Compressed air energy storage system and method with functions of wind power stabilization and thermoelectric decoupling

Abstract

The invention discloses a compressed air energy storage system and method integrating wind power stabilization and thermoelectric decoupling, two stages of electric heat storage modules are introduced into the compressed air energy storage system and are coupled with a cogeneration unit, and the functions of wind power stabilization, clean heating and thermoelectric decoupling can be achieved at the same time. The technology provided by the invention has important scientific significance and value in the aspects of improving the wind power grid-connected capacity grade, assisting the realization of a dual-carbon target and the like.

Description

technical field [0001] The invention belongs to the field of energy utilization, and in particular relates to a compressed air energy storage system and method with both wind level suppression and thermoelectric decoupling. Background technique [0002] Due to its mature technology and abundant wind energy resources, wind power has become the fastest growing renewable energy utilization method in the world. However, wind energy resources are subject to meteorological conditions, showing intermittent, fluctuating, and anti-peaking characteristics, and their grid connection will aggravate the uncertainty and disorder of energy flow in the power system; in addition, wind power installed far away from the main load center, As a result, there are differences in the spatial distribution of wind power production and load centers, and the local consumption capacity is limited, making the phenomenon of "abandoning wind and curtailing electricity" common. Especially in the heating se...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a compressed air energy storage system and method with both wind level suppression and thermoelectric decoupling, so as to solve the current problems of difficulty in connecting wind power to the grid and severe wind curtailment. The system is deeply integrated with the coal-fired combined heat and power unit, and comprehensively utilizes different grades of energy such as heat and electricity in the two types of systems, and can simultaneously realize the functions of wind level suppression, clean heating and thermoelectric decoupling, which is helpful for improving the wind power grid-connected capacity and boosting energy consumption. It has important scientific significance and practical value in the realization of the "double carbon" goal.

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