ERA

Download the full-sized PDF of Analysis and Design Approach for Converters with Large Signal VariationsDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3CR5NP6G

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Analysis and Design Approach for Converters with Large Signal Variations Open Access

Descriptions

Other title
Subject/Keyword
Converter analysis
Resonant converters
Laplace transform
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Daryaei, Mohammad
Supervisor and department
S. Ali Khajehodding (Electrical and Computer Engineering)
Examining committee member and department
Yunwei Li (Electrical and Computer Engineering)
Greg Kish (Electrical and Computer Engineering)
Department
Department of Electrical and Computer Engineering
Specialization
Energy Systems
Date accepted
2016-09-12T14:34:25Z
Graduation date
2016-06:Fall 2016
Degree
Master of Science
Degree level
Master's
Abstract
Accurate large signal analysis of Power Electronics converters is essential for achieving high performance and reliable designs. Converter topologies with large signal variations are conventionally analyzed using numerical methods, averaged models, or inaccurate analyses. In this thesis, a Laplace based theorem (LBT) is developed to analyze and derive the steady state response of a class of switching-mode power converters that can be modeled by Ordinary Differential Equation with periodic input. Although LBT is based on Laplace transform which is a linear system analysis tool, it introduces a new tool to analyze a piecewise linear system such as switching power converter. The proposed method is especially useful to analyze resonant converters and has many applications in the design and analysis of such converters and their control systems. The proposed method is applied to a full bridge Series Resonant Converter (SRC) topology with both variable duty cycle and variable frequency control. Using the proposed method continuous/discontinuous conduction modes (CCM/DCM) of SRC are analyzed. Closed form and analytical expressions for converter gain, current phase lag, and ZVS boundary are found and novel optimized converter design approach is proposed without resorting to numerical iterations. The LBT method derivations are compared with existing averaged and inaccurate methods and are also validated by simulations and experimental results.
Language
English
DOI
doi:10.7939/R3CR5NP6G
Rights
This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for the purpose of private, scholarly or scientific research. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2016-09-12T20:34:26.351+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (PDF/A)
Mime type: application/pdf
File size: 2303620
Last modified: 2016:11:16 13:00:26-07:00
Filename: Daryaei_Mohammad_201609_MSc.pdf
Original checksum: efb89e6c60db22d0bffaf1e2cf976d74
Activity of users you follow
User Activity Date