Lubin, Joshua
(2025)
Optimization and Demagnetization Analysis of Permanent
Magnet Machines using Hot Rolled Permanent Magnets.
Master's Thesis, University of Pittsburgh.
(Unpublished)
Abstract
Electric vehicle development and research have greatly expanded in recent years due to zero-emission vehicles being incentivized for emission reductions. A key part of electric vehicles is the electric motors they use. The main motor topology currently used is the permanent magnet machine. Using permanent magnets, consisting of rare earth elements allows for high efficiency and high energy density machines. Rare earth elements, however, are a controversial material to use, due to their difficulty to obtain and highly variable price. As a result, there has been increased research into alternate materials that do not rely on rare earth elements. In this research, one of these developed materials, an emerging permanent magnet material, will be used in optimization. This optimization aims to create motors with these new materials and match the performance of commercial-grade motors that use traditional permanent magnets. Specifically, both surface permanent magnet and interior permanent magnet motors will be created. They will specifically be created with a focus on mitigating demagnetization that can happen during normal operation. Finally, this thesis will examine a brief fault analysis using the optimized motors. The fault analysis will include looking at optimized motors that do not include demagnetization mitigation in their creation. Ansys Optislang and Ansys Motorcad will be utilized heavily to accomplish the two optimizations.
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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
|
| Date: |
7 January 2025 |
| Date Type: |
Publication |
| Defense Date: |
1 November 2024 |
| Approval Date: |
7 January 2025 |
| Submission Date: |
16 October 2024 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Number of Pages: |
81 |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
Swanson School of Engineering > Electrical and Computer Engineering |
| Degree: |
MS - Master of Science |
| Thesis Type: |
Master's Thesis |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
Electric Machines |
| Date Deposited: |
07 Jan 2025 21:09 |
| Last Modified: |
18 Feb 2025 15:26 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/47057 |
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