Logic control method for visual management of generator-transformer unit protection devices

Abstract

The invention relates to a real-time monitoring and managing method of protection devices of power systems, in particular to real-time monitoring and managing of generator-transformer unit protection devices of power stations, and discloses a logic control method for management of protection devices at the places such as self-generation power stations and transformer substations. The logic control method for visual management of the generator-transformer unit protection devices is characterized by comprising the following control steps that the difference of real-time operation data of the two generator-transformer unit protection devices is transmitted to an upper computer through a network; when the difference of the operation data exceeds 10%-15% of a protection action fixed value, namely, when the difference of the operation data is beyond the normal range, an alarm is given out; the data are displayed; the data are recorded; the data are analyzed; the whole procedure ends. The logic control method for visual management of the generator-transformer unit protection devices has the advantages that visualization of protection logic and real-time monitoring of relevant parameters are realized; when the difference is beyond the normal range of the protection action fixed value, the alarm is given out; real-time operation data are stored regularly, fault data are stored when a fault occurs, a report form can be formed by analyzing the real-time operation data, and the operation states of the protection devices can be judged easily; playback and simulation of the real-time operation data and the fault data are conducted, and fault analysis is facilitated.

Description

technical field [0001] The present invention relates to a method and device for real-time monitoring and management of protection devices in electric power systems, especially for real-time monitoring and management of protection devices for generating and transforming groups in power plants, and is also applicable to a logic control method and device for managing protection devices in self-provided power plants, substations, etc. . Background technique [0002] At present, the protection devices of power plants (including self-provided power plants and substations) are set in independent rooms. Equipment maintenance personnel need to conduct on-site inspections once a day, and operating personnel need to conduct on-site inspections every two hours, so they cannot be monitored in real time. , Of course, it is impossible to discover hidden dangers in advance and eliminate potential risks. At the same time, due to the many protection devices and complex principles of the gene...

AI Technical Summary

Problems solved by technology

[0002] At present, the protection devices of power plants (including self-provided power plants and substations) are set in independent rooms. Equipment maintenance personnel need to conduct on-site inspections once a day, and operating personnel need to conduct on-site inspections every two hours, so they cannot be monitored in real time. , Of course, it is impossible to detect hidden dangers in advance and eliminate potential risks

At the same time, due to the many protection devices and complex principles of the generator-transformer unit, and the technical level of the technicians is different, the sensitivity to the relevant parameters of the operating equipment is different, so that after a fault occurs, the process of the fault cannot be quickly, accurately and truly restored

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