Day-ahead optimal scheduling method for micro energy network containing power-to-gas conversion equipment

Abstract

The invention discloses a day-ahead optimal scheduling method for a micro energy network containing power to gas (P2G) equipment. Firstly, an electricity, gas, heat and cold combined supply micro energy network model is established in an energy concentrator mode; the energy concentrator comprises a micro gas turbine, a P2G, an electric boiler, a gas-fired boiler, an electric refrigerator, an absorption refrigerator and other energy coupling devices. Secondly, a day-ahead optimal economic dispatch model with the lowest operation cost of the micro energy network and P2G income considered is established, and the economy of the P2G to the micro energy network and the absorption capacity of the P2G to renewable energy sources are investigated; the economic dispatch model comprises an objectivefunction, an element model and network constraints. Finally, verification is carried out in a contrast setting mode, and results show that P2G plays a positive role in system operation cost and renewable energy consumption.

Description

technical field [0001] The invention belongs to the field of optimal dispatching of power system microgrids, and in particular relates to a combined dispatching method of electricity, gas, heat and cooling for micro energy grids including power-to-gas. Background technique [0002] The integration of renewable energy such as wind energy and solar energy into the grid is conducive to reducing carbon emissions caused by traditional power generation methods. However, with the rapid growth of wind power and photovoltaic installed capacity, the phenomenon of curtailment of wind and light in some areas has become increasingly serious. It is mainly due to the uncertainty of wind and light output, anti-peak regulation, and the reverse distribution of power and load in my country. [0003] Connecting renewable energy to the microgrid for on-site consumption can effectively improve the utilization rate of renewable energy, the technology form and key technologies of the Energy Intern...

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Problems solved by technology

However, due to the constraints of operating costs, the capacity an

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