A method for preventing misoperation of relay protection devices in intelligent substations

Abstract

The invention relates to a method for preventing misoperation of a relay protection device in an intelligent substation. The invention first performs reverse operation on the CPU calculation results of the two operation records of the relay protection device to form a corresponding disassembly code; then according to the obtained disassembly code Calculate the similarity of the two operation records; finally judge whether the obtained similarity is greater than the set threshold, if greater, then determine that the two operation results are the same, otherwise, determine that the two operation results are different, according to the present invention, the operator can compare Whether the actual operation result is consistent with the correct result that the actual operation should achieve is to determine whether the device has been misoperated. On the one hand, the present invention avoids the misoperation of the relay protection device when the intelligent substation is put into operation, especially in the case of reconstruction and expansion, which is beneficial to reduce the probability of accidents during the operation of the relay protection device; Provide important references, which is beneficial to reduce the work intensity of operators and improve work efficiency.

Description

technical field [0001] The invention relates to a method for preventing misoperation of a relay protection device of an intelligent substation, and belongs to the technical field of relay protection of electric power systems. Background technique [0002] With the continuous advancement of technology, the accumulation of construction experience and the increasing improvement of relevant standards and specifications, smart substations have entered a stage of rapid development in my country. As an important part of the substation and the relay protection to ensure the safety and stability of electric power, the number of its operation and maintenance is increasing day by day. How to prevent the misoperation of the relay protection device when the substation is put into operation, especially in the process of reconstruction and expansion, has been highly regarded by various power companies. focus on. [0003] At present, the relay protection device of the smart substation must...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preventing the misoperation of the relay protection device of the intelligent substation, so as to solve the misoperation problem in the process of commissioning, reconstruction and expansion of the intelligent substation

Images