Efficient modelling of special purpose multi-phase electrical machines for transient simulation programs
department or school: Applied Science, Faculty of
department or school: Electrical and Computer Engineering, Department of
data provider: DSpace
degree campus: UBCV
creator: Amiri, Navid
issued: 2019-11-28T16:57:33Z
issued: 2019
related degree: Doctor of Philosophy - PhD
degree grantor: University of British Columbia
description: Design and analysis of power systems has always been reliant on mathematical models of power system components and their implementation in sophisticated electromagnetic transient (EMT) simulation programs. Electric machines are the dominantly used components in models of power grids, and in most simulation programs rotating machines are represented using lumped-parameter models based on magnetically-coupled phase windings. Advancements in semi-conductor devices have allowed conventional three-phase machines as well as multi-phase machines (with more than three electrical phases) to be used with power electronic interfaces in wide range of electromechanical energy conversion applications, including advanced motor drive systems as well as integration of renewable energy. The multi-phase machines, at the expense of their increased complexity, may also provide additional advantages over the conventional three-phase machines, e.g. reduced power per phase, reduced semi-conductor current/voltage rating per phase, increased reliability, fault tolerant operation, etc. However, such multi-phase machines have unique electromagnetic characteristics and complex mathematical models which also become additional challenge in terms of both implementation and numerical performance in simulation programs. The main goal of this dissertation is to propose accurate and numerically efficient models of multi-phase machines which also consider key characteristics such as magnetic saturation and flux harmonics. In this dissertation, the voltage-behind-reactance (VBR) methodology has been used to derive new models for wound-rotor six-phase synchronous machines (including leakage flux cross-coupling and magnetic saturation), five-phase machines (including flux harmonics and inter-harmonic couplings) and also three-phase saturable induction machines considering flux harmonic distortions. The new models possess the advantage of constant-parameter interfacing circuits when implemented in state-va…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/72461
note: i Efficient Modelling of Special Purpose Multi‐Phase Electrical Machines for Transient Simulation Programs by Navid Amiri B.Sc., Isfahan University of Technology, 2008 M.Sc., Isfahan University of Technology, 2011 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in The Faculty of Graduate and Postdoctoral Studies (Electrical and Computer Engineering) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) November 2019 © Navid Amiri, 2019 ii The following individuals certify that they have read, and recommend to the Faculty of Graduate and Postdoctoral Studies for acceptance, the dissertation entitled: Efficient Modelling of Special Purpose Multi-Phase Electrical Machines for Transient Simulation Programs submitted by Navid Amiri in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical and Computer Engineering Examining Committee: Dr. Juri Jatskevich Supervisor Dr. Hermann Dommel Supervisory Committee Member Dr. John Madden University Examiner Dr. Yusuf Altintas University Examiner Additional Supervisory Committee Members: Dr. Yu Christine Chen iii Abstract Design and analysis of power systems has always been reliant on mathematical models of power system components and their implementation in sophisticated electromagnetic transient (EMT) simulation programs. Electric machines are the dominantly used components in models of power grids, and in most simulation programs rotating machines are represented using lumped-parameter models based on magnetically-coupled phase windings. Advancements in semi-conductor devices have allowed conventional three-phase machines as well as multi-phase machines (with more than three electrical phases) to be used with power electronic interfaces in wide range of electromechanical energy conversion applications, including advanced motor drive systems as well as integration of renewable energy. The multi-phase machines, at the expense of their increased comp…
has type: Thesis/Dissertation
date issued: 2020-05
is shown at: 10.14288/1.0386026
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/2429/72461