A fast method for modelling skew and its effects in salient-pole synchronous generators
The general effects of implementing skewing techniques in electrical machines are well known and have been extensively studied over the years. An important aspect of such techniques is related to the identification of optimal methods for analyzing and modelling any skewed components. This paper pres...
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| Format: | Article |
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Institute of Electrical and Electronics Engineers
2017
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| Online Access: | https://eprints.nottingham.ac.uk/44156/ |
| _version_ | 1848796850137595904 |
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| author | Nuzzo, Stefano Galea, Michael Gerada, C. Brown, Neil |
| author_facet | Nuzzo, Stefano Galea, Michael Gerada, C. Brown, Neil |
| author_sort | Nuzzo, Stefano |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The general effects of implementing skewing techniques in electrical machines are well known and have been extensively studied over the years. An important aspect of such techniques is related to the identification of optimal methods for analyzing and modelling any skewed components. This paper presents a fast, finite-element-based method, able to accurately analyze the effects of skew on wound-field, salient-pole synchronous generators in a relatively shorter time than the more traditional methods. As vessel for studying the proposed technique, a 400kVA alternator is considered. Analytical and theoretical considerations on the benefits of skewing the stator in the generator under analysis are preliminary carried out. A finite-element model of the machine is built and the proposed method is then implemented to investigate the effects of the skewed stator. Comparisons against more traditional techniques are presented, with focus on the analysis of the voltage total harmonic distortion and the damper bars’ currents. Finally, experimental tests are performed at no-load and on-load operations for validation purposes, with excellent results being achieved. |
| first_indexed | 2025-11-14T19:54:32Z |
| format | Article |
| id | nottingham-44156 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:54:32Z |
| publishDate | 2017 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-441562020-05-04T18:41:48Z https://eprints.nottingham.ac.uk/44156/ A fast method for modelling skew and its effects in salient-pole synchronous generators Nuzzo, Stefano Galea, Michael Gerada, C. Brown, Neil The general effects of implementing skewing techniques in electrical machines are well known and have been extensively studied over the years. An important aspect of such techniques is related to the identification of optimal methods for analyzing and modelling any skewed components. This paper presents a fast, finite-element-based method, able to accurately analyze the effects of skew on wound-field, salient-pole synchronous generators in a relatively shorter time than the more traditional methods. As vessel for studying the proposed technique, a 400kVA alternator is considered. Analytical and theoretical considerations on the benefits of skewing the stator in the generator under analysis are preliminary carried out. A finite-element model of the machine is built and the proposed method is then implemented to investigate the effects of the skewed stator. Comparisons against more traditional techniques are presented, with focus on the analysis of the voltage total harmonic distortion and the damper bars’ currents. Finally, experimental tests are performed at no-load and on-load operations for validation purposes, with excellent results being achieved. Institute of Electrical and Electronics Engineers 2017-04-14 Article PeerReviewed Nuzzo, Stefano, Galea, Michael, Gerada, C. and Brown, Neil (2017) A fast method for modelling skew and its effects in salient-pole synchronous generators. IEEE Transactions on Industrial Electronics, 64 (10). pp. 7679-7688. ISSN 1557-9948 Skewing Synchronous Generators Permeance Function Single-Slice Multi-Slice http://ieeexplore.ieee.org/document/7900415/ doi:10.1109/TIE.2017.2694378 doi:10.1109/TIE.2017.2694378 |
| spellingShingle | Skewing Synchronous Generators Permeance Function Single-Slice Multi-Slice Nuzzo, Stefano Galea, Michael Gerada, C. Brown, Neil A fast method for modelling skew and its effects in salient-pole synchronous generators |
| title | A fast method for modelling skew and its effects in salient-pole synchronous generators |
| title_full | A fast method for modelling skew and its effects in salient-pole synchronous generators |
| title_fullStr | A fast method for modelling skew and its effects in salient-pole synchronous generators |
| title_full_unstemmed | A fast method for modelling skew and its effects in salient-pole synchronous generators |
| title_short | A fast method for modelling skew and its effects in salient-pole synchronous generators |
| title_sort | fast method for modelling skew and its effects in salient-pole synchronous generators |
| topic | Skewing Synchronous Generators Permeance Function Single-Slice Multi-Slice |
| url | https://eprints.nottingham.ac.uk/44156/ https://eprints.nottingham.ac.uk/44156/ https://eprints.nottingham.ac.uk/44156/ |