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Permanent link (DOI): https://doi.org/10.7939/R34747276

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Wide Speed Range Operation of Concentrated Winding Interior Permanent Magnet Synchronous Machines Open Access

Descriptions

Other title
Subject/Keyword
IPMSM
Motors
CPSR
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Toulabi, Mohammad Sedigh
Supervisor and department
Andrew M Knight (Electrical and Computer Engineering, University of Alberta)
John Salmon (Electrical and Computer Engineering, University of Alberta)
Examining committee member and department
Nigel Schofield (Electrical and Computer Engineering, McMaster University)
Venkata Dinavahi (Electrical and Computer Engineering, University of Alberta)
Jeremy Sit (Electrical and Computer Engineering, University of Alberta)
Ashwin Iyer (Electrical and Computer Engineering, University of Alberta)
Department
Department of Electrical and Computer Engineering
Specialization
Energy Systems
Date accepted
2016-07-08T13:27:45Z
Graduation date
2016-06:Fall 2016
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
The design, simulation and experimental evaluation of an Interior Permanent Magnet Synchronous Motor (IPMSM) are investigated. The motor is designed to be capable of operation from either a concentrated single inverter supply or in an “Open-Winding” configuration using two converters. In order to investigate the relationships between geometry, circuit parameters and desirable performance, a parametric design of experiments study based on the changes to the motor geometry is conducted. Two Dimensional Finite Element Method (2D-FEM) is used to simulate the impact of geometric design changes on motor operation. In order to increase the voltage applied to each phase of the machine and extend the operating region, an IPMSM is modeled in an open winding structure fed by two isolated Voltage Source Converters using a dual inverter drive structure. Each converter is controlled to supply only either real power or reactive power. The motor performance is experimentally evaluated in single inverter and dual inverter drives. With a single inverter drive, a wide speed range (6.66 time base speed) is observed, with peak efficiency above 90%, both of which are close to the expectations from simulation analysis. To ensure a reliable performance for the open winding IPMSM using a dual inverter drive, a new control technique is proposed and verified. Two significant contributions are made. The first is to evaluate the motor geometry changes and their impact on the IPMSM’s performance, especially for wide speed range open winding applications. The second is to develop a new control method for the dual inverter open winding IPMSM in order to extend the operating region, improve the power capability and efficiency.
Language
English
DOI
doi:10.7939/R34747276
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
M. S. Toulabi, J. Salmon, A. Knight, “Design and Performance Assessment for the V-Shaped Magnet IPM Synchronous Motor” IEEE International Electric Machines and Drives Conference (IEMDC), Pp: 214-219, 2015M. S. Toulabi, J. Salmon, A. M. Knight “Analysis of a Wide Speed Range Open Winding IPM with Floating Bridge” IEEE International Symposium on Industrial Electronics (ISIE), Pp: 1440-1445, 2015M. S. Toulabi, J. Salmon, A. M. Knight “Concentrated Winding IPM Synchronous Motor Design for Wide Field Weakening Applications” IEEE Energy Conversion Congress and Exposition (ECCE), Pp: 3865-3871, 2015

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