| With the development of energy interconnection and multi-energy complementary technology,the coordinated optimization of the energy use management of power,gas and heat multi-energy systems containing clean energy has attracted extensive attention.The application of integrated energy system(IES)is of great significance to the economic operation of energy systems.Demand response(DR)has also become a research hotspot due to its advantages of saving energy costs and improving the economics of energy systems.In this context,the energy hub(EH)model including energy storage system and integrated electric vehicle(EV)is established.Due to the low carbon economy development,considering the pollutant trading market on total operating cost constraints.Firstly,based on the concept of an energy hub,the optimal operation strategy that target the minimizing purchase cost and emissions tax cost of the energy system is put forward.An energy hub optimal operation model of electric-gas-heat combined supply was constructed.Taken typical summer day as an example,the effects of pollutant trading market on pollutant emissions are comparative discussed.The economic benefit of the fixed mode and the response mode are compared,and the contribution of the energy storage device as well as the multi-energy complementary mode to energy utilization efficiency are discussed.sensitivity analysis demonstrates the impact of pollutant emission price change on emission reduction.Secondly,multiple energy hubs(MEHs)cooperative optimal operation is proposed,then the economic operation model of multiple energy hubs including renewable energy power generator and energy storage equipment is established,in order to achieve the complementary role of energy hus and improve the overall cooperation benefits.Aiming at the problem of periodic peak power load,this paper considered the responsiveness of electric vehicles,airconditioning refrigeration and energy storage(ES)devices on the demand side due to the electricity price incentive mechanism,especially the charging problem of electric vehicles in a limited period of time between different energy hubs,so as to realize the peak regulation of elastic loads and energy storage devices.Lastly,Secondly,according to the obtained operation results,the cost-benefit calculation model of each participant involved in the cooperation are further established.The contributions of participants to the unified planning after cooperation are different.How to allocate the planning cost and the distribute cooperation benefit fairly and reasonably is the key to maintaining the cooperation of MEHs and issue worthy of further exploration.Based on the cooperative game theory,the obtained costs and benefits are fairly allocated to each participant by Shapley method,and furthermore the propensity to disrupt index is introduced to analyze the tendency of each participant to cooperation under this allocation strategy.The allocation strategy is shown to be able to maintain the stability of the cooperative alliance.An example is given to analyze the single energy hub operation of the electric-gas-heat supply and the cooperative alliance containing three energy hubs.The mature commercial solver Gurobi is used to solve the problem.The results show that the established energy hub optimization model can coordinate various energy complementary modes reasonably.The proposed strategy is able to improve the operation economyof the energy hub and reduce pollutant emissions.The economics and effectiveness of the energy hub optimization operation model are verified.The cost and benefit of multi-energy hub cooperation.are calculated based on the Shapley method,the cost and benefit of participants are allocated,and the enthusiasm of this allocation strategy to maintain the stability of the cooperative alliance is verified. |
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