Electric power fault wave recording device with dual processor structure

Abstract

The invention relates to the field of electric power, in particular to an electric power fault wave recording device with a dual processor structure. The device comprises a voltage transformer, a current transformer, a signal conditioning device, an A / D converter, a slave single-chip microcomputer, a master single-chip microcomputer, a liquid crystal displayer, a human-computer interaction device, a USB interface, a clock circuit, an on-off input circuit, an optoelectronic isolation device and a schmitt trigger. According to the electric power fault wave recording device with the dual processor structure, high-speed collected and input voltage and current, on-off contact signals and other electric quantities are converted to digital signals, sampling frequency is high, and the requirement for high-speed recording is met; in addition, dual processor control is used for achieving data processing, data storage and human-computer interaction, the storage capacity for fault data is large, and upgrade and capacity expansion are facilitated.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a power fault recording device with a dual-processor structure. Background technique [0002] With the continuous optimization and transformation of the power system, the degree of automation of my country's power system is getting higher and higher, EMS (Energy Management System), SCADA (Data Acquisition and Monitoring Control System), DMS (Distribution Management System), R1U (Remote Terminal Unit ) and most of the equipment have been introduced and digested to achieve localization, and the important substations of the power supply system have been unattended. The future development is to gradually realize all unattended non-important substations. At the same time, in the power system, due to natural disasters, equipment aging and various human reasons, power system failures will inevitably occur, which will cause huge impacts and losses on production, life, and the national econo...

AI Technical Summary

Problems solved by technology

The computer is equipped with a general-purpose analysis software package, which can perform data processing in a centralized manner, but the price of the wave recording device is too high, so that there are certain economic problems in the general installation in the substation. In addition, the wave recording device needs to be equipped with a special fault analysis Software, to build an independent wave recording network, requires a large investment and high technical requirements, and is not suitable for the current substation system that still focuses on the centralized screen structure and the network function is not perfect

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