System optimization scheduling method considering coupling of CSP power station and AA-CAES power station

Abstract

The invention belongs to the field of energy storage system optimization scheduling, and particularly relates to a system optimization scheduling method considering coupling of a CSP power station and an AA-CAES power station, and the method comprises the steps: constructing a coupling system of the CSP power station and the AA-CAES power station, and the energy flow relation of the coupling system is that the energy storage systems in the CSP power station and the AA-CAES power station are coupled and connected, and the heat output by the heat output unit of each power station is shared by the heat consumption units of the two power stations; the working mode is that the energy is stored in the shared energy storage system when all the heat output units are started, and heat is obtained from the energy storage system when all the heat consumption units are started; according to the energy flow relationship and the working mode, a power system optimization operation model containing the coupling system is established for day-ahead optimization scheduling of the power system. According to the invention, the CSP power station is coupled with the AA-CAES power station, and the heat produced by the heat production unit of each power station is shared by the heat consumption units of the two power stations, so that the repeated investment of a heat storage device is avoided, the flexibility of heat scheduling in the system is improved, and mutual assistance of heat is realized.

Description

technical field [0001] The invention belongs to the field of optimal scheduling of energy storage systems, and more specifically relates to a system optimal scheduling method considering the coupling of CSP power stations to AA-CAES power stations. Background technique [0002] It has become an important consensus of all countries in the world to vigorously develop clean energy and reduce the use of fossil fuels. Wind energy and solar energy have received more and more attention from all walks of life. However, due to the strong uncertain characteristics of wind power and photovoltaics such as volatility and intermittency, their predictability and adjustability are poor, and their large-scale grid connection has brought huge impact and challenges to the safe and stable operation of the power system. Therefore, how to safely and efficiently realize the large-scale consumption of wind and solar resources has become one of the hot research issues in recent years. [0003] Lar...

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Problems solved by technology

[0004] The present invention provides a system optimization scheduling method considering the coupling of CSP power station with AA-CAES power station, which is used to solve the problem of limited flexibility of heat scheduling in the existing AA-CAES power station, and the coupling operation of AA-CAES power station and CSP power station is effective Realize the mutual aid of heat inside the coupling system and improve the operating economy of the coupling system

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