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Two-layer Optimal Scheduling of Microgrids Considering Liquid CO2 Energy Storage under Carbon Trading Mechanism
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Zilong LI  Student Member, CPSS, Honghai KUANG  Member, CPSS, Yuhao XU, Jun WANG
Journal of Power Supply | 2026, 24(3) : 100 - 110
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Journal of Power Supply | 2026, 24(3): 100-110
• Renewable Energy Generation and Energy Storage •
Two-layer Optimal Scheduling of Microgrids Considering Liquid CO2 Energy Storage under Carbon Trading Mechanism
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Zilong LI  Student Member, CPSS, Honghai KUANG  Member, CPSS, Yuhao XU, Jun WANG
Affiliations
  • School of Transportation and Electrical Engineering, Hunan University of Technology, Zhuzhou 412007, China
Published: 2026-03-30 doi: 10.13234/j.issn.2095-2805.2026.3.100
Outline
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To reduce the carbon emissions of a microgrid system under operation and with the consideration of influences of uncertainties in renewable energy output on the system’s scheduling results, a two-layer optimal low-carbon economic scheduling model for microgrids containing liquid carbon dioxide (CO2) energy storage is proposed. This model introduces a tiered carbon trading mechanism into the operation and scheduling stage of the system, so as to reduce carbon emissions of the microgrid system. Under a carbon trading scenario, the carbon emissions and scheduling cost data generated by two models of liquid CO2 energy storage and conventional energy storage during the operation of microgrids are compared and analyzed, and results verify that the proposed model can effectively reduce carbon emissions and improve the economic efficiency after the introduction of liquid CO2 energy storage.

Microgrid  /  liquid carbon dioxide (CO2) energy storage  /  carbon trading mechanism  /  two-layer optimization  /  uncertainty
李子龙中国电源学会学生会员, 匡洪海中国电源学会会员, 徐雨淏, 王俊. 碳交易机制下考虑液态CO2储能的微电网双层优化调度. 电源学报, 2026 , 24 (3) : 100 -110 . DOI: 10.13234/j.issn.2095-2805.2026.3.100
Zilong LI, Honghai KUANG, Yuhao XU, Jun WANG. Two-layer Optimal Scheduling of Microgrids Considering Liquid CO2 Energy Storage under Carbon Trading Mechanism[J]. Journal of Power Supply, 2026 , 24 (3) : 100 -110 . DOI: 10.13234/j.issn.2095-2805.2026.3.100
Funding
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  • Hunan Natural Science Foundation(2023JJ50176)
  • Key Project of Department of Education of Hunan Province(23A0441)
Appendix
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Year 2026 volume 24 Issue 3
25
6
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.3.100
  • Receive Date：2023-10-09
  • Online Date：2026-10-29
  • Published：2026-03-30
Article Data
Affiliations
History
  • Received：2023-10-09
  • Revised：2024-01-08
  • Accepted：2024-01-20
Funding
Hunan Natural Science Foundation(2023JJ50176)
Key Project of Department of Education of Hunan Province(23A0441)
Affiliations
    School of Transportation and Electrical Engineering, Hunan University of Technology, Zhuzhou 412007, China
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