Dr. John Miller joined Maxwell in December 2005, assuming primary responsibility for developing and promoting ultracapacitor-based solutions for the automotive and heavy vehicle industries. Previously, he spent 18 years in a series of engineering and research and development positions with the Ford Motor Company, where he led several Ford automotive electronics and electric and hybrid drive train development programs before taking early retirement in 2002. Immediately prior to joining Maxwell, he spent three years as an industry consultant, author and guest lecturer. He holds 51 patents and has written more than 140 scientific and technical papers and three books, including Hybrid Vehicle Propulsion Systems, which was published in 2003. He holds a BS degree from the University of Arkansas, an MS degree from Southern Methodist University and a doctorate from Michigan State University, all in electrical engineering.

 Power Electronics in Energy Storage Systems: Advancing the Technology Frontiers

 

There are now very impressive developments in dc-dc converters ranging from high current, low voltage, VRM’s to industrial power supplies capable of near MW outputs.  In this talk two application areas are highlighted: military power and energy systems and passenger car and other traction applications.  For over a decade now researchers have investigated energy storage systems and how their performance attributes such as cycling capability, calendar life, state-of-charge operating window and overall performance can be improved by combination technologies augmented with dc-dc converters.  This presentation will focus on the needs of fast response dc-dc converters as the interface buffer between an ultracapacitor as power cache and advanced chemistry battery as energy reservoir.  Electrical architectures of the active parallel type are considered for these illustrations.

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