Köster, Robin ; Binder, Andreas (2024)
Numerical Modeling of HTS Excited Medium-Speed Wind Generators with Diode Rectifier Stator Feedin.
In: International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2024 (37, Issue 5)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Medium-speed wind generators in the MW-range with high-temperature superconducting excitation winding are analyzed by means of non-linear 2D and 3D FEM models. Besides an inverter-based sinusoidal stator current feeding, a grid connection via a diode rectifier is analyzed by using coupled FEM and circuit simulations. The newly proposed modeling techniques are used to determine the excitation requirement for speed-variable, unity power factor operation at constant stator voltage, as required for a diode rectifier feeding of the stator winding. 2D FEM models in the H-A-formulation are developed and used for the calculation of the hysteresis loss in the superconducting field winding at stationary operation as well as for an investigation of field current variations in the HTS field winding. The major modeling challenges consist in very long settling times of voltage-fed models, several strong model non-linearities and high requirements on the spatial discretization. Approaches for overcoming these difficulties with reasonable computational efficiency are proposed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Köster, Robin ; Binder, Andreas |
| Art des Eintrags: | Bibliographie |
| Titel: | Numerical Modeling of HTS Excited Medium-Speed Wind Generators with Diode Rectifier Stator Feedin |
| Sprache: | Englisch |
| Publikationsjahr: | 2024 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | International Journal of Numerical Modelling: Electronic Networks, Devices and Fields |
| Jahrgang/Volume einer Zeitschrift: | 2024 |
| (Heft-)Nummer: | 37, Issue 5 |
| URL / URN: | https://doi.org/10.1002/jnm.3284 |
| Kurzbeschreibung (Abstract): | Medium-speed wind generators in the MW-range with high-temperature superconducting excitation winding are analyzed by means of non-linear 2D and 3D FEM models. Besides an inverter-based sinusoidal stator current feeding, a grid connection via a diode rectifier is analyzed by using coupled FEM and circuit simulations. The newly proposed modeling techniques are used to determine the excitation requirement for speed-variable, unity power factor operation at constant stator voltage, as required for a diode rectifier feeding of the stator winding. 2D FEM models in the H-A-formulation are developed and used for the calculation of the hysteresis loss in the superconducting field winding at stationary operation as well as for an investigation of field current variations in the HTS field winding. The major modeling challenges consist in very long settling times of voltage-fed models, several strong model non-linearities and high requirements on the spatial discretization. Approaches for overcoming these difficulties with reasonable computational efficiency are proposed. |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Fachgebiet Elektrische Antriebssysteme 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektrische Energiewandlung > Elektrische Energiewandlung 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektrische Energiewandlung |
| Hinterlegungsdatum: | 10 Sep 2024 13:49 |
| Letzte Änderung: | 21 Okt 2024 12:42 |
| PPN: | 522363458 |
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