Date of Award:

8-2021

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Electrical and Computer Engineering

Committee Chair(s)

Regan Zane

Committee

Regan Zane

Committee

Hongjie Wang

Committee

Yingying Zheng

Abstract

Batteries are a very common type of power source used for all sorts of applications. However, these batteries do not last forever. The purpose of this thesis is to explain and implement a strategy which allows batteries to have a second life; to be able to be re-charged and re-used for another set period of time once they no longer meet a system’s requirements. The preferable way to do this is to make each cell have the same state of charge (SOC) which will lead to a longer lasting battery pack. These batteries will be hooked up to a battery powered module (BPM) for charging, and these BPMs will need to be controlled by a battery management system (BMS). This BMS, also known as string controller board, sends commands to the several BPMs connected. This thesis goes over the strategy implemented to achieve this objective, with the result focusing on the regulation of output voltage and cell SOC.

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