Research On The Operation Mode And Optimization Scheduling Strategy Of New Energy Hydrogen Production Under Market Environmen

As global warming continues to intensify,carbon emissions from the energy industry are becoming more and more serious.Therefore,promoting the development of clean energy and building a more environmentally friendly,sustainable and low-carbon energy system has become an important task for “carbon peaking and carbon neutral”.With the continuous progress of technology,new energy generation has become a sustainable energy source with zero carbon emissions,and it will become an important direction for power system development,and is expected to achieve 48% of power generation by 2030.In the scenario where a high percentage of new energy is connected to the grid,electrolytic water hydrogen production technology can make up for the defects of low energy density,poor stability and low safety of grid connection of new energy generation on the one hand,and solve the problems of low capacity and long-term storage of traditional battery on the other hand,which is important for the stable operation of power system and flexible consumption of new energy.Although the current cost of electrolytic water hydrogen production is high,it can greatly reduce its cost and improve its profitability by exploring new investment and operation and profitability modes,thus providing important support for the popularization and development of new energy electrolytic water hydrogen production.Based on the above background,this paper takes new energy hydrogen production as the research object,studies different investment and operation modes and optimal scheduling strategies under the new energy hydrogen production market environment,and measures the economic benefits of new energy hydrogen production under different operation modes to verify the feasibility of the proposed business model.The specific research contents are as follows:(1)The operation mode and optimal dispatching strategy of a large wind farm with independent investment in the construction of electrolytic water hydrogen production plant are studied.Firstly,a refined operation model of alkaline electrolytic water hydrogen production plant is constructed through an in-depth analysis of the power-efficiency characteristics of alkaline electrolytic water hydrogen production plant;secondly,an economic optimal dispatching model of power system based on wind power hydrogen production is constructed by taking into account the investment cost of alkaline electrolytic water hydrogen production plant and adopting the best benefit function;finally,the feasibility,cost-effectiveness and feasibility of investing in the construction of electrolytic water hydrogen production plant in large wind farms are evaluated through simulation analysis.Finally,the feasibility and cost-effectiveness of investing in the construction of electrolytic water hydrogen plant in large wind farms are evaluated through simulation analysis.(2)Under the current market environment,a single entity investing in the construction of expensive large-scale P2 G plants may face problems such as low equipment utilization,high depreciation cost,and insufficient profitability;therefore,this paper proposes a new model,i.e.,multi-party joint venture construction and operation of P2 G plants.First,a windlight-fire-P2 G cooperative operation system architecture including new energy hydrogen production and carbon capture is constructed under the multijoint venture model,and the corresponding equipment operation model is established;furthermore,the influence of the equity ratio of the initial investment of each subject on the profit distribution is considered,and the improved Shapley value method is used to account for the operation cost and profit distribution;finally,a day-ahead optimal scheduling is established with the overall optimum of the joint venture alliance as the Finally,a day-ahead optimal scheduling model is established with the objective of overall optimality of the joint venture alliance to improve operational efficiency and reduce operational costs.The excellence of the proposed P2 G equipment joint venture operation model is experimented through simulation.(3)Considering that the long-distance hydrogen transportation is not yet economically feasible,the distributed and small-scale hydrogen production will usher in a rapid development opportunity in the future,and the hydrogen energy system will be characterized by various hydrogen production methods,scattered locations and difficult management.To this end,a model of integrated and cooperative operation of hydrogen energy system based on virtual hydrogen plant is established,and a joint operation model of wind power-VHP and optimal scheduling strategy based on Nash negotiation theory are proposed.The concept of VHP is proposed and an integrated model of hydrogen energy system is established,which takes into account the synergistic operation of production-storage-usage.On this basis,taking into account the complementary characteristics of resources and low carbon between different hydrogen production technologies,the coupled operation of hydrogen production from electrolytic water and coal is proposed from the perspective of technology combination innovation.The “integrated hydrogen production” system is proposed from the perspective of technology combination innovation.Based on the typical scenario set to portray the uncertainty of wind power and market electricity price,a two-stage stochastic planning model of wind power-VHP cooperative operation based on Nash negotiation theory under the electricity spot market environment is established with the goal of revenue maximization.To protect the privacy of each subject,the distributed solution of the cooperative operation model is realized based on the alternating direction multiplier method after the equivalent transformation of the original Nash negotiation problem,and the effectiveness of the proposed strategy is verified by simulation arithmetic.