Remote fault detection and processing system of DC power supply screen

Abstract

The invention relates to a remote fault detection and processing system of a DC power supply screen, which comprises a high-frequency intelligent PLC (Programmable Logic Controller), a background debugging PC (Personal Computer), a PLC communication module and a background communication module, wherein the high-frequency intelligent PLC is connected with the PLC communication module, the background communication module is connected with the background debugging PC, and the PLC communication module is connected with the background communication module. Compared with the prior art, the invention can save manpower and material resources, greatly reduces the maintenance cost of a faulty DC screen, shortens the maintenance time of the faulty DC screen and increases the stable operation reliability of the DC power supply screen.

Description

technical field [0001] The invention relates to a DC power panel, in particular to a remote fault detection and processing system for a DC power panel. Background technique [0002] The function of the DC power supply screen in the power system is: when the AC power is normal, it provides a closing DC power supply for the circuit breaker in the substation; The tripping and closing of the switch, and the factory machinery driven by the DC motor of the power plant provide working DC power. Whether it is normal or not directly affects the safe and reliable operation of the power system. In the past, each substation in the power system was manned, and the operation status of the DC equipment could be checked regularly, so abnormal phenomena could be detected and dealt with in time to ensure the safe and stable operation of the substation. At present, the power system promotes unattended substations. Although the dispatch center can obtain real-time information on the operation...

AI Technical Summary

Problems solved by technology

At present, the power system promotes unattended substations. Although the dispatch center can obtain real-time information on the operation of the substation through the telecontrol channel, only a small amount of important information can be obtained for the DC part.

It cannot reflect the detailed information on the operation of the DC system, especially when the system has just started to operate abnormally or has already experienced operational failure. Due to the lack of maintenance personnel and the limitation of professional technical level, the abnormal operation and the cause of the failure cannot be accurately found, and the accident may will expand

Moreover, in the microcomputer control system of the DC power panel in the past, the microcomputer control program must be on site to monitor in real time, and the cause of failure without professional equipment can only be found from the phenomenon

Once the DC power panel fails, the manufacturer must send professionals to the scene to find and deal with the cause of the failure, which delays the time for troubleshooting

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