Exciterless solutions for medium-power wound-field synchronous generators
Exciterless solutions offer many benefits to the wound-field synchronous machine designer, most prominent of which is the significant potential increase in power density. Yet, whilst many topologies have been proposed, they exist only for low power machines and little previous work has been done for...
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| Format: | Thesis (University of Nottingham only) |
| Language: | English |
| Published: |
2022
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| Online Access: | https://eprints.nottingham.ac.uk/69454/ |
| _version_ | 1848800565760360448 |
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| author | Fallows, Daniel James Alfred |
| author_facet | Fallows, Daniel James Alfred |
| author_sort | Fallows, Daniel James Alfred |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Exciterless solutions offer many benefits to the wound-field synchronous machine designer, most prominent of which is the significant potential increase in power density. Yet, whilst many topologies have been proposed, they exist only for low power machines and little previous work has been done for higher power units. Instead, the AC exciter remains the system of choice despite its disadvantages.
This work investigates the scalability of existing exciterless topologies to larger machines, within the confines of minimising manufacturing changes. Through this, two new excitation topologies are developed, one of which provides an exciterless solution without any change to the main generator magnetic design. A functional prototype has been developed and validated, providing a full proof-of-concept for this methodology.
The exciterless topology demonstrated in this work, along with the modelling and optimisation methodology used, provides a template for machine designers to rapidly update existing generator designs; finally unlocking the benefits of exciterless. |
| first_indexed | 2025-11-14T20:53:35Z |
| format | Thesis (University of Nottingham only) |
| id | nottingham-69454 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:53:35Z |
| publishDate | 2022 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-694542023-11-13T11:36:20Z https://eprints.nottingham.ac.uk/69454/ Exciterless solutions for medium-power wound-field synchronous generators Fallows, Daniel James Alfred Exciterless solutions offer many benefits to the wound-field synchronous machine designer, most prominent of which is the significant potential increase in power density. Yet, whilst many topologies have been proposed, they exist only for low power machines and little previous work has been done for higher power units. Instead, the AC exciter remains the system of choice despite its disadvantages. This work investigates the scalability of existing exciterless topologies to larger machines, within the confines of minimising manufacturing changes. Through this, two new excitation topologies are developed, one of which provides an exciterless solution without any change to the main generator magnetic design. A functional prototype has been developed and validated, providing a full proof-of-concept for this methodology. The exciterless topology demonstrated in this work, along with the modelling and optimisation methodology used, provides a template for machine designers to rapidly update existing generator designs; finally unlocking the benefits of exciterless. 2022-10-15 Thesis (University of Nottingham only) NonPeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/69454/1/Exciterless_05.pdf Fallows, Daniel James Alfred (2022) Exciterless solutions for medium-power wound-field synchronous generators. PhD thesis, University of Nottingham. Electrical machines Synchronous Generators Excitation Exciterless |
| spellingShingle | Electrical machines Synchronous Generators Excitation Exciterless Fallows, Daniel James Alfred Exciterless solutions for medium-power wound-field synchronous generators |
| title | Exciterless solutions for medium-power wound-field synchronous generators |
| title_full | Exciterless solutions for medium-power wound-field synchronous generators |
| title_fullStr | Exciterless solutions for medium-power wound-field synchronous generators |
| title_full_unstemmed | Exciterless solutions for medium-power wound-field synchronous generators |
| title_short | Exciterless solutions for medium-power wound-field synchronous generators |
| title_sort | exciterless solutions for medium-power wound-field synchronous generators |
| topic | Electrical machines Synchronous Generators Excitation Exciterless |
| url | https://eprints.nottingham.ac.uk/69454/ |