- Hardcover: 346 pages
- Publisher: Artech House Publishers (1 Oct. 2013)
- Language: English
- ISBN-10: 1608076598
- ISBN-13: 978-1608076598
- Product Dimensions: 15.2 x 1.8 x 22.9 cm
- Amazon Bestsellers Rank: 1,569,107 in Books (See Top 100 in Books)
- See Complete Table of Contents
A Systems Approach to Lithium-ion Battery Management (Artech House Power Engineering) Hardcover – 1 Oct 2013
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About the Author
Phil Weicker has spent over ten years as a pioneer in the area of electric vehicle propulsion and energy storage technology. He earned his Master's degree in computational electromagnetics from McGill University, Montreal, Quebec, Canada.
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Author Weicker, begins with a description of how lithium-ion batteries operate by the same electrochemical fundamentals as all batteries; but, a few important distinctions are important to consider in the development of battery management systems for lithium-ion based systems. Next, the author explains how large-format systems may be created using small-capacity cells such as the common cylindrical 18650 and 26650, or any other types of cells. In addition, he defines the black-box as describing all of the interfaces that the battery management system will have with both the battery cells; additional battery components, such as sensors and contactors; and, the host applications. The author also states that it may be possible to implement the simplest systems using a selection of definite-purpose integrated circuits, but this architecture is more commonplace with smaller systems operating at lower voltages intended for consumer electronics applications. Then, he continues by explaining why a number of battery voltages could be measured within a large-format system, including individual cells, groups, or modules of cells, all the way up to the entire series-connected string. The author then addresses why in many systems, contactor control is a vital function that must be implemented with diligence. Next, he covers important decisions that the battery management system must make are the rate of charge to optimize the utility of the system life of the batteries, overall efficiency, other factors, and when to terminate charging. In addition, the author cautions that battery management system designers should be aware of important differences in the safety aspects of ac and dc high-voltage systems. He also presents an overview of the network technologies commonly used; as well as, the types of information that are usually transferred via a communications bus. Then, the author discusses the reasons for having a representative equivalent circuit model and a number of methods to construct these models. Next, he focuses on possible approaches for identifying an appropriate model for obtaining values for the parameters to accurately represent the battery cells. Then, the author continues by explaining why in many applications, the power limit algorithm is potentially even more important than the state of change calculation. The author then addresses why in order to maintain battery performance over a long service life in a large-format battery system, it is usually necessary to implement a charge balancing strategy to account for differences in cell performance. Finally, he explains how more complicated modeling tools will be able to be implemented in battery management systems of the future.
With each new wave of battery improvements, battery management systems will need to keep up with the changes described in this book. In addition, this book also explains how the field of large-format battery systems is only the beginning; and, many new developments await in the area of battery management systems.
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