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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/33458

Title: Ultracapacitor/Battery Hybrid Energy Storage Systems for Electric Vehicles
Authors: Moshirvaziri, Mazhar
Advisor: Trescases, Olivier
Department: Electrical and Computer Engineering
Keywords: Ultracapacitor
Electric Vehicle
Hybrid Energy Storage System
Light Electric Vehicle
Half-bridge Converter
DC-DC Converter
Quasi Resonant
Pulse Frequency Modulation
Variable Frequency Quasi-resonant
Zero Voltage Switching
High Efficiency
Power Mix Optimizer
Global Positioning System
Bi-directional DC-DC Converter
Project EVE
Issue Date: 22-Nov-2012
Abstract: This thesis deals with the design of Hybrid Energy Storage System (HESS) for Light Electric Vehicles (LEV) and EVs. More specifically, a tri-mode high-efficiency non-isolated half-bridge converter is developed for the LEV based HESS applications. A 2 kW, 100 V interleaved two-phase converter prototype was implemented. The peak efficiency of 97.5% and a minimum efficiency of 88% over the full load range are achieved. Furthermore, a power-mix optimizer utilizing the real-time Global Positioning System (GPS) data for the EV based HESS is proposed. For a specific design, it is shown that at the cost of less than 1.5% of the overall energy savings, the proposed scheme reduces the peak battery charge and discharge rates by 76% and 47%, respectively. A 30 kW bi-directional dc-dc converter is also designed and implemented for future deployment of the designed HESS into a prototype EV, known as A2B.
URI: http://hdl.handle.net/1807/33458
Appears in Collections:Master

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