The damper windings of salient-pole, wound-field synchronous generators are currently attracting a renewed interest due to their impact on the machine efficiency and power quality, which was somewhat overlooked in the past. This paper focuses on the equivalent circuital modeling of damper windings. After recalling its main physical features, the general approach is first presented, permitting to define an equivalent circuit and to derive the related resistance and inductance matrixes whatever is the pattern of the cage bars. Further assumptions deriving from common or advanced features of damper windings are then analyzed, such as symmetrical, antisymmetrical, shifted and modulated position patterns. It is then shown how such assumptions can be exploited to simplify and shrink the equivalent circuital model of damper windings when analyzing realistic operating conditions.

Simplified Analytical Circuital Model of Damper Windings Exploiting Symmetries / Nuzzo, S.; Bolognesi, P.; Galea, M.. - (2018), pp. 400-406. (Intervento presentato al convegno 23rd International Conference on Electrical Machines, ICEM 2018 tenutosi a Ramada Plaza Thraki, grc nel 2018) [10.1109/ICELMACH.2018.8507262].

### Simplified Analytical Circuital Model of Damper Windings Exploiting Symmetries

#### Abstract

The damper windings of salient-pole, wound-field synchronous generators are currently attracting a renewed interest due to their impact on the machine efficiency and power quality, which was somewhat overlooked in the past. This paper focuses on the equivalent circuital modeling of damper windings. After recalling its main physical features, the general approach is first presented, permitting to define an equivalent circuit and to derive the related resistance and inductance matrixes whatever is the pattern of the cage bars. Further assumptions deriving from common or advanced features of damper windings are then analyzed, such as symmetrical, antisymmetrical, shifted and modulated position patterns. It is then shown how such assumptions can be exploited to simplify and shrink the equivalent circuital model of damper windings when analyzing realistic operating conditions.
##### Scheda breve Scheda completa Scheda completa (DC)
2018
23rd International Conference on Electrical Machines, ICEM 2018
2018
400
406
Nuzzo, S.; Bolognesi, P.; Galea, M.
Simplified Analytical Circuital Model of Damper Windings Exploiting Symmetries / Nuzzo, S.; Bolognesi, P.; Galea, M.. - (2018), pp. 400-406. (Intervento presentato al convegno 23rd International Conference on Electrical Machines, ICEM 2018 tenutosi a Ramada Plaza Thraki, grc nel 2018) [10.1109/ICELMACH.2018.8507262].
File in questo prodotto:
Non ci sono file associati a questo prodotto.
##### Pubblicazioni consigliate

I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: `https://hdl.handle.net/11380/1237583`
• ND
• 0
• 0