Remote centralized online monitoring system and method for power distribution equipment battery

Abstract

A remote centralized online monitoring system for a storage battery of power distribution equipment comprises an FTU measurement and control terminal, a storage battery activation instrument, a master station online monitoring unit, a communication unit and a wireless maintenance display terminal. The FTU measurement and control terminal is used forcollected remote signaling signals and telemetered signals and uploads the collected signals to the master station online monitoring unit, the master station online monitoring unit is used for performing calculation analysis, comprehensive management and communication on real-time data of the FTU measurement and control terminal, and the wireless maintenance display terminal is in communication connection with the master station online monitoring unit. Under supporting of the system, the invention further provides an online monitoring method. The storage battery of the power distribution equipment is monitored online, fixed-period and remote control activation is performed on the storage battery, relevant data of the storage battery are analyzed, the health state of the storage battery is submitted in real time, and sorting is performed according to the severe emergency degree of the state of the storage battery and the importance of the power distribution equipment which the storage battery belongs to.

Description

technical field [0001] The invention relates to the field of distribution network equipment monitoring, in particular to a remote centralized on-line monitoring system and method for storage batteries of power distribution equipment. Background technique [0002] Distribution automation equipment is divided into two types: centralized type (current type) and voltage type. Voltage-type equipment has no battery, and it will automatically open when the power fails. Current-type equipment does not have the feature of automatic opening, and it must rely on the dispatcher or the master station system to remotely open the opening when the line is powered off. The storage battery is the only energy supply for the equipment in the case of a current-type equipment AC power failure or an accident, the only power supply for the remote control switch in the normal operation of the line or an accident, and the key equipment to ensure the normal communication of the equipment. If the hea...

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Problems solved by technology

[0003] (1) If the battery is under-voltage, when the line fails and the power is cut off, the remote control switch cannot be successfully opened, and it is necessary to manually rush to the scene to manually open the switch, which seriously affects the efficiency of fault handling, resulting in slow isolation of the accident area, and seriously affects the efficiency of restoring power transmission in non-faulty areas , restricting the improvement of power supply service level;

[0004] (2) If the battery capacity is insufficient, the capacity will be exhausted during the line power outage or line maintenance process, which will cause equipment communication interruption, and the dispatcher cannot monitor the equipment current, voltage, equipment health status and other information in real time, and the equipment is in a "blind adjustment" state , resulting in reduced battery life

[0005] At present, the off-line data analysis method is basically adopted for storage batteries in the distribution network. This analysis method has poor real-time performance and cannot meet the requirements of real-time detection of the distribution network.

Due to the inability to monitor the battery capacity online and the activation of some outdated batteries, it brings inconvenience to the operation monitoring of the distribution network and the timely restoration of power supply

Some batteries were scrapped ahead of time due to excessive discharge, resulting in huge resource waste, cost loss, and environmental pollution

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