Scheduling flexible resource identification method based on grey correlation theory and storage medium

Abstract

The invention discloses a schedulable flexible resource identification method based on a grey correlation theory and a storage medium, and the method comprises the steps: building a power grid topology network structure according to the scale of a power distribution network in an analysis region, selecting various types of schedulable flexible resources in the power distribution network, and building a mathematical model; setting a system objective function and a constraint function, and generating an optimal unit output combination for realizing coordinated optimization of robustness and economy; randomly generating configuration data of the schedulable flexible resources, substituting the configuration data into the target function to calculate each cost and form multiple groups of data; performing correlation degree calculation on the multi-scene data by using a grey correlation theory based on an entropy weight method to obtain a weighted comprehensive correlation degree of each schedulable flexible resource; the sorting result of the weighted comprehensive correlation degrees is the influence degree of the schedulable flexible resources on the power grid planning. According to the method, the problem of identifying the influence of the schedulable flexible resources in the current power system planning is solved, and the accuracy and the efficiency of the power system planning decision are improved.

Description

technical field [0001] The invention relates to power system planning technology, in particular to a schedulable flexible resource identification method based on grey relational theory. Background technique [0002] After entering the industrial society, the importance of power development in social development is increasing day by day, but there are still power accidents caused by power shortages. At the same time, with the proposal of the "dual carbon" goal, the proportion of renewable new energy in the power grid is increasing, and the uncertainty of its output will cause a series of impacts on the power system during the process of grid connection. In transient voltage fluctuation and flicker, the introduction and distortion of network voltage harmonics, the increase of network loss, etc. At the same time, in order to make the dispatchable new energy close to the "conventional power supply", an energy storage device is usually connected, because the energy storage devic...

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Problems solved by technology

[0004] Most of today's power system planning is only aimed at the planning of thermal power units and some schedulable flexible resources, and fails to fully consider the current variety of flexible loads. Even though collaborative optimization of multiple flexible loads is considered in some literature, it is only Provides an effort-optimized modeling approach

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