An optimal scheduling method for virtual power plants considering power-to-gas coordination

Abstract

The present invention relates to the technical field of optimization of virtual power plants, in particular to a virtual power plant optimization dispatching method considering power-to-gas coordination, including: introducing a carbon capture power plant-power-to-gas-gas unit coordinated operation framework into the virtual power plant to construct a virtual power plant System; in the virtual power plant, the joint scheduling operation of carbon capture power plant, waste incineration power plant and wind-solar is carried out, and the carbon capture power plant and waste incineration power plant are used as controllable units to optimize the virtual power plant system and establish a virtual power plant optimization scheduling model ; Using the inverse cotangent compound differential evolution algorithm to solve the optimal dispatching model of the virtual power plant. The CO2 captured by the carbon capture of the present invention can be used as the power-to-gas raw material, and the generated natural gas is supplied to the gas-fired unit; and the energy consumption of carbon capture and the energy consumption of flue gas treatment are transferred through joint scheduling to stabilize the fluctuation of renewable energy, so that wind power ‑Photovoltaics can be indirectly dispatched and used flexibly, so that internal resources can be used more effectively.

Description

technical field [0001] The invention relates to the technical field of virtual power plant optimization, in particular to a virtual power plant optimization scheduling method considering power-to-gas coordination. Background technique [0002] As the greenhouse effect and energy depletion caused by the use of fossil energy become increasingly prominent, the development of a high-proportion renewable clean energy network has become a global consensus. In 2019, my country's abandoned wind and solar power amounted to 16.9 billion and 4.6 billion kWh respectively, and the peak-to-valley difference in electric load was indirectly increased due to wind power grid connection. In response to this problem, the "13th Five-Year Plan for Electric Power Development" pointed out that multi-energy Complementarity is an important means to improve the capacity of renewable energy consumption. At present, how to improve the utilization rate of renewable energy and enhance the coupling between...

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Problems solved by technology

The research on VPP in the prior art mainly uses fossil fuel units that generate a large amount of carbon emissions as controllable power generation units, and rarely involves the comprehensive scheduling of environmentally friendly controllable power generation units such as carbon capture power plants and waste incineration power plants, and At present, few studies have involved the impact of P2G operating costs on the optimal dispatch of virtual power plants

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