A location method of solid state transformer considering distribution network reconfiguration

Abstract

A method for locating a solid state transformer considering distribution network reconfiguration comprises the following steps: A. establishing a bi-level optimization model for locating the solid state transformer considering distribution network reconfiguration, comprising an objective function and a constraint condition; B. determine that specific parameters of an improved bacterial forage algorithm which integrates the learning of a variable speed society in a distribution network; C. that solution is carry out by using an improved bacterial forage algorithm fuse with variable speed sociallearning; D. analyze that result to obtain the optimal installation position of the solid-state voltage transformer and the result of the distribution network reconstruction. The invention realizes the optimal location of the solid-state transformer and improves the operation stability and economy of the distribution network through the location selection method of the solid-state transformer considering the distribution network reconfiguration. At the same time, the improved bacterial foraging algorithm has the advantages of fast convergence speed and high searching precision when calculating the network with more ring networks and more complex topology.

Description

technical field [0001] The invention relates to the field of electric power system, in particular to the optimal operation technology of distribution network reconfiguration. Background technique [0002] As a new type of high-efficiency and intelligent power electronic equipment, solid-state transformers play a further role in promoting the development of energy Internet. As the energy flow execution device of the Energy Internet, it can not only realize the functions of conventional transformer voltage transformation and electrical isolation, but also realize the effective management of distributed energy, energy storage equipment and loads, the two-way flow of energy, and the power flow distribution in the control system and other functions. If a solid-state transformer is added to the power grid at a suitable location, system losses can be reduced, power transmission capacity and voltage stability can be improved, so it is particularly important to optimize the location...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a solid-state transformer site selection method that takes into account the reconfiguration of the distribution network, realize the optimal site selection of the solid-state transformer, and solve the problem of low computational efficiency of the bacterial foraging algorithm when solving the reconstruction problem

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