Lithium ion (Li-Ion) and lithium polymer (Li-Po) batteries need to be used within certain voltage/current limits. Failure to observe these limits may result in damage to the battery. In this work, we propose a low voltage battery management system (LV-BMS) that balances the processes of the battery cells in the battery pack and the activating-deactivating of cells by guaranteeing that the operation is within these limits. The system operates autonomously and provides energy from the internal battery. It has a modular structure and the software is designed to control the charging and discharging of eight battery cells at most. A STM32F103 microcontroller is used for system control. The fuzzy logic controller (FLC) is used to set the discharge voltage limit to prevent damage to the battery cells, shorten the settlement time and create a specialized design for charge control. The proposed structure enables solar panel or power supplies with di erent voltage values between 5 V and 8 V to be used for charging. The experimental results show there was a 42% increase in usage time and the voltage di erence between the batteries was limited to a maximum of 65 mV. Moreover, the charge current settles at about 20 ms, which is a much faster response when compared to a PID controller.


    Access

    Download


    Export, share and cite



    Title :

    Low Voltage Battery Management System With Internal Adaptive Charger and Fuzzy Logic Controller



    Publication date :

    2020-01-01


    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



    Fast charger with fuzzy-logic decision

    Peng,J. / Chen,Y. / Purdue Univ.,West Lafayette,US | Automotive engineering | 1999


    F-22 Aircraft Battery-Charger-Controller System

    Stoneham, T. A. / Society of Automotive Engineers | British Library Conference Proceedings | 1999


    F-22 Aircraft Battery-Charger-Controller System

    Stoneham, Thomas A. | SAE Technical Papers | 1999


    Management system and management method of battery and battery charger, and battery charger

    KURAISHI MAMORU / HIROSE SHINJI / NISHIGAKI KENJI et al. | European Patent Office | 2018

    Free access

    Design of battery charging system with fuzzy logic controller

    Liang, Y.C. / Ng, T.K. | Tema Archive | 1993