Online setting method for distribution automation protection constant value

Abstract

The invention relates to an online setting calculation method for a protection setting value of a power distribution automation terminal. The method comprises the steps: writing a setting value application form through a GOMS and triggers a setting initial process; transmitting the application form information to a DMS system through an information interaction bus; determining an electrical topological relation of the model by the DMS system; analyzing the constant value application form according to the electrical topological relation to associate a 10kV transformer substation outgoing line switch and a bus; analyzing the feeder information of the constant value application form according to the electrical topological relation to form a protection diagram, and displaying the protection diagram on a WEB interface; intelligently judging switch attributes according to the electrical topological relation to form a calculation scheme; intelligently querying a power supply range and a powersupply path according to the electrical topological relation, and calculating a fixed value of the switch; correcting the switch protection constant value according to the electrical topology information in cooperation with upstream and downstream constant value configuration; setting a calculation result for online cross auditing, and synchronizing the calculation result with the GOMS system; and archiving, storing and comparing the constant value notice in the system, and establishing automatic setting calculation and overall management of the constant value.

Description

technical field [0001] The invention belongs to the field of electric power system automation, and in particular relates to an online setting method for protection fixed value of distribution automation. Background technique [0002] With the continuous construction of the power system and the advancement of various practical functions, the primary grid of the distribution network changes frequently, and the number of terminals providing relay protection for it increases year by year. At present, the terminal fixed value management function of the automation system is weak, and there is a lack of unified and efficient fixed value management methods. There is no terminal setting module for overall management, resulting in the dispersion of relevant information, and it is impossible to conduct comprehensive monitoring of the protection terminals of the automation system. Maintenance personnel cannot fully grasp the protection terminal information of the entire system in a tim...

AI Technical Summary

Problems solved by technology

There is no terminal setting module for overall management, resulting in scattered relevant information, and it is impossible to conduct comprehensive monitoring of the protection terminals of the automation system

Maintenance personnel cannot fully grasp the protection terminal information of the entire system in a timely manner, and the utilization rate of fixed values ​​is low

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