Intelligent alarm and comprehensive judgment method of intelligent substation

Abstract

The present invention relates to an intelligent alarm and comprehensive judgment method of an intelligent substation. The method comprises the steps of (1) carrying out comprehensive analysis and judgment on the message recorded by a network message recording and analyzing device between a process layer and a station control layer for the network communication link of the intelligent substation, (2) for the related device in the SV network or GOOSE network of the intelligent substation, uploading the self-test information of the related device through GOOSE or MMS, and obtaining the corresponding message information to carry out comprehensive judgment by the network message recording and analyzing device. According to the method, the comprehensive analysis of the communication network of the substation can be effectively realized, an accident reason can be rapidly searched, and an effective support can be provided for the accident analysis of the entire substation and the accident analysis of substation equipment.

Description

technical field [0001] The invention belongs to the technical field of condition monitoring and condition maintenance of substation equipment, and relates to an intelligent alarm and comprehensive diagnosis method suitable for a network message recording and analyzing device of an intelligent substation. Background technique [0002] Smart substation has the advantages of convenient data sharing, simple secondary circuit, saving investment and occupying less land, which is the future development trend. The secondary circuit of the smart substation replaces the cable of the traditional substation with optical fiber, and can verify the physical continuity and logical correctness of the communication link through online communication data interaction. However, in practical applications, the maintenance of the secondary circuit is mainly carried out by manual periodic inspection, and the advantages of intelligence have not been well reflected. The results of the test method of ...

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Problems solved by technology

However, in practical applications, the maintenance of the secondary circuit is mainly carried out by manual periodic inspection, and the advantages of intelligence have not been well reflected

The results of the test method of regular maintenance are authentic and credible, the test items are complete, problems can be found, and potential safety hazards can be eliminated; but this method of repairing at specified time intervals without depending on the actual situation of the equipment will inevitably produce "surplus" "Maintenance", resulting in loss of effective use of equipment, waste of manpower, material resources, and financial resources, and even maintenance failures, and device failures between two inspections may not be discovered in time

[0003] In addition, when a communication circuit in the smart substation is interrupted or a device port fails, a large number of alarms will be generated, and it is difficult for the operation and maintenance personnel to quickly and accurately locate the fault, which puts forward high requirements for the comprehensive analysis ability of the operation and maintenance personnel

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