Network online monitoring system for transformer substation

Abstract

The invention discloses a network online monitoring system for a transformer substation. The network online monitoring system comprises a network monitoring device, a monitoring plug-in component for a switchboard of the transformer substation and a monitoring plug-in component for network messages of the transformer substation; the network monitoring device is applicable to the intelligent transformer substation, and the monitoring plug-in component for the switchboard of the transformer substation and the monitoring plug-in component for the network messages of the transformer substation realize a network monitoring function; the network monitoring device comprises a special interface card for multiple network communication interfaces, a main CPU (central processing unit) control panel and relevant control and communication interfaces; the monitoring plug-in component for the switchboard of the transformer substation acquires a state of the network management switchboard and displays data warning and abnormity information in real time; the monitoring plug-in component for the network messages of the transformer substation acquires the network transmission messages of the transformer substation and displays message abnormity information and variation of data states of the messages in real time. The network online monitoring system has the advantages that the network online monitoring system can be used for monitoring and warning display for a communication state of a network in the intelligent transformer substation in real time, and important processed state information can be directly transmitted into the monitoring system for the transformer substation, so that the transformer substation can be monitored in a unified manner, and an effective solution is provided for problems of incapability of visually monitoring network information in an existing intelligent transformer substation in real time, difficulty in tracking procedure abnormality and difficulty in analyzing shortcomings of an intelligent device.

Description

technical field [0001] The invention relates to an on-line monitoring system for a substation network, which belongs to the technical field of intelligent substations in electric power systems. Background technique [0002] The smart substation adopts the IEC61850 standard for unified modeling and communication implementation. The transmission protocols include sampling (SMV) messages, object-oriented general substation event (GOOSE) messages, and manufacturing message specification (MMS) messages. As the data exchange equipment of the network, the reliability of the SMV and GOOSE message transmission of the process layer switch has a direct impact on the signal collection of the primary equipment, the operation and action export of the secondary protection equipment. In order to ensure the reliable operation of the process layer network, the current network switch configuration adopts high reliability and expensive dual-power industrial switches, and adopts multiple complex...

AI Technical Summary

Problems solved by technology

For the switches in operation, it is basically impossible to monitor indicators such as network load and CPU utilization, and it is difficult to find abnormal symptoms of the switch and the network, and it is difficult to predict whether the switch may fail and affect the operation of the system.

Although the 220kV and above substations are equipped with a device that can record and analyze real-time messages, this device is mainly concerned with message anomalies, and cannot combine the information of the switch to know the overall operating status of the network; on the other hand, although message analysis can Monitor the changes of the signal, but it is impossible to know whether the change process of the signal is related to the network

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