Open AccessBattery Management System Performance Enhancement using Single Sliding Mode Based Charge Equalization Controller
Author(s) -
Ali Ashraf,
Abdul-Azim Sobaih,
Essam Nabil
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2128/1/012026
Subject(s) - chopper , battery (electricity) , controller (irrigation) , battery pack , state of charge , computer science , control theory (sociology) , sliding mode control , equalization (audio) , lithium ion battery , power (physics) , electrical engineering , voltage , automotive engineering , engineering , physics , agronomy , channel (broadcasting) , control (management) , quantum mechanics , artificial intelligence , nonlinear system , biology
In this paper, the study aims to evolve a precision model of a Battery charge equalization controller (BCEC) that manage each cell of a lithium-ion (Li-ion) battery, monitoring a nd balancing by charging a nd discharging a series-connected Li-ion battery with several cells (n) in electric vehicle (E.V.) applications. An intelligent Sliding mode controller is evolved to activate bidirectional cell switches and regulate a chopper circuit’s direct current (DC-DC flyback converter circuit) with PWM generation. To implement a small-scale BCEC, the model consists of individual models of an E.V., cells of Li-ion battery, a fly-back converter, and a single sliding mode controller (SSMC) for charging and discharging are integrated with n series-connected cells of Li-ion-battery. The BCEC output shows that the cells are operated within a safe range, and the difference in the state of charge (SOC) is maintained to be 0.1%. Comparing the developed BCEC with the existing controllers, with the performance, control algorithm, efficiency, power loss, size, and cost.