Relay protection setting value automatic checking and correcting device and method based on intelligent identification technology

Abstract

The invention relates to the technical field of transformer substation maintenance, and particularly discloses a relay protection setting value automatic checking and correcting device and method based on the intelligent identification technology, and the device comprises a single-chip microcomputer processing module and a communication module which is used for collecting the information of a field relay protection device, and the communication module is in communication connection with the single-chip microcomputer processing module. The single-chip microcomputer processing module is in communication connection with the constant value display and alarm module, and the power supply module is used for providing electric energy for the communication module, the single-chip microcomputer processing module and the constant value display and alarm module. The method has the beneficial effects that intelligent identification of the constant value list of the relay protection system of the transformer substation is realized, so that automatic modification and checking of the protection constant value are completed, and error detection and missing detection during manual correction are reduced. The application of project achievements can greatly reduce the workload and the labor intensity of operation and maintenance personnel, improves the operation and maintenance inspection work efficiency and the technical level of the transformer substation, and has important practical significance.

Description

technical field [0001] The invention relates to the technical field of substation maintenance, in particular to a device and method for automatically checking and correcting relay protection fixed values ​​based on intelligent identification technology. Background technique [0002] At present, the relay protection department generally uses special relay protection setting calculation software to calculate the setting value of the protection device, and then generates a protection setting value list, which is reviewed and approved and then sent to each plant station for execution by on-site personnel. Although some domestic network and provincial bureaus have realized the electronic circulation of operations such as the generation, review, and approval of rating sheets within the relay protection department of the dispatching center, when the process of transferring the rating sheets in the relay protection department is completed, The fixed value list to be executed must st...

AI Technical Summary

Problems solved by technology

[0003] 1) The issuance and execution of the fixed value list involves many manual operations. When a large amount of data is entered, the wrong fixed value may be entered, so it is difficult to ensure the accuracy of the fixed value information

[0004] 2) The dispatch center cannot directly manage the actual operating fixed value of the protection device, so once the on-site staff enters a wrong value, it is difficult for the dispatch center to quickly find out and correct it, making the power system a potential safety hazard

[0005] 3) The fixed value check needs to be done manually, and it is difficult to cover every set of protective devices by regular fixed value checks

[0011] Domestic and foreign research institutes have made some preliminary achievements in theoretical research on automatic calibration of substation relay protection settings, but there are few practical studies. The main reason is that the accuracy and reliability of automatic calibration of fixed values ​​are still not as good as relevant users After searching, there is no application report on the mature products that can identify and proofread the relay protection and setting value volume.

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