Optimization Dispatch of Integrated Energy Systems Considering Hydrogen Production Efficiency Variation and Hydrogen Energy Green Certificate
Proton exchange membrane(PEM)water electrolysis hydrogen production technology is one of the main methods for producing green hydrogen,but its hydrogen production efficiency is influenced by many factors.Considering the influence of input power on the hydrogen production efficiency of electrolyzers,this paper introduces an integrated energy system optimization model that accounts for the variability in electrolyzer efficiency.Firstly,the coupling relationship between hydrogen production efficiency and electrolyzer input power is studied.Utilizing historical data analysis,a correlation curve is established to depict the relationship between electrolyzer power and hydrogen production efficiency.Secondly,by combining the stepwise carbon trading mechanism with the green certificate trading mechanism,a carbon-green certificate trading mechanism is proposed.Subsequently,a comprehensive energy system optimization dispatch model is developed,which takes into account the fluctuation in hydrogen production efficiency and incorporates considerations regarding hydrogen energy green certificates,with the primary objective of minimizing the total system cost.Finally,through case analysis,the effectiveness of the proposed model in reducing the total operating cost of the system is verified.
hydrogen energy green certificateoptimization dispatchhydrogen production efficiencyPEMstepwise carbon trading
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