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Enhanced design of an offgrid PV-battery-methanation hybrid energy system for power/gas supply
Xu, Xiao Hu, Weihao Cao, Di Liu, Wen Huang, Qi Hu, Yanting Chen, Zhe
Xu, Xiao
Hu, Weihao
Cao, Di
Liu, Wen
Huang, Qi
Hu, Yanting
Chen, Zhe
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EPub Date
Publication Date
2020-11-28
Submitted Date
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Abstract
Extensive studies have been carried out on various hybrid energy systems (HESs) for providing electricity to off-grid areas. However, a standalone HES that is capable of providing power and gas, has been less studied. In this paper, a standalone Photovoltaic (PV)-battery-methanation HES is proposed to provide adequate, reliable and cost-effective electricity and gas to the local consumers. Identifying a potential solution to maximize the reliability of the system, asked by consumers, and to minimize costs required by the investors is challenging. Bi-level programming is adopted in this study to tackle the pre-mentioned issue. In the outer layer, an optimal design is obtained by means of particle swarm optimization. In the inner layer, an optimal operation strategy is found under the optimal design of the outer layer using sequential quadratic programming. The results indicate that 1) The bi-level programming used in this study can find the optimal solution; 2) The proposed HES is proved to be able to supply power and gas simultaneously. 3) Compared with the right most and leftmost points on Pareto set, the total costs are reduced by 17.77% and 2.16%.
Citation
Xu, X., Hu, W., Cao, D., Liu, W., Huang, Q., Hu, Y., & Chen, Z. (2021). Enhanced design of an offgrid PV-battery-methanation hybrid energy system for power/gas supply. Renewable Energy, 167, 440-456.
Publisher
Elsevier
Journal
Renewable Energy
Research Unit
DOI
10.1016/j.renene.2020.11.101
PubMed ID
PubMed Central ID
Type
Article
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Description
Series/Report no.
ISSN
0960-1481
EISSN
1879-0682