Multi-target optimized dispatch decision evaluation method for power system

Abstract

The embodiment of the invention discloses a multi-target optimized dispatch decision evaluation method for a power system. The method solves the technical problem in the prior art that during the current machine group joint optimization scheduling application process, no research is done on the above scientific decision-making method. According to the embodiments of the invention, the method comprises the steps of for a plurality of target functions associated with the optimized dispatch decision of a power system, solving out a Pareto solution set for multi-target optimized dispatch through the multi-target optimization algorithm so as to obtain all candidate solutions; subjecting the attributes of candidate solution sets containing the above candidate solutions to confidence evaluation calculation; according to confidence evaluation, obtaining the overall confidence of the candidate solutions through a multi-hierarchical structure and the evidence reasoning algorithm; and subjecting the total confidence to utility analysis and determining a final scheduling solution.

Description

technical field [0001] The invention relates to the field of optimal dispatching of electric power systems, in particular to an evaluation method suitable for multi-objective optimal dispatching decisions of electric power systems. Background technique [0002] Power system optimization dispatch usually needs to consider multiple objectives, such as power generation cost, system network loss, voltage stability index, voltage deviation and other indicators, and its essence is a multi-objective optimization problem. Moreover, these multiple objectives usually conflict with each other, such as power generation cost and voltage stability index, so it is impossible to have a unique optimal solution to make these objectives optimal at the same time. A set is obtained by optimizing multiple objectives of the power system, which is called the Pareto scheduling solution set, and each solution cannot dominate each other. But in the actual power operation scheduling, only the unique s...

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Problems solved by technology

[0006] The embodiment of the present invention provides an evaluation method suitable for multi-objective optimal scheduling decision-making in power systems, which solves the technical problem that there is no research on this type of scientific decision-making method in the current application of joint optimal scheduling of unit groups

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