An online maintenance device and method for battery packs at feeder terminals

Abstract

The invention discloses an online maintenance device and method for a feeder line terminal battery pack. The device comprises a master control unit and a load resistor. The master control unit comprises a power supply component, a digital quantity input component, a digital quantity output component, a battery voltage monitoring component, a load control component, a micro control unit component,and a communication component. The device can carry out an on-load test and a discharge recovery capability and endurance test on the feeder line terminal battery pack, and sends the data and abnormalconditions in a maintenance process to a feeder line terminal core unit in order to forward the data and the abnormal conditions to a main station system for monitoring. The device is simple in structure and low in cost, can be conveniently embedded in the feeder line terminal, utilizes the components and the communication functions of the feeder line terminal, realizes comprehensive maintenanceand monitoring of the feeder line terminal battery pack, completes the battery pack performance test while maintaining the battery pack, and provides a comprehensive battery pack online maintenance method to ensure the stable operation of a feeder line terminal backup power supply system.

Description

technical field [0001] The invention relates to the field of distribution network automation, in particular to an online maintenance device and method for a storage battery pack at a feeder terminal. Background technique [0002] With the distribution network feeder automation technology gradually developing from the traditional way of manual troubleshooting and fault isolation to the way of automatically isolating the fault area by the feeder terminal and automatically and quickly restoring power supply. In the actual operation process, when the line fails and the feeder terminal executes the feeder automation process, it is often necessary to perform multiple opening and closing actions of the switch on the control column when the main power supply is out of power. Therefore, the development of feeder automation technology makes the feeder The terminal needs to be equipped with a battery pack backup power system with longer duration, stronger output capacity and better rel...

AI Technical Summary

Problems solved by technology

Since the battery pack cannot be maintained online, the life information of the battery pack at the feeder terminal cannot be obtained in time

However, the lifespan of the battery pack will decrease, which will cause the feeder terminal to fail to realize multiple opening and closing actions of the switch on the control column during the feeder automation process, which will cause the failure of the feeder automation function and cause unnecessary power distribution loss of the distribution network line.

Images