An automatic layout calculation method for a transformer substation with inertia force as a center distribution network single line diagram

Abstract

The invention discloses an automatic layout calculation method for a transformer substation with inertia force as a center distribution network single line diagram. The method comprises the followingsteps of acquiring the original information; optimizing the coefficient of each acting force through a genetic algorithm; calculating repulsion of a simple force guide algorithm, calculating point edge and edge repulsion and total repulsion, adding gravity center force to draw a node to enable topology to converge at the gravity center of a graph, calculating inertia force of a node i of a second-level branch line and a lower-level branch line of the feeder line, calculating an improved node motion equation, and finally outputting an optimal single line diagram and an optimal acting force parameter.

Description

technical field [0001] The invention belongs to the field of situation awareness and visualization of smart grids, and specifically relates to an automatic layout calculation method for a distribution network with a substation as the center with an inertia force added and a single-line graph force guide method under a smart distribution network. Background technique [0002] "Substation-centralized Distributed Network (SCDN)" is an active distribution network segmentation model proposed in recent years, the purpose is to provide high information aggregation for active distribution network (Active Distribution Network, ADN) The situation screen with high connection recognition and high situation awareness provides a single-line wiring diagram of the distribution network; the previous research proposed the concept design of smart grid situation diagram modeling and situation awareness visualization; proposed the automatic generation of distribution network uniform wiring diagra...

AI Technical Summary

Problems solved by technology

[0004] The one-line diagram brake generation based on the force field model or dynamic algorithm has the advantages of more beautiful one-line diagram and fast calculation, but there are three main problems: ①It depends heavily on the initial layout, ②It is prone to intersection and layout ball clustering, For this reason, improved algorithms such as gravity, line-line avoidance, point-line avoidance, etc. are proposed to reduce crossover and layout ball clustering; however, because the points and edges of the SCDN graph are too dense, when the above improved methods are applied based on the initial layout, it is found that It is difficult to maintain the original initial layout without crossing the overall structure between the branches, so an artificial force defined as "inertial force" is proposed to keep the inertia of the node as much as possible during operation, without adding too many crossings but Make the graph evolve towards uniformity

③The previous research was based on experience for various force parameters and specific gravity, so the parameters are not optimized

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