A verification method for dangling components in a power grid model

Abstract

The invention provides a verification method for suspension elements of an electrical network model. The method comprises steps that, all electrical elements of the electrical network model and belonging transformer stations of each electrical element are searched; whether all end points of each electrical element are connected with end points of other electrical element in the corresponding transformer station is sequentially determined, if not, the electrical element is determined to be a suspension element; if all the end points of each electrical element are connected with the end points of other electrical element in the corresponding transformer station, the electrical network model has no suspension element. Through the method, errors of the suspension elements of the whole electrical network can be identified, the error positioning function is realized, verification computation can be greatly reduced through a calculation mode of point-to-point distance optimization, errors can be timely corrected, accuracy of the system model can be guaranteed, an error setting accident can be effectively prevented, safe electrical network operation is guaranteed, and important effects on electric power enterprise guarantee and economic benefit increase are realized.

Description

technical field [0001] The invention relates to the technical field of grid modeling, in particular to a verification method for suspended components in a grid model. Background technique [0002] In order to ensure the safe and stable operation of the power system, it is necessary to have a full understanding of the physical characteristics and operating status of the power system. However, due to the high cost of conducting large-scale experiments in power systems, or the long observation time or short system response time and measurement difficulties, many field experiments cannot be realized. Therefore, computer simulations are increasingly used to replace Most of the field experiments. Simulation computing plays an important role in power system analysis. It extends people's observation ability, strengthens their thinking, simulation and calculation capabilities, and plays a decisive role in promoting the development of power system disciplines. [0003] How to quickl...

AI Technical Summary

Problems solved by technology

[0006] All components have to be manually built one by one, and the power system itself does not have a reasonable and effective verification method for whether the established grid model is correct. The staff of the power system can only rely on the traditional means of "one look and two calculations" model correct or not

First of all, this kind of verification of the model is checked by the naked eye and followed by the feeling, and the staff generally lack the verification experience; secondly, it is passive, and only when the program fails to calculate normally, the problem is discovered and the cause is found.

It can be seen that this manual and passive calibration method is unscientific and very dangerous, and there is a possibility of safety accidents due to model errors at any time

Especially under the objective conditions of today’s large-scale power grid and large model area, once the power grid model is wrong, troubleshooting is like finding a needle in a haystack. The time for troubleshooting is unpredictable, and it is difficult to solve the problem in a short period of time, which seriously affects the commissioning of equipment on schedule.

Images