Detection Device of Transformer Substation Battery Pack Based on Wireless Communication Technology

doi:10.16628/j.cnki.2095-8188.2022.07.006

Abstract

Abstract:

In order to ensure that the battery pack provides uninterrupted power supply for the load in case of AC power failure,configuring the battery monitoring device to monitor the battery state in real time has become a conventional scheme of DC power supply system in important substations.A set of distributed battery detection device based on wireless communication for 2 V battery pack is designed.The system is composed of a monitoring unit and several test units.The device is equipped with a test unit for 3 or 4 batteries in series.The single chip microcomputer built-in analog-to-digital conversion module is used in the test unit,which can detect the corresponding battery terminal voltage in real time and configure the resistance discharge module at the same time.The monitoring unit uses wireless communication to call the test unit with station number in broadcast mode to obtain data,and sends internal resistance detection command in response to on-site manual command or remote control command.The test unit uses twi-discharge method to realize on-line detection of corresponding battery internal resistance.The experimental results show that the device can effectively measure the battery voltage and internal resistance.

Key words: battery, wireless communication, measuring unit, twi-discharge, internal resistance

CLC Number:

TM912

MA Yan, WU Hang, ZHOU Ya, CAO Hai, HUANG Haihong. Detection Device of Transformer Substation Battery Pack Based on Wireless Communication Technology[J]. LOW VOLTAGE APPARATUS, 2022, 0(7): 36-40.

Figures/Tables 12

References 11

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电池编号	1次放电电流/A	2次放电电流/A	计算的内阻值/mΩ
1	21	38	1.64
2			1.68
3			1.36
4			1.68

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