Method for optimizing power-failure plan based on genetic algorithm

Abstract

The invention discloses a method for optimizing a power-failure plan based on a genetic algorithm. The power-failure plan is optimized for a distribution network, and a multi-target and multi-constraint plan model is established. The multi-target and multi-constraint plan model mainly comprises a plurality of optimization targets and a plurality of constraints, wherein the optimization targets comprise (1) power supply reliability maximization, (2) safety risk minimization, (3) working capacity balance maximization and (4) power-failure time adjustment amount minimization; and the constraints comprise (1) a same-pole failure-accompanying constraint, (2) a double-power supply constraint, (3) a power supply guaranteeing constraint, (4) a load transfer-supply over-load constraint and (5) a working capacity non-exceeding constraint. On the basis of the multi-target and multi-constraint plan model, the method comprises the following steps of: solving by using a simulated annealing algorithm; coding a decision variable Bik into a character string of which the length is i*k; randomly generating N solutions which serve as initial groups, and evaluating the performance of each solution; and performing operation for G times, evaluating the performance of each solution in the group, and returning an optimal solution.

Description

technical field [0001] The invention relates to a method for optimizing a power outage plan based on a genetic algorithm, which belongs to the technical field of power grids. Background technique [0002] In the face of complex power grids, multi-tasks, multi-departments, multi-constraints and various uncertain factors, the process of formulating power outage plans for distribution networks is relatively complicated, while the preparation of traditional production operation plans has a low degree of automation and relies on manual communication and coordination , without computer-aided intelligent optimization of the plan. [0003] The domestic and foreign researches on power system outage plan optimization mainly focus on unit maintenance, and relatively few studies on power grid equipment production plan. From the application point of view. Some scholars proposed that in the monthly power outage planning, the most economical goal of distribution network maintenance shoul...

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Problems solved by technology

[0004] In short, at present, some domestic research work has been carried out in the field of power grid production plan optimization, but it is still in its infancy, and it is far from meeting the requirements of power supply enterprises for production operation plan management; although foreign research on production plan optimization has already achieved Certain results, but no studies have addressed complete production planning optimization

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