| The Integrated Energy System is a central hub of regional energy dispatching,responsible for the energy dispatching of a region,and its importance is self-evident.For this reason,how to rationally allocate resources in a region and establish a comprehensive low-carbon economy The optimal operation model of the energy system is an urgent problem to be solved.Based on the existing research on integrated energy systems,this paper first summarizes and summarizes the research results of existing related research,gives the framework and model of the CHP-type integrated energy system studied in this paper,and analyzes the wind power generation in this system,Gas boilers,gas turbines,power-to-gas equipment,hydrogen fuel cells,batteries,heat storage tanks,hydrogen storage tanks,gas storage tanks and other mathematical models provide a theoretical basis for the optimal scheduling of subsequent integrated energy systems.Then,based on the mathematical model of each equipment in the system,the P2 G equipment is split into two stages of operation,and the hydrogen energy generated in the second stage is passed into the hydrogen fuel cell for refined utilization,and the methane reactor and hydrogen The heat release characteristics of the hydrogen fuel cell are supplied to the user side by recovering the relevant waste heat,and the methane reactor is used as a carbon absorption source to participate in the ladder carbon trading mechanism to study the impact of the ladder carbon trading mechanism on the scheduling results of the integrated energy system.Based on the idea,an optimal scheduling model with the goal of minimizing the total operating cost of the system is constructed and the model is solved using the CPLEX solver in MATLAB.The simulation results show that the P2 G is operated in two stages and the heat release characteristics of the methane reactor and hydrogen fuel cell are considered It can effectively improve the utilization rate of energy and improve the low-carbon economy of system operation.After verifying the effectiveness of the optimization strategy proposed in this paper on the energy supply side of the integrated energy system,this paper proposes a two-layer optimal scheduling model of the integrated energy system that takes into account the comprehensive demand response of electricity and heat and introduces electric heating equipment on the user side.The operator guides the lower-level users to adjust their own energy consumption through real-time electricity sales and heat sales prices,and solves the upper and lower-level income of the two-layer model by combining the improved differential evolution algorithm and the CPLEX solver.The simulation results show that the two-layer optimization constructed in this paper The scheduling model can effectively improve the system’s ability to stabilize load fluctuations and user benefits. |
