Transformer substation link diagnosis device and method based on three-layer signal analysis

Abstract

The invention relates to a transformer substation link diagnosis device and method based on three-layer signal analysis. The device comprises an automatic acceptance unit, and an SCD and RCD file analysis unit, a point table acquisition unit, a message signal capture unit, a point number selection unit and an automatic acceptance unit which are connected with the automatic acceptance unit. According to the method, the workload of fault point positioning in joint debugging acceptance is greatly reduced, the acceptance speed is increased, the acceptance report is generated according to the actual situation, the problem that the time consumption from problem discovery to defect elimination is too long in the previous acceptance process is fundamentally solved, and the acceptance requirementsof modern intelligent substations can be met.

Description

technical field [0001] The invention relates to a diagnosis device, in particular to a substation link diagnosis device based on three-layer signal analysis, and also relates to a diagnosis method thereof, which belongs to the field of substation inspection and acceptance. Background technique [0002] Due to the gradual change of the current power grid operation mode, the monitoring mode of the substation has gradually changed to a centralized mode, and the signals on the plant side need to be uploaded to the main station side for unified reception and monitoring. Therefore, the point table consistency between the master station side and the factory station side is particularly important. In the acceptance process of the main and sub-stations, the joint commissioning acceptance is one of the links, and the main body of the acceptance is the point table, so this link is becoming more and more important and needs to be handled carefully by the staff. [0003] However, the jo...

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Problems solved by technology

[0003] However, the joint commissioning and acceptance link takes up a relatively short period of time for the overall acceptance. The on-site acceptance personnel have high work pressure, high intensity, and heavy responsibilities, and the relationship between the main station and sub-stations is not one-to-one. The main station can connect multiple sub-stations, making the pressure The workload is more arduous and heavy, and the quality and efficiency of acceptance cannot be guaranteed under the intervention of human factors

When there is a problem with a certain signal, the acceptance personnel still use the original working mode to eliminate the defect one by one from the equipment that sends out the signal all the way to the master station, resulting in repeated execution of meaningless work. Since the failure point cannot be accurately located, the acceptance People are more impatient

Moreover, the current acceptance method is still the traditional one-by-one manual acceptance, which is inefficient and cannot guarantee the same acceptance quality for each signal. Therefore, an automatic joint debugging and acceptance device that can accurately locate the fault point is urgently needed

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