Practical Methods in Li-ion Batteries: for Simplified Modeling, Battery Electric Vehicle Design, Battery Management System Testing and Balancing System Control

This thesis presents, as a collection of papers, practical methods in Li-ion batteries for simplified modeling (Manuscript I and II), battery electric vehicle design (III), battery management system testing (IV and V) and balancing system control (VI and VII).
• Manuscript I tackles methodologies to parameterize battery models based solely on manufacturer’s datasheets
• Manuscript II presents a parameterization method for battery models based on the notion of direct current resistance
• Manuscript III proposes a battery electric vehicle design that combines fixed and swappable packs
• Manuscript IV develops a battery system model for battery management system testing on a hardware-in-the-loop simulator
• Manuscript V extends the previous work, introducing theoretical principles and presenting a practical method to develop ad hoc software and strategies for testing
• Manuscript VI presents a preliminary offline evaluation of a ‘multi-objective’ control approach for balancing systems
• Manuscript VII provides a comprehensive evaluation of the impact on battery performance of the additional control features introduced in Manuscript VI
In addition, this thesis gives an introduction; a state-of-the-art review; a problem statement; an overview of the modeling methods; and a summary of the papers and their contributions, limitations and potential for future work.