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Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion
Teymoori, V. 2025. Sensorless Control of Dual Three-Phase Permanent Magnet Vernier Machine for Ship Propulsion. Unpublished doctoral dissertation. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/da2adfd7-10f9-488f-8342-7277554c9aea
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2025
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| _version_ | 1867614092257132544 |
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| access_status_str | Open Access |
| author | Teymoori, Vahid |
| author2 | Wang, R. J. |
| author_browse | Teymoori, Vahid Wang, R. J. |
| author_facet | Wang, R. J. Teymoori, Vahid |
| author_sort | Teymoori, Vahid |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Teymoori, V. 2025. Sensorless Control of Dual Three-Phase Permanent Magnet Vernier Machine for Ship Propulsion. Unpublished doctoral dissertation. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/da2adfd7-10f9-488f-8342-7277554c9aea |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/132405 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:46:32.674Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/132405 Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion Teymoori, Vahid Wang, R. J. Kamper, M. J. Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Ship propulsion, Electric Permanent magnets Electric machinery, Synchronous Marine engineering -- Control systems UCTD Teymoori, V. 2025. Sensorless Control of Dual Three-Phase Permanent Magnet Vernier Machine for Ship Propulsion. Unpublished doctoral dissertation. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/da2adfd7-10f9-488f-8342-7277554c9aea Thesis (PhD)--Stellenbosch University, 2025. ENGLISH ABSTRACT: Permanent magnet (PM) synchronous machines are extensively utilized across various industrial sectors due to their significant advantages, including high efficiency, superior power density, and rapid dynamic response. These features have made PMSMs a preferred choice for many applications, particularly as industries increasingly prioritize environmental sustainability. One notable trend is the growing adoption of PMSMs in ship propulsion systems, driven by the global push towards greener technologies and reduced emissions. In parallel, the past few decades have seen a surge of interest in multiphase machines, which offer several inherent benefits. These include reduced torque ripple, enhanced power distribution capabilities, and greater fault tolerance compared to traditional three-phase machines. Recent advances in science and technology have only bolstered the case for multiphase machines, positioning them as a key solution for future applications. Researchers are actively exploring their potential in fields such as electric vehicles (EVs), railway traction, all-electric ships, more-electric aircraft, and wind power generation systems, among others. For optimal control performance in PMSM systems, particularly in vector control and direct torque control applications, precise information about the rotor’s position is crucial. Traditionally, encoders have been employed to gather this data. However, high-precision position sensors can be expensive, and ship propulsion systems often operate in harsh environments characterized by extreme pressure, humidity, and vibration. Under such conditions, conventional mechanical encoders may malfunction or fail entirely. This has led to a growing interest in sensorless control algorithms, which are rapidly evolving and offer a more robust solution for these challenging environments. This research follows a structured approach, beginning with the development of an observer for standard PMSMs, which is then enhanced and adapted for Vernier machines, and finally extended to Dual Three-Phase Vernier Machines with a specific emphasis on ship propulsion applications. The objective is to evaluate and select the most suitable control technique to ensure efficient and reliable operation in marine environments, pushing forward advancements in sensorless control strategies for next-generation propulsion systems. AFRIKAANSE OPSOMMING: Geen opsomming beskikbaar. Doctoral 2025-06-06T07:08:57Z 2025-06-06T07:08:57Z 2025-03 Thesis https://scholar.sun.ac.za/handle/10019.1/132405 en Stellenbosch University xiii, 119 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Ship propulsion, Electric Permanent magnets Electric machinery, Synchronous Marine engineering -- Control systems UCTD Teymoori, Vahid Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion |
| title | Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion |
| title_full | Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion |
| title_fullStr | Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion |
| title_full_unstemmed | Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion |
| title_short | Sensorless control of dual three-phase permanent magnet vernier machine for ship propulsion |
| title_sort | sensorless control of dual three phase permanent magnet vernier machine for ship propulsion |
| topic | Ship propulsion, Electric Permanent magnets Electric machinery, Synchronous Marine engineering -- Control systems UCTD |
| url | https://scholar.sun.ac.za/handle/10019.1/132405 |
| work_keys_str_mv | AT teymoorivahid sensorlesscontrolofdualthreephasepermanentmagnetverniermachineforshippropulsion |