Online monitoring system and online monitoring method for substation storage batteries

Abstract

The invention discloses an online monitoring system for substation storage batteries. The online monitoring system is characterized by consisting of a master control module, a node module and sensors; the master control module comprises an NXP LPC1700 microcontroller, a status indicator lamp, a communication interface, a signal analogue-to-digital / digital-to-analogue conversion module, a battery pack total voltage sensor, a battery pack total current sensor and a power supply. As a master-slave separated network structure is adopted by the online monitoring system disclosed by the invention, the storage batteries of which the number is not greater than 120 can be integrally and singly by one main module respectively; as an RJ45 / IEEE802.3 communication interface communicates with a computer of a management center, compared with the traditional communication interface, the RJ45 / IEEE802.3 communication interface has the advantages that the transmission is more reliable, the speed is high and the like; the node module capable of temporarily storing status data of a single battery is provided with an on-chip flash, and when the master control module needs to access to the data, the data can be read directly through the flash, and therefore the time of data interaction is prolonged, the reliability of a whole standby power supply system can be enhanced favorably, the operation and maintenance cost is reduced, and the work efficiency is increased.

Description

technical field [0001] Aiming at problems such as various failures and greatly shortened service life of substation batteries during use, the present invention introduces an online monitoring scheme for battery packs and battery cells. The scheme follows the master-slave modular design, in which the main control module Responsible for monitoring the status of the battery pack, querying the status of the single battery and executing commands, communicating with the host computer, and using the I2C serial bus to manage the link of each single battery measurement unit. Background technique [0002] As the backup power supply for protection, control, signal and communication devices, the substation battery pack is extremely critical for its stability, durability and health status. At present, the detection of battery packs still uses manual inspection, which is prone to human error. Therefore, a fast, accurate, reliable and safe battery on-line monitoring technology is particula...

AI Technical Summary

Problems solved by technology

[0002] As a backup power supply for protection, control, signal and communication devices, the battery pack in a substation is critical to its stability, durability and health status. At present, the battery pack is still detected by manual inspection, which is prone to human error. Therefore, a fast, accurate, reliable and safe battery online monitoring technology is particularly important

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