Research On Optimal Dispatch Of Integrated Energy System Considering Hydropower Hydrogen Productio

Against the backdrop of global climate change,energy transformation has become a common focus of society in order to solve the existing problems of energy depletion and environmental pollution,and to achieve the "double carbon" strategic goal.As a green and low-carbon renewable energy source with relatively mature development and technology,the installed capacity of hydropower is increasing year by year,but the problem of water abandonment is also becoming more and more prominent.With the policy of developing green and clean energy in accordance with local conditions,and considering the favourable conditions of hydropower resources endowment and the clean,efficient and low-carbon characteristics of hydrogen energy in China,the use of abandoned water for hydrogen production in an integrated energy system will bring new opportunities and strengths to the development of the energy sector,which can not only alleviate the abandonment problem but also promote the development of green hydrogen energy industry.Based on the above background,this paper takes an integrated energy system with hydrogen production from hydropower as the research object,and starts the research from three aspects:integrated energy system framework system and mathematical modelling,integrated energy system operation optimization with green hydrogen energy certificate trading,and integrated energy system optimization and scheduling of hydrogen production from hydropower considering uncertainty.The main research work of this paper is as follows.(1)Integrated energy system framework system and mathematical modelling;the integrated energy system can realize the complementary coupling between multiple energy sources,based on the operating characteristics of each unit of the integrated energy system,the framework system and mathematical model of the integrated energy system containing hydrogen production from hydropower are built;in addition,combined with the development direction of green energy,according to the supply and demand relationship between the green hydrogen energy certificates in the hydropower hydrogen production company and the hydrogen sales company,a model based on The model of green hydrogen energy certificate trading based on combined two-way auction.(2)An IES operation optimization model considering the two-way auction trading mechanism of green hydrogen energy certificates was established;on the basis of the integrated energy system optimization model containing hydrogen production from hydropower,an IES operation optimization model considering the two-way auction trading mechanism of green hydrogen energy certificates was constructed by combining PCDA and the green hydrogen energy certificate trading mechanism.The validity of the model’s participation in optimal scheduling was verified through arithmetic simulation.(3)A model for optimal dispatching of hydropower hydrogen generation integrated energy system taking into account uncertainty is established.In order to further discuss the impact of uncertainty in hydropower output and load demand on hydropower hydrogen generation integrated energy system in actual operation,an IGDT-based model for optimal dispatching of hydropower hydrogen generation integrated energy system is constructed by introducing information gap decision theory.The simulation results verify the effectiveness and superiority of the IGDT scheduling model,reveal the influence of uncertainty on the scheduling model under the opportunity seeking strategy and risk avoidance strategy,and provide reference and reference implications for subsequent related research work.