Method for establishing optimal response model of electro-thermal coupling microgrid by comprehensively considering reliability and economy

Abstract

The invention discloses a method for establishing an optimal response model of an electro-thermal coupling microgrid by comprehensively considering reliability and economy. The electro-thermal coupling microgrid comprises a microgrid, a heat supply network and an electric boiler. The microgrid comprises an electric load, an electric energy bus for supplying power to the electric load, distributedphotovoltaics, an electricity storage device and a tie line connected with a superior power grid. The heat supply network comprises a heat energy bus, a heat load and a heat storage device. The electric boiler is connected with the electric bus and the heat bus. The method comprises the following steps: S1, establishing an output model of each element in the electro-thermal coupling microgrid; S2,establishing an electric heating combined response mechanism; S3, evaluating the reliability and economy of the electro-thermal coupling microgrid based on the electro-thermal joint response; S4, establishing an electricity-heat joint response model by taking the optimal comprehensive benefit as a target; and S5, solving the electro-thermal joint optimal response model based on a genetic algorithm. The method has the advantages that the electricity-heat joint optimal demand response comprehensively considering the reliability and the economy is realized. The maximization of the comprehensivebenefit of the electricity-heat coupling microgrid is realized.

Description

technical field

[0001] The invention relates to the field of optimized operation of an integrated energy system, in particular to a method for establishing an optimal response model of an electric-thermal coupling microgrid that comprehensively considers reliability and economy. Background technique

[0002] In the process of coordinated development of cities and energy, in order to further improve energy utilization efficiency and improve the safety and economy of energy system operation, it is necessary to build a unified social comprehensive energy system and break the inherent mode of separate planning and independent operation of each energy system. Carry out overall design and operation optimization. The concept of Energy Internet and integrated energy system came into being. As a key node of the Energy Internet, the integrated energy microgrid has received extensive attention due to its flexible operation mode. Integrated energy microgrid generally covers integrated...

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