A multilevel-multiphase DC-DC converter for use in battery-supercapacitor hybrid energy storage systems
department or school: Applied Science, Faculty of
department or school: Engineering, School of (Okanagan)
data provider: DSpace
degree campus: UBCO
creator: Lindsay, Tobias
issued: 2019-07-25T15:31:16Z
issued: 2019
related degree: Master of Applied Science - MASc
degree grantor: University of British Columbia
description: With the increasing interest of electric vehicles as a form of clean transportation, automotive manufacturers are pushing to release attractive electric vehicle models for consumers. The main limitation for electric vehicle development, is developing a battery with high energy density as well as a high power density without sacrificing the cycle life of the battery. One of the proposed solutions is using a hybrid energy storage system, which combines an energy storage device with a high power density, such as a supercapacitor, along with one with a high energy density, such as a lithium ion battery. This combination creates a more ideal energy storage system for use in electric vehicles, improving the batteries cycle life without sacrificing performance or range. This document discusses the supercapacitor hybrid energy storage system and the challenges involved in implementing a practical system, focusing on the DC-DC converter required to connect the supercapacitor to the battery. A novel startup technique and application of the flying capacitor multi-level, multi-phase bi-directional DC-DC converter will be presented and the simulation results of a practical prototype discussed. This includes the design, component selection, startup sequence and programing of the converter.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/71098
note: A Multilevel-Multiphase DC-DC Converter for use inBattery-Supercapacitor Hybrid Energy Storage SystemsbyTobias LindsayElectronics Engineering Technology Diploma, Okanagan College , 2013B.A.Sc, The University of British Columbia , 2016A THESIS SUBMITTED IN PARTIAL FULFILLMENTOF THE REQUIREMENTS FOR THE DEGREE OFMASTER OF APPLIED SCIENCEinTHE COLLEGE OF GRADUATE STUDIES(Electrical Engineering)THE UNIVERSITY OF BRITISH COLUMBIA(Okanagan)July 2019c© Tobias Lindsay, 2019The following individuals certify that they have read, and recommend to the Faculty ofGraduate and Postdoctoral Studies for acceptance, a thesis/dissertation entitled:A Multilevel-Multiphase DC-DC Converter for use in Battery-Supercapacitor Hybrid En-ergy Storage SystemsSubmitted by Tobias Lindsay in partial fulfillment of the requirements for thedegree of Master of Applied Science .Dr. Wilson Eberle, Faculty of Applied Science, UBC OkanaganSupervisor, ProfessorDr. Liwei Wang, Faculty of Applied Science, UBC OkanaganSupervisory Committee Member, ProfessorDr. Martin Ordonez, Faculty of Electrical and Computer Engineering, UBC VancouverSupervisory Committee Member, ProfessorDr. Alexander Uhl, Faculty of Applied Science, UBC OkanaganAdditional ExamineriiAbstractWith the increasing interest of electric vehicles as a form of clean transportation, automo-tive manufacturers are pushing to release attractive electric vehicle models for consumers.The main limitation for electric vehicle development, is developing a battery with high en-ergy density as well as a high power density without sacrificing the cycle life of the battery.One of the proposed solutions is using a hybrid energy storage system, which combines anenergy storage device with a high power density, such as a supercapacitor, along with onewith a high energy density, such as a lithium ion battery. This combination creates a moreideal energy storage system for use in electric vehicles, improving the batteries cycle lifewithout sacrificing performance o…
has type: Thesis/Dissertation
date issued: 2019-09
is shown at: 10.14288/1.0380173
language: eng
degree discipline: Electrical Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/71098