Aggregate power flexibility of multi-energy systems supported by dynamic networks

被引：7

作者：

Li, Hengyi ^{[1
]}

Qin, Boyu ^{[1
]}

Wang, Shihan ^{[1
]}

Ding, Tao ^{[1
]}

Liu, Jialing ^{[1
]}

Wang, Hongzhen ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian, Peoples R China

来源：

APPLIED ENERGY | 2025年 / 377卷

基金：

中国国家自然科学基金;

关键词：

Multi-energy system; Flexibility evaluation; Robust optimization; Dynamic network; Uncertainty; INTEGRATED POWER; DISPATCH; STRATEGY; MODEL; HEAT; FLOW;

D O I：

10.1016/j.apenergy.2024.124565

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The multi-energy system, encompassing electricity networks, district heating networks (DHNs), and hydrogen- enriched compressed natural gas (HCNG) networks, provides an alternative for promoting intermittent renewable energy accommodation and enhancing operational flexibility. This paper investigates the aggregate flexibility of the multi-energy system based on dynamic network models and admissible power fluctuation regions of decomposed subsystems. The dynamic processes within HCNG networks/DHNs are analyzed, and the inner-box method is employed to approximately quantify the individual flexibility of the dynamic networks. Furthermore, the optimal dispatchable regions of decomposed subsystems, accounting for internal gas/heating load uncertainties, are evaluated based on distributionally robust optimization. Through distribution-level power aggregation, the flexibility of the multi-energy system is quantified utilizing geometric methods. Numerical results on two test systems verify the effectiveness of the proposed methodology.

引用

页数：11

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