Method for remotely modifying relay protection setting value

Abstract

The invention provides a method for remotely modifying a relay protection setting value, which is applicable to a scheduling master station system which simultaneously has a relay protection information master station function and an EMS (Energy Management System) master station function. The method comprises the following step of: graphically drawing operation of a relay protection device to corresponding primary equipment interval histogram. Through the method for remotely modifying the relay protection setting value, the conventional mode of selecting an operated relay protection device through a tree list is abandoned, and a relay protection device operation graph is drawn to the interval histogram of corresponding primary equipment by using the characteristic that the scheduling master station simultaneously has the relay protection information master station function and the EMS master station function, so that the protection operation graph and other signals are displayed on a uniform graphic interface; and therefore, the risk brought by mistakenly selecting an operation object is reduced, the safety and the reliability for operation of remotely modifying the relay protection setting value are improved, and unified management of operation monitoring and control operation of first equipment and second equipment of a power grid is realized.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a method for remotely modifying the fixed value of relay protection. Background technique [0002] The relay protection device means that when the power components (such as generators, lines, etc.) An automated measure and device in which a circuit breaker issues a trip command to terminate the development of these events. The relay protection device is an integral part of the power system and guarantees the safe operation of the power system. It is very important to rationally configure and use the relay protection device correctly. [0003] At present, in the operation of the power grid, the fixed value of the relay protection device is generally modified on the liquid crystal panel of the device. In order to improve operational efficiency, some units have begun to try to remotely modify the relay protection setting technology. Interface, the usual method is to select the operat...

AI Technical Summary

Problems solved by technology

In order to improve operational efficiency, some units have begun to try to remotely modify the relay protection setting technology. Interface, the usual method is to select the operation object through the tree selection list. This method is relatively simple to implement, but its biggest defect is that it is very easy to cause misoperation when selecting the operation object. Therefore, the existing remote It is difficult to modify the relay protection setting value technology to meet the anti-error requirements of the relay protection setting value operation, which brings security risks to the power grid operation

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