Distribution network reconfiguration method

Abstract

The invention discloses a distribution network reconfiguration method, which comprises the following steps: building a distribution network load optimization model; and optimizing the distribution network load optimization model on the basis of a genetic algorithm, and obtaining a distribution network reconfiguration scheme. The reconfiguration is carried out on a distribution network on the basis of a genetic method; and load reconfiguration is carried out by changing the state of a switch, so that line loss of the distribution network is reduced; the benefits are improved; and the power supply reliability and safety are improved.

Description

technical field [0001] The invention relates to the field of distribution networks, in particular to a distribution network reconfiguration method. Background technique [0002] The line loss of the distribution network, especially the loss of the 10kV low-voltage side line, is one of the links with more losses in the distribution network, and it is one of the key points of the line loss management work. In order to ensure the reliability and safety of the power supply network, the wiring and operation methods of the distribution network on the medium and low voltage side have become more and more complex, and gradually tend to be diversified. Multiple lines are connected to each other, and the power supply mode of the ring network is implemented. At present, except for a few simple heuristic algorithms based on physical models, most of the power distribution network reconfiguration uses intelligent algorithms to solve this problem. The power distribution network has the ma...

AI Technical Summary

Problems solved by technology

The power distribution network has the mandatory requirement of radial open-loop operation. The existing methods generally have the disadvantage of not being able to guarantee the feasibility of the network in the coding design. In the calculation process, a large number of infeasible networks with rings or isolated islands will inevitably be generated. In the calculation process, it is necessary to frequently check the network and repeatedly operate and repair the invalid network to obtain a valid network

At the same time, the operators constructed by existing encoding methods are not closely related to the changes in the actual distribution network structure.

The above-mentioned deficiencies lead to the problems of many iterations and long time consumption in the existing intelligent algorithms, which are difficult to be applied to solve the reconstruction of large-scale power distribution networks

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