Gas-electric coupling comprehensive energy system elastic scheduling method considering energy storage standby

Abstract

Gas-for-use considering energy storage The elastic scheduling method for the electric coupling comprehensive energy system comprises the following steps: selecting a gas-to-gas system according to selected gas-to-gas; electrical coupling integrated energy system and input gas- The structure and parameters of the comprehensive energy system are electrically coupled; establishment of gas Electrically coupling the comprehensive energy system equipment operation constraint and the cold / power supply and demand balance constraint; calculating an energy storage standby capacity rolling calculation stage; optimal scheduling of the day-ahead economic scheduling stage is carried out; and carrying out optimization scheduling of a real-time operation stage. The invention is based on solving the problem of gas-to-gas The optimal scheduling problem of an electric coupling comprehensive energy system is solved, the complementary coordination effect of electric driving equipment and gas driving equipment is fully considered, the response capacity of an energy storage device under the emergency condition is brought into play, and energy storage standby gas-gas is established and considered. And electrically coupling the multi-stage elastic scheduling model of the integrated energy system to obtain a system day-ahead scheduling plan and a load recovery scheme when a fault occurs.

Description

technical field [0001] The invention relates to a flexible scheduling method for an integrated energy system. In particular, it relates to a flexible scheduling method for gas-electricity coupled integrated energy systems considering energy storage backup. Background technique [0002] With the increasingly serious problems of fossil fuel shortage, global warming and environmental pollution, optimizing the energy structure and building a green and efficient new energy system have become urgent problems to be solved to achieve sustainable energy development. The gas-electric coupling comprehensive energy system deeply couples different forms of energy such as electricity, heat, and gas, and provides users with flexible cooling / Different grades of energy such as heat / electricity can realize high-efficiency utilization of various energy sources as a whole, and are an important means to achieve sustainable development and clean energy substitution. [0003] From the point of ...

AI Technical Summary

Problems solved by technology

[0004] At present, the optimal dispatch of the gas-electricity coupled integrated energy system mostly ignores the impact of the supply failure at the source end and conducts a single economic dispatch, which cannot meet the energy demand of important loads of the system under the condition of source end failure.

Images