Automatic energy-saving online maintenance equipment and system for storage battery of power substation

Abstract

The invention provides automatic energy-saving online maintenance equipment for a storage battery of a power substation. The automatic energy-saving online maintenance equipment comprises an MCU circuit unit, a drive control circuit, and a full online charging and discharging and control circuit unit, wherein the full online charging and discharging and control circuit unit comprises a control input end, terminals A,B and C, and a large power diode D1, the anode of the large power diode D1 is connected with the terminal A, the cathode of the large power diode D1 is connected with the terminalB, the terminal A is connected with a positive electrode of a communication power supply, the terminal B is connected with a positive electrode of a storage battery group, the terminal C is connectedwith the negative electrode of the storage battery group, the control input end is connected with the output end of the drive circuit, the input end of the drive control circuit is connected with theMCU circuit unit, and the output end of the drive control circuit is connected with the control input end of the full online charging and discharging and control circuit unit. Potential safety hazardsof offline discharge operation, power supply and recovery of online maintenance and test are eliminated, and the automatic energy-saving online maintenance equipment has the advantages of energy conservation, easy operation, safe online power supply, automatic online charging after test, and recovery of equipotential connection.

Description

technical field [0001] The invention relates to power supply maintenance equipment in electric power substations, in particular to an automatic energy-saving online maintenance equipment and system for storage batteries in electric power substations. Background technique [0002] Due to the number of substations, the wide distribution and large scale of the existing 48V communication power backup battery packs in the power industry, the maintenance work has high labor intensity, high cost, high risk, heavy maintenance tasks, and waste of energy. As a result, most of the battery capacity discharge test and maintenance work has not been implemented in place, resulting in the ignorance of the actual capacity of the backup battery pack in the substation, and the unclear duration of emergency power supply. It is often impossible to effectively carry out emergency power generation dispatch management due to mains interruptions, often resulting in Substation communication interrupt...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an automatic energy-saving online maintenance equipment and system for batteries in power substations. Compared with the traditional offline test using intelligent dummy loads, it effectively solves the whole process of offline discharge operation, power supply and online restoration It has the advantages of energy saving, simple and safe operation, safe online power supply, automatic online charging and restoration of equipotential connection after the test is completed, etc.

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