A Checking Method for Suspicious Breakpoints in Power Grid Model

Abstract

The invention provides a check method for a suspicious breakpoint in a power grid model. The method mainly comprises: sorting substation center coordinates; by using a dichotomy, finding out the substation center coordinates close to a power line endpoint; and according to optimized two-point overlap criteria, determining whether the endpoint is on the circumference of a substation, thereby obtaining a result whether the line endpoint is a breakpoint. The method can identify all suspicious breakpoints in the grid, has an error positioning function, and can timely correct errors, ensure the correctness of a system model, effectively prevent incorrect setting accidents, guarantee the safety operation of the grid and play an important role in ensuring and improving economic benefits for power enterprises.

Description

technical field [0001] The invention relates to the technical field of power grid modeling, in particular to a method for checking suspicious breakpoints in a power 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...

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.

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