Optimization of electricity, heat and gas for integrated energy systems taking into account carbon trading mechanisms and hydrogen production from electricity

For the purpose of improving the energy efficiency, optimize the operational flexibility of equipment, and further reduce the carbon emission level of IES (Integrated Energy System), a low-carbon economic operation strategy of IES is proposed. Firstly, it is considered that IES participates in the carbon trading market and introduces a ladder-type carbon trading mechanisms to guide international energy strategies for the control of carbon dioxide emissions. Secondly, the two-stage operation process of P2G (Power-to-Gas) is refined. The electrolyzer, MR and HFC are introduced to replace the traditional P2G, and the benefits of hydrogen energy in various aspects are studied. Finally, the operation strategy of CHP (Combined Heat and Power) and HFC with adjustable thermoelectric ratio is proposed to further improve the IES nature of low-carbon and economy. Based on this, the operation objective of low-carbon economy with the minimum cost to purchase energy, cost to emit carbon and wind curtailment cost is constructed. Solve the problem using the CPLEX solver to transform the original problem into a mixed-integer linear problem. In order to verify the effectiveness of the proposed strategy, a number of operational scenarios will be in place.