Method for configuring simplified graph through constant value setting

Abstract

The invention belongs to the field of power system relay protection, and particularly relates to a method for configuring a simplified graph through constant value setting, wherein the method comprises the following steps of: 1, acquiring a power distribution network SVG single-line diagram file from a power distribution network GIS diagram model system; 2, analyzing the SVG single-line diagram file of the power distribution network, identifying equipment needing to be protected in the single-line diagram, deleting and filtering information of other equipment except the equipment needing to beprotected, and generating a single-line simplified diagram required by the setting calculation of the power distribution network; and 3, setting a protection constant value of equipment needing to beprotected in the single-line simplified graph according to a setting principle. According to the method, the single-line simplified graph required by distribution network setting calculation can be automatically generated according to the GIS system related to the distribution network, and meanwhile, the constant value of the corresponding protection equipment is displayed, and only the protection constant value calculated by the system needs to be checked and checked manually, so that the working efficiency of setting calculation personnel is greatly improved.

Description

technical field [0001] The invention belongs to the field of electric power system relay protection, and in particular relates to a method for setting a fixed value and configuring a simplified diagram. Background technique [0002] The distribution network is a vital part of the power supply for users. Correct configuration of protection and effective isolation of faults must be considered by the power personnel of the distribution network. With the continuous construction of the power grid, the scale of the distribution network continues to expand. Although the calculation of the external fixed value of the distribution network is relatively simple, there are many lines in the distribution network, and the protection personnel need to calculate a large number of line fixed values. Each line needs to be drawn manually. The simplified diagram of protection calculation is extremely cumbersome, time-consuming and inefficient. For example, the patent CN105787819A discloses a w...

AI Technical Summary

Problems solved by technology

With the continuous construction of the power grid, the scale of the distribution network continues to expand. Although the calculation of the external fixed value of the distribution network is relatively simple, there are many lines in the distribution network, and the protection personnel need to calculate a large number of line fixed values. Each line needs to be drawn manually. Simplified diagram of protection calculation, the work is extremely cumbersome, takes a lot of time, and the work efficiency is low

For example, the patent CN105787819A discloses a wind farm relay protection setting calculation method, which is set by calculating and sorting out the protection value, which involves a huge amount of information, and the staff still need to manually draw a simplified protection calculation diagram according to the calculation results, which is tedious and difficult less efficient

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