Method and system for storing message of intelligent substation

Abstract

The invention provides a method and a system for storing a message of an intelligent substation. The method comprises the following steps: obtaining a GOOSE (Generic Object Oriented Substation Event) message of the intelligent substation, judging whether the GOOSE message contains a preset trigger storage item; if so, determining a trigger storage moment and a target power interval corresponding to the GOOSE message according to the goose message; obtaining a 61850 protocol message corresponding to the target power interval within periods of time set before and after the trigger storage moment; storing the 61850 protocol message to a storage path corresponding to the target power interval. By adopting the technical scheme, safe storage of key messages of the substation is ensured, the key messages cannot be covered by other messages, and the retrieval difficulty of the key messages can be reduced.

Description

technical field [0001] The invention relates to the technical field of electric power engineering, in particular to a message storage method and system for an intelligent substation. Background technique [0002] In a smart substation, in order to ensure the normal operation of the system, each intelligent electronic device (IED) needs to be able to interoperate and have a good cooperation relationship, for example, the correctness of the communication message encoding, the legality of the parameters, and the rationality of the timing Wait. These problems are much more complicated than the traditional cable hard connection. It is necessary to arrange a network communication recording and analysis system in the digital smart substation to monitor and record the network communication process; the recorded messages truly reflect the The operation behavior and data exchange of equipment are the ideal basis for analysis of abnormalities and accidents. It can also be used to test...

AI Technical Summary

Problems solved by technology

[0005] Problem 1: Key messages are easily overwritten

At the same time, the network analyzer is limited by the number of connected hard disks and the space of the hard disk itself, so its capacity is limited

In order to continue to store messages, it can only be stored circularly, that is, when the storage space is used up, delete earlier messages, including messages with key events in smart substations, which causes some messages containing key events in substations to be overwritten;

[0007] Problem 2: Difficulty in message retrieval

Messages from different devices in the same interval may be distributed in multiple pacp files. It will be very difficult and time-consuming to retrieve the messages of the same interval within a specified time period.

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