cn
作者简介: 陈嘉映(1994—)，女，博士生，从事城市集中热系统的灵活性研究. orcid.org/0000-0002-1055-0423. E-mail: jiayingchen@zju.edu.cn
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引用本文:

陈嘉映,李仲博,林小杰,刘荣,钟崴,俞自涛. 基于映射模型的城市热网热能输运灵活性研究[J]. 浙江大学学报(工学版), 2021, 55(11): 2125-2133.

Jia-ying CHEN,Zhong-bo LI,Xiao-jie LIN,Rong LIU,Wei ZHONG,Zi-tao YU. Study of heat transportation flexibility in urban heating network based on mapping model. Journal of ZheJiang University (Engineering Science), 2021, 55(11): 2125-2133.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2021.11.013    或    https://www.zjujournals.com/eng/CN/Y2021/V55/I11/2125

图 1  热能输运灵活性评估流程
图 2  热网热能输运过程原理示意图
图 3  基于有限观测量点的热网特征参数辨识
图 4  热网映射模型的构建方法
图 5  目标热网拓扑结构
图 6  供水压力实测值与计算值对比
图 7  回水压力实测值与计算值对比
图 8  供回水压力实测值与计算值误差统计
图 9  热网灵活性分布
图 10  热网管道可靠度
图 11  热网管道可靠度分布
图 12  热网局部管道编号分布图
IDp2 Rp IDp11 Rp
93 0.998 238 0.998
92 0.999 239 0.995
91 0.999 240 0.997
90 0.993 241 0.998
89 0.998 51 0.990
88 0.954 50 0.979
87 0.988 49 0.999
86 0.978 48 0.973
85 0.996 47 0.995
84 0.998 46 0.997
表 1  2号热力站和11号热力站上游管道可靠度
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