Economic dispatch of multi-energy system considering seasonal variation based on hybrid operation strategy

A modeling framework of a multi-energy system (MES) with coordinated supply of combined cooling, heating and power using solar energy is established in this research. A new operation strategy named following operation cost (FOC) is proposed to compare with traditional operational modes which are fol...

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Bibliographic Details
Published in:Energy (Oxford) 2022-01, Vol.238, p.121733, Article 121733
Main Authors: Zhao, Xin, Zheng, Wenyu, Hou, Zhihua, Chen, Heng, Xu, Gang, Liu, Wenyi, Chen, Honggang
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon dioxide emissions
Cost analysis
Electrical loads
Energy consumption
Following electric load
Following operation cost
Following thermal load
Hybrid operation strategy
Multi-energy system
Power dispatch
Seasonal variation
Seasonal variations
Solar energy
Thermal analysis
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Summary:A modeling framework of a multi-energy system (MES) with coordinated supply of combined cooling, heating and power using solar energy is established in this research. A new operation strategy named following operation cost (FOC) is proposed to compare with traditional operational modes which are following electric load (FEL) and following thermal load (FTL). The results indicate that the strategy of FOC has the advantage in saving operation cost. The study analyzes the three operation strategies from three criteria including the operation cost (OC), the carbon dioxide emission (CDE), and the primary energy consumption ratio (PER) in each season to find the most suitable hybrid operation strategy in the MES. For the MES of this paper, we choose the FEL strategy in winter, the FOC strategy in summer, spring, and autumn. The hybrid operation strategy is selected to make the MES have higher PER, lower CDE, and lower OC. The hybrid operation strategy has better comprehensive performance than the single operation strategy. It provides a reference for the operation mode of other MESs. •A novel operation strategy named following the operation cost (FOC).•Analyze FOC, FEL, and FTL strategies from OC, CDE, and PER in each season.•Compare features and defects of different strategies and choose the appropriate operation one.•The hybrid operation strategy has better comprehensive performance.
ISSN:0360-5442
1873-6785
DOI:10.1016/j.energy.2021.121733