| With the rapid development of the economy,energy shortages and environmental pollution caused by the industrialization process have gradually become issues that cannot be ignored.Integrated energy service company with multiple energy supply services integrates energy information from both supply and demand sides,mobilizes various entities to participate in energy conservation,emission reduction,and optimization of energy efficiency,bringing new opportunities and challenges to promote green and low-carbon energy transformation.Based on this,this article mainly studies the low-carbon optimization operation of the integrated energy service company based on the life cycle assessment and the low-carbon optimization operation strategy of multiple integrated energy service companies under the bi-level game framework.The main tasks are as follows:Firstly,the infrastructure framework and related models of the integrated energy service company is studied.Various energy coupling devices in the integrated energy service company are analyzed,and in the meanwhile,this paper introduces distributed new energy units,energy storage units,and demand management units to promote energy conservation and emission reduction,and improve energy consumption capacity.Based on this,the operational structure of integrated energy service company is established.Subsequently,the concept of energy hub is introduced to describe the source-network-load links of the integrated energy service company in a matrix,and an energy hub model for the integrated energy service company is established.Secondly,in order to address the issue of carbon emission measurement among integrated energy service companies,an integrated energy service company optimization low-carbon operation model based on the life cycle assessment is established.To comprehensively consider direct and indirect carbon emissions,life cycle assessment theory is introduced and an improved carbon emission measurement model for different equipment in the energy chain is proposed.By utilizing the carbon rights trading mechanism under the tiered carbon price,the low-carbon target is integrated into the optimization operation,and an integrated energy service company low-carbon optimization operation model for measuring carbon emissions throughout the entire energy chain is established.Through numerical simulation,it is verified that the proposed carbon emission measurement model can effectively improve low-carbon operation,and by setting a reasonable carbon trading price,the energy conservation and emission reduction efforts will be maximized.Finally,on the basis of the low-carbon operation model of integrated energy service companies,considering the energy-saving and emission reduction potential of multiple integrated energy service companies after cooperation and interconnection,a low-carbon optimization operation model of multiple integrated energy service companies based on a bi-level game is proposed.The upper layer fully considers the potential of user side load interaction,and proposes an incentive integrated demand response strategy under flexible and adjustable proportional load.The lower level considers the carbon reduction potential of multiple integraed energy service companies in the energy cooperation and sharing mechanism,a low-carbon optimization operation model for multiple energy service companies based on cooperative game is established,and uses distributed algorithms to solve the optimal strategy.Through numerical simulations,it is verified that the proposed bi-level game strategy can promote information exchange between supply and demand sides,achieve energy mutual aid transactions under cooperative modes,and effectively improve low-carbon and flexible operation. |