Network message monitoring and fault recording integrated device for intelligent transformer substation

Abstract

The invention relates to a network message monitoring and fault recording integrated device for an intelligent transformer substation. The device comprises a signal access unit, a signal processing and analyzing unit and an information output unit, wherein the signal access unit is used for receiving comprehensive signals, which contain a primary system signal and a secondary system signal of the intelligent transformer substation and transmitting the comprehensive signals to the signal processing and analyzing unit; the signal processing and analyzing unit is used for analyzing the comprehensive signals of the intelligent transformer substation; and the information output unit is used for outputting the alarm signal-containing comprehensive signal analyzing result after the analysis of the comprehensive signals. The device comprehensively analyzes the comprehensive signals, which contain the primary system signal and the secondary system signal, brings great convenience to operation, maintenance, modulation and breakdown maintenance, shortens the troubleshooting time, improves the power supply quality of the intelligent transformer substation, saves the space occupied by the traditional equipment and saves investment.

Description

technical field [0001] The invention relates to the technical field of monitoring and recording signal data of an intelligent substation in a power system, in particular to a device for monitoring and recording network messages and transient fault recording based on an intelligent substation. Background technique [0002] The smart grid is the future development direction of the power system, and the smart substation is the key node of the smart grid. The main feature of the smart substation is a layered construction of intelligent primary equipment and networked secondary equipment. It is based on the IEC61850 standard and is a modern substation that can realize information sharing and interoperability among intelligent electrical equipment in the substation. [0003] The IEC61850 standard is the only international standard for substation automation systems based on a general network communication platform. It is formulated by three working groups 10, 11, and 12 (WG10 / 11 / 12...

AI Technical Summary

Problems solved by technology

[0005] At present, only some of the smart substations put into trial operation in China are equipped with dedicated fault recording devices or message recording devices. Fault

In smart substations, due to the networking of sampling and control information, many faults no longer have obvious boundaries like traditional substations, but there are complex correlations. The above two independent devices are used to analyze faults , operating personnel often need to spend a long time and energy to find relevant data from two independent devices and integrate them manually to conduct comprehensive analysis, which not only brings inconvenience to operation, maintenance, commissioning and accident repair, but also Will prolong troubleshooting time and degrade power quality

In addition, two independent devices are used. During the construction of the substation, special cables need to be laid for the two devices, occupying an independent panel cabinet space, making the wiring of the substation complicated and increasing the investment.

Images