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Adaptive passive balancing in battery management system for e‐mobility
Author(s) -
Duraisamy Thiruvonasundari,
Kaliyaperumal Deepa
Publication year - 2021
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6560
Subject(s) - battery (electricity) , state of charge , resistor , battery pack , computer science , lithium ion battery , voltage , load balancing (electrical power) , electronic engineering , electrical engineering , engineering , automotive engineering , power (physics) , physics , geometry , mathematics , grid , quantum mechanics
Summary Balancing the lithium‐ion battery pack is essential to enhance the energy usage and life cycle of the battery. This paper analyses passive cell balancing method of Li‐ion battery for e‐mobility application based on the energy loss and cost estimation through simulation and hardware implementation. As a part of the simulation, an electrical equivalent circuit battery model is developed and model parameters are obtained using electrochemical impedance spectroscopy test. The experimented passive balancing topologies include a switched shunting resistor circuit with appropriate control logic. Final voltage‐based balancing algorithm is implemented to balance the cells at high state of charge. Experimental results are compared against the theoretical investigation. Based on the outcome of this experiment, the most significant characteristics of the passive balancing system can be developed by considering the impact on the battery performance, energy loss, and cost.