Engineering Commons^™

Battery Management System, Michael Desando, Kyle Woody

Electrical Engineering

Problem Statement:

There have been recent reports of multi-million dollar companies having to recall entire projects due to their BMS’s malfunctioning or operating incorrectly. The purpose of this project is to analyze the future of batteries, the Lithium-Ion cell, and to exercise a BMS to better understand its capabilities and possible cases for errors. Lithium ion batteries are intolerant of overcharge and overdischarge. Abuse of this kind can result in high temperatures, venting of gases, fire, or explosion. Therefore battery management systems have been devised to prevent such abuse. Recent events such as fires on the Boeing Dreamliner and the …

Development Of A Testing Platform For Secondary-Use Electric Vehicle Batteries As Community Energy Storage Systems, Thomas Benjamin Ollis

Masters Theses

Energy storage is quickly transforming from a commodity to a necessity for electric utilities. The peak demand on the electric grid continues to grow, requiring more sources of generation and upgrades to infrastructure. The variability of renewable generation sources, such as wind and solar, has created more uncertainty on the generation side of the electric grid. Energy storage represents one possible solution to mitigate the demand and uncertainty; however, energy storage systems have historically been too expensive to recoup their capital cost. More recently, research into electric vehicle batteries has brought their cost down and improved performance. As they continue …

Dc Microgrid Stabilization Through Fuzzy Control Of Interleaved, Heterogeneous Storage Elements, Robert David Smith

Dissertations, Master's Theses and Master's Reports - Open

As microgrid power systems gain prevalence and renewable energy comprises greater and greater portions of distributed generation, energy storage becomes important to offset the higher variance of renewable energy sources and maximize their usefulness. One of the emerging techniques is to utilize a combination of lead-acid batteries and ultracapacitors to provide both short and long-term stabilization to microgrid systems.

The different energy and power characteristics of batteries and ultracapacitors imply that they ought to be utilized in different ways. Traditional linear controls can use these energy storage systems to stabilize a power grid, but cannot effect more complex interactions. This …