Identification and non-integer order modelling of synchronous machines operating as generator
This paper presents an original mathematical model of a synchronous generator using derivatives of fractional order. In contrast to classical models composed of a large number of R-L ladders, it comprises half-order impedances, which enable the accurate description of the electromagnetic induction p...
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| Format: | Article |
| Language: | English |
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ENERGA SA
2012-09-01
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| Series: | Acta Energetica |
| Subjects: | |
| Online Access: | http://actaenergetica.org/en/articles/acta-energetica-032012/identification-and-non-integer-order-model-ling-of-synchronous-machines-operating-as-generator/ |
| _version_ | 1818964972596625408 |
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| author | Szymon Racewicz |
| author_facet | Szymon Racewicz |
| author_sort | Szymon Racewicz |
| collection | DOAJ |
| description | This paper presents an original mathematical model of a synchronous generator using derivatives of fractional order. In contrast to classical models composed of a large number of R-L ladders, it comprises half-order impedances, which enable the accurate description of the electromagnetic induction phenomena in a wide frequency range, while minimizing the order and number of model parameters. The proposed model takes into account the skin eff ect in damper cage bars, the eff ects of eddy currents in rotor solid parts, and the saturation of the machine magnetic circuit. The half-order transfer functions used for modelling these phenomena were verifi ed by simulation of ferromagnetic sheet impedance using the fi nite elements method. The analysed machine’s parameters were identified on the basis of SSFR (StandStill Frequency Response) characteristics measured on a gradually magnetised synchronous machine. |
| first_indexed | 2024-12-20T13:09:36Z |
| format | Article |
| id | doaj.art-29ce9b8e64b243d5bb43ca48f0eb0bc2 |
| institution | Directory Open Access Journal |
| issn | 2300-3022 |
| language | English |
| last_indexed | 2024-12-20T13:09:36Z |
| publishDate | 2012-09-01 |
| publisher | ENERGA SA |
| record_format | Article |
| series | Acta Energetica |
| spelling | doaj.art-29ce9b8e64b243d5bb43ca48f0eb0bc22022-12-21T19:39:41ZengENERGA SAActa Energetica2300-30222012-09-011237580Identification and non-integer order modelling of synchronous machines operating as generatorSzymon Racewicz0Gdańsk University of TechnologyThis paper presents an original mathematical model of a synchronous generator using derivatives of fractional order. In contrast to classical models composed of a large number of R-L ladders, it comprises half-order impedances, which enable the accurate description of the electromagnetic induction phenomena in a wide frequency range, while minimizing the order and number of model parameters. The proposed model takes into account the skin eff ect in damper cage bars, the eff ects of eddy currents in rotor solid parts, and the saturation of the machine magnetic circuit. The half-order transfer functions used for modelling these phenomena were verifi ed by simulation of ferromagnetic sheet impedance using the fi nite elements method. The analysed machine’s parameters were identified on the basis of SSFR (StandStill Frequency Response) characteristics measured on a gradually magnetised synchronous machine.http://actaenergetica.org/en/articles/acta-energetica-032012/identification-and-non-integer-order-model-ling-of-synchronous-machines-operating-as-generator/synchronous machinenon-integer order modellingparameter identifi cationSSFR |
| spellingShingle | Szymon Racewicz Identification and non-integer order modelling of synchronous machines operating as generator Acta Energetica synchronous machine non-integer order modelling parameter identifi cation SSFR |
| title | Identification and non-integer order modelling of synchronous machines operating as generator |
| title_full | Identification and non-integer order modelling of synchronous machines operating as generator |
| title_fullStr | Identification and non-integer order modelling of synchronous machines operating as generator |
| title_full_unstemmed | Identification and non-integer order modelling of synchronous machines operating as generator |
| title_short | Identification and non-integer order modelling of synchronous machines operating as generator |
| title_sort | identification and non integer order modelling of synchronous machines operating as generator |
| topic | synchronous machine non-integer order modelling parameter identifi cation SSFR |
| url | http://actaenergetica.org/en/articles/acta-energetica-032012/identification-and-non-integer-order-model-ling-of-synchronous-machines-operating-as-generator/ |
| work_keys_str_mv | AT szymonracewicz identificationandnonintegerordermodellingofsynchronousmachinesoperatingasgenerator |