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Aggregate power flexibility of multi-energy systems supported by dynamic networks
被引:0
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:
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.
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页数:11
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