Constant-parameter direct interfacing of saturable synchronous machine models for electromagnetic transient programs
department or school: Applied Science, Faculty of
department or school: Electrical and Computer Engineering, Department of
data provider: DSpace
degree campus: UBCV
creator: Mostajeran, Erfan
issued: 2023-04-19T22:51:36Z
issued: 2023
related degree: Master of Applied Science - MASc
degree grantor: University of British Columbia
description: In today’s wider adaptation of renewable energy resources, computer simulations and power system transient studies play a vital and enabling role. For conducting the power system studies, the nodal-analysis-based electromagnetic transient program (EMT or EMTP)-type simulators have been widely accepted and used by researchers and engineers as the industry standard tools, wherein the synchronous machines are commonly represented by the general-purpose lumped-parameter models. The traditional machine models are expressed in qd0 coordinates, which represents a challenge when interfacing with external networks that are represented in abc physical variables and coordinates, often making the machine models the computational bottleneck of computer simulations. This thesis advances the state-of-the-art and develops computationally-efficient and accurate models of synchronous machines for EMTP-type solutions. To enhance the modelling fidelity, the main flux magnetic saturation is considered. Two groups of models are proposed based on voltage-behind-reactance (VBR) and phase-domain (PD) methodologies, respectively. The previously established models of this type possess rotor-position- and saturation-dependent interfacing circuit, which requires costly refactorization of the entire network conductance matrix at each time step. The new VBR and PD models are proposed that have a constant interfacing conductance matrix. Extensive computer studies demonstrate the superiority of the proposed models in terms of computational efficiency compared to other state-of-the-art models. It is envisioned that the new models will become adopted by many standard offline and real-time EMTP simulators.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/84356
note: CONSTANT-PARAMETER DIRECT INTERFACING OF SATURABLE SYNCHRONOUS MACHINE MODELS FOR ELECTROMAGNETIC TRANSIENT PROGRAMS by Erfan Mostajeran B.Sc., Isfahan University of Technology, 2020 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES (Electrical and Computer Engineering) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) April 2023 © Erfan Mostajeran, 2023 ii The following individuals certify that they have read, and recommend to the Faculty of Graduate and Postdoctoral Studies for acceptance, the thesis entitled: Constant-Parameter Direct Interfacing of Saturable Synchronous Machine Models for Electromagnetic Transient Programs submitted by Erfan Mostajeran in partial fulfilment of the requirements for the degree of Master of Applied Science in The Faculty of Graduate and Postdoctoral Studies Examining Committee: Dr. Juri Jatskevich, Professor, Electrical and Computer Engineering, UBC Supervisor Dr. Hermann Dommel, Professors Emeriti, Electrical and Computer Engineering, UBC Supervisory Committee Member Dr. Christine Chen, Associate Professor, Electrical and Computer Engineering, UBC Supervisory Committee Member iii Abstract In today’s wider adaptation of renewable energy resources, computer simulations and power system transient studies play a vital and enabling role. For conducting the power system studies, the nodal-analysis-based electromagnetic transient program (EMT or EMTP)-type simulators have been widely accepted and used by researchers and engineers as the industry standard tools, wherein the synchronous machines are commonly represented by the general-purpose lumped-parameter models. The traditional machine models are expressed in qd0 coordinates, which represents a challenge when interfacing with external networks that are represented in abc physical variables and coordinates, often making the machine models the computational bottleneck of computer sim…
has type: Thesis/Dissertation
date issued: 2023-05
is shown at: 10.14288/1.0431197
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
contributor: Jatskevich, Juri
type: Text
identifier URI: http://hdl.handle.net/2429/84356