Large-signal transient control in power electronics : an average-geometric framework
department or school: Applied Science, Faculty of
department or school: Electrical and Computer Engineering, Department of
data provider: DSpace
degree campus: UBCV
creator: Galiano Zurbriggen, Ignacio
issued: 2020-04-01T19:38:02Z
issued: 2020
related degree: Doctor of Philosophy - PhD
degree grantor: University of British Columbia
description: Switch-mode power converters are a fundamental component of modern power systems; they are ubiquitous in renewable energy applications, electric vehicles, battery chargers, and power supplies. Controllers are an essential component in power converters as they improve the converter's dynamic behaviour during transients and in steady-state. For decades, the power electronics industry has preferred to utilize controllers based on converter small-signal analysis due to their low implementation requirements and in spite of their dynamic performance limitations and global stability issues. On the other hand, excellent dynamic response and global stability are achieved by non-linear boundary controllers based on state-plane analysis, which usually have much higher implementation requirements. This thesis focuses on the dynamic performance improvement of power converters by incorporating state-plane concepts while maintaining low implementation requirements to facilitate the large-scale adoption of the technology. By combining traditional averaging modelling tools with state-plane analysis, the unified Average Natural Trajectories (ANTs) are obtained to accurately model the large-signal dynamic behaviour of the fundamental topologies (buck, boost, and buck-boost). As a result, the proposed framework establishes the foundation for several dynamic performance improvement efforts introduced in this thesis. Employing the ANTs as a large-signal model, the theoretical limits of dynamic performance are defined and used to develop a powerful benchmarking tool, providing great value for design engineers. Furthermore, a unified controller based on the ANTs model is developed for the fundamental topologies in this work. This controller features a predictable large-signal response and outstanding dynamic performance while maintaining low implementation requirements. The ANTs modelling approach is also extended to photovoltaic applications to develop an extremely fast maximum power poin…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/73884
note: Large-signal Transient Controlin Power Electronics: anAverage-Geometric FrameworkbyIgnacio Galiano ZurbriggenIng., Universidad Nacional de Co´rdoba, 2010M.A.Sc., The University of British Columbia, 2013A THESIS SUBMITTED IN PARTIAL FULFILLMENT OFTHE REQUIREMENTS FOR THE DEGREE OFDOCTOR OF PHILOSOPHYinThe Faculty of Graduate and Postdoctoral Studies(Electrical & Computer Engineering)THE UNIVERSITY OF BRITISH COLUMBIA(Vancouver)March 2020c© Ignacio Galiano Zurbriggen 2020The following individuals certify that they have read, and recommend to the Faculty ofGraduate and Postdoctoral Studies for acceptance, the dissertation entitled:Large-signal Transient Control in Power Electronics: an Average-Geometric Frameworksubmitted by Ignacio Galiano Zurbriggen in partial fulfilment of the requirements forthe degree of Doctor of Philosophyin Electrical and Computer EngineeringExamining Committee:Martin Ordonez, Professor, Electrical and Computer Engineering, UBCSupervisorJose´ Mart´ı, Professor, Electrical and Computer Engineering, UBCSupervisory Committee MemberJohn Madden, Professor, Electrical and Computer Engineering, UBCUniversity ExaminerRyozo Nagamune, Associate Professor, Mechanical Engineering, UBCUniversity ExaminerYan-Fei Liu, Professor, Electrical and Computer Engineering, Queens UniversityExternal ExaminerAdditional Supervisory Committee Members:William Dunford, Professor, Electrical and Computer Engineering, UBCSupervisory Committee MemberiiAbstractSwitch-mode power converters are a fundamental component of modern power systems; theyare ubiquitous in renewable energy applications, electric vehicles, battery chargers, and powersupplies. Controllers are an essential component in power converters as they improve the con-verter’s dynamic behaviour during transients and in steady-state. For decades, the powerelectronics industry has preferred to utilize controllers based on converter small-signal analy-sis due to their low implementation requirements and in spite of the…
has type: Thesis/Dissertation
date issued: 2020-05
is shown at: 10.14288/1.0389714
language: eng
degree discipline: Electrical and Computer 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/2429/73884