Low-carbon Economic Scheduling for Integrated Energy System Based on Dynamic Hydrogen Doping Strategy
Because of the poor flexibility of traditional carbon capture power plants in the existing integrated energy system and the unclear impact of factors such as electrical load coefficient,pipeline length,and pipeline operation and maintenance cost on the dispatch of integrated energy systems that take into account hydrogen doping in the gas grid,this article proposes an integrated energy system low-carbon economic dispatch model based on dynamic hydrogen doping strategy.Firstly,establish a comprehensive flexible carbon capture power plant model to decouple the absorption and regeneration links of carbon dioxide;secondly,establish a pipeline operation and maintenance cost model based on dynamic hydrogen doping to realize the dynamic adjustment of hydrogen doping ratio and improve the flexibility of system scheduling;then,a stepped carbon trading mechanism is introduced to build an integrated energy system low-carbon economic dispatch model that considers the pipeline operation and maintenance cost after adding hydrogen to the gas network.The McCormick relaxation method is used to convert the nonlinear problem into a linear problem and solve it.Finally,the simulation results of the calculation example show that the pipeline operation and maintenance cost coefficients at each node of the gas network are related to the volume of gas,transmission distance,and other factors,which should be taken into account in the pricing of gas;the economic and environmental benefits of the system can be increased by 44.1 percent and 47.8 percent,respectively,by rationally selecting the upper limit of the hydrogen blending ratio of the gas network and formulating a dynamic hydrogen blending strategy,taking into account the electric load factor,the length of the gas network pipeline,and other factors are considered in the dispatch of the integrated energy system.
low-carbon economic dispatchcomprehensive flexible carbon capture power plantdynamic hydrogen doping strategy for gas gridpipeline operation and maintenance costMcCormick
万方数据
维普
