Distribution network load wheeling scheme evaluation method based on optimal combined weight

Abstract

The invention discloses a distribution network load transfer scheme evaluation method based on the optimal combination weight, which belongs to the technical field of power system transfer implementation scheme evaluation. The method combines the subjective weighting method and the objective weighting method to establish an optimization model. By solving the optimization model to determine the final weight value of each index in the comprehensive evaluation of distribution network load transfer, on this basis, combined with the evaluation matrix of the gray correlation degree calculation index, a gray distribution network load transfer based on the optimal combination weight is proposed. The comprehensive evaluation method is used as the basis for the optimization of distribution network load transfer scheme.

Description

technical field [0001] The invention relates to a method for evaluating an implementation plan of power system transfer, in particular to a method for evaluating a distribution network load transfer plan based on optimal combination weights. Background technique [0002] In recent years, with the continuous growth of my country's national economy, especially due to the rise of the tertiary industry, the structure of power load has also changed. The length is longer, the nodes are more and more, and the structure is more and more complex, so the probability of failure is correspondingly increased. When the distribution network fails, the faulty equipment needs to be removed as soon as possible, and then the power supply to the user load should be restored as soon as possible to minimize the scope of the power outage, thereby greatly reducing the social impact and economic losses caused by the power outage. [0003] There are a large number of switches in the power system dist...

AI Technical Summary

Problems solved by technology

[0005] At present, the methods widely used by power companies are basically based on empirical methods to give corresponding operation plans. Therefore, it is impossible to select the optimal operation plan to transfer the most loads and minimize the scope of blackouts. When there are multiple places In the event of overload and power failure, it is impossible to realize load transfer in a coordinated manner, and it is impossible to give a reasonable solution to achieve load balance of equipment

At the same time, the schemes given by the current empirical method often require the operation dispatcher to have good experience and have a deep understanding and mastery of the system equipment, thus adding a lot of work pressure to the operation dispatcher

Images