Electrical and Electronic Engineering - Theses

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Advanced management systems for large lithium-ion battery packs

Muenzel, Valentin ( 2016)

Electric vehicles coupled with low-emission energy generation and transmission hold strong potential for a less emission-intense future. The prevalence of electric vehicles on worldwide roads has grown substantially in recent years and as of the publication date of this thesis stands in excess of one million. However, the transition of electric vehicles into a mainstream means of transportation would be considerably facilitated by improvements on two core fronts: a reduction in capital cost, and an increase in driving range. In pure electric vehicles the battery pack is both the single most expensive component and the core component responsible for providing energy storage capacity that enables driving range. It therefore represents a logical point of focus in terms of the aforementioned core improvements. This thesis details research work conducted with the objective of improving the efficiency and cost-effectiveness of battery management systems for lithium-ion batteries used in electric vehicles. The work is divided into three distinct sections: on battery modelling, experimental testing and battery management system design. Each of these is covered in one chapter of this thesis.