Optimization method for distribution network overhead line segment switch position

Abstract

The invention discloses an optimization method for the distribution network overhead line segment switch position. Firstly the total number n of all the segment switch alternative positions of the distribution network overhead line is obtained, and the installation number of the segment switches is set as y in the n segment switch alternative positions; and the comprehensive reliability index Sy of the distribution network overhead line is obtained when the installation number of the segment switches is y according to the comprehensive index X of segment switches, and the optimal installationmode of the y segment switches is determined. According to the optimization method for the distribution network overhead line segment switch position, the positions of the segment switches are determined based on the global optimal criterion on the premise of determining the number of the segment switches, the reliability of the power supply system is improved by changing the position distributionof the segment switches, the topological structure of the overhead lines in distribution network is changed, the utilization rate of the equipment is increased, the influence range of faults is reduced and the reliability of power supply is improved.

Description

technical field [0001] The invention relates to the technical field of distribution network overhead lines, in particular to a method for optimizing the position of section switches of distribution network overhead lines. Background technique [0002] At present, with the rapid development of the world, people's demand for electricity is also increasing day by day, and all walks of life cannot do without the support of electricity. In 2017, our country's total annual power generation reached 6,495.14 billion kwh, accounting for a quarter of the global power generation, ranking first in the world, equivalent to the power generation of the United States, Russia, and Japan. sum of quantities. Such a huge amount of power generation must be transported by reliable and safe super-large transmission and distribution network overhead lines. The importance of the safety of distribution network overhead lines directly connected to users is self-evident. However, at this stage, almos...

AI Technical Summary

Problems solved by technology

Although some people have proposed to adjust the first one according to the position of the second segment switch installed, and cycle back and forth until the final segment switch position no longer changes, but this may still fall into a local optimum, and It is possible to fall into an infinite loop. When there are many segment switches, the segment switch criteria will be recalculated many times, and there is no advantage in calculation speed.

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