Diverse modeling methods for energy hubs in integrated energy systems and their typical applications

doi:10.3969/j.issn.2097-0706.2023.07.003

Abstract

Abstract:

Under the background of "dual carbon"， the planning and operation of an integrated energy system （IES） is faced with new requirements on various evaluation indicators， such as effective energy utilization rate， energy unavailability and carbon emission level. In this context， selecting appropriate analytical elements and establishing their mechanism models has become an important task in IES research. An energy hub plays a key role in energy transmission and conversion in an IES， determining the distribution of energy and profoundly affecting the energy supply of the system from the perspective of multidimensional evaluation. Therefore， how to construct a multi-element model of an energy hub has become a key issue in IES analysis. The modeling methods of energy hubs with four modeling elements are analyzed， and their mechanisms and the applicability to match the development of energy systems are studied. The study provides references for following theoretical researches and practical applications.

Key words: integrated energy system, evaluation index, effective energy, energy disorder, carbon emission, energy hub, carbon neutrality

CLC Number:

TK01

LI Yizhe, WANG Dan, JIA Hongjie, ZHOU Tianshuo, CAO Yitao, ZHANG Shuai, LIU Jiawei. Diverse modeling methods for energy hubs in integrated energy systems and their typical applications[J]. Integrated Intelligent Energy, 2023, 45(7): 22-29.

Figures/Tables 7

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要素	模型类别	特征与共性	应用价值
能量	传统能量枢纽能量模型	非线性方程，内部抽象化	提升供需匹配经济性、安全性、可靠性、灵活性
	基于状态参数矩阵能量枢纽能量模型	线性方程，内部部分描述
	基于标准化矩阵的能源枢纽能量模型	线性方程，内部完整描述
㶲	传统能量枢纽有效能模型	非线性方程，二端口抽象化	提升品质能源利用效率，有助于量、质协同优化
㶲	基于标准化矩阵能量枢纽有效能模型	线性方程，内部完整描述	提升品质能源利用效率，有助于量、质协同优化
熵增	大节点型能量枢纽熵态模型	线性方程，忽略内部结构	传统能源与可再生能源协同、高质量供能
熵增	基于标准化矩阵能量枢纽熵态模型	线性方程，内部完整描述	传统能源与可再生能源协同、高质量供能
碳排放	无损的能量枢纽碳排放模型	线性方程，内部部分描述	有助于科学、合理地促进低碳转型
	有损大节点型的能量枢纽碳排放模型	线性方程，忽略内部结构
	有损矩阵型能量枢纽碳排放模型	非线性方程，二端口抽象化