Micro-grid group source grid load storage double-layer optimization scheduling method and system

Abstract

The invention provides a micro-grid group source network load storage double-layer optimization scheduling method and system. The method comprises the following steps: acquiring operation parameter data of a micro-grid group; according to the obtained operation parameter data and a preset double-layer optimization model, obtaining a scheduling strategy of the micro-grid group, wherein in the double-layer optimization model, the first-layer optimization is multi-objective optimization with the lowest energy excess rate and the lowest load power loss rate, and the second-layer optimization is multi-objective optimization with the lowest operation management cost of the power grid group and the lowest environment cost of pollutant treatment. According to the invention, the minimum energy excess rate, the minimum load power loss rate and the like are taken as upper-layer targets, the minimum economic cost and the minimum environmental cost are taken as lower-layer targets, and independent variables in the upper-layer model can influence the target function value and the constraint condition of the layer and also influence the optimal solution set of the lower layer; the optimal solution set of the lower layer can influence the objective function value and the constraint condition of the upper layer at the same time, and micro-grid group scheduling considering stability and comprehensive benefits is achieved.

Description

technical field [0001] The present disclosure relates to the technical field of optimal dispatching of microgrid groups, and in particular to a source-network-load-storage double-layer optimal dispatching method and system of a microgrid group. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] The internal structure and functions of the microgrid group are becoming more and more complex, and their role in the power system is becoming more and more important. With the continuous development of the microgrid group, the balanced development of its economy and reliability is extremely important. [0004] The inventors found that the existing microgrid group optimal dispatching models generally adopt single-objective optimization models, and most of the obtained microgrid group optimal dispatching strategies can only achieve a single objective,...

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Problems solved by technology

[0004] The inventors found that the existing optimal dispatching models for microgrid groups generally adopt a single-objective optimization model, and most of the obtained optimal dispatching strategies for microgrid groups can only achieve a single objective, and cannot achieve both stability and cost optimization of the microgrid group

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