Memorias de investigación
Ponencias en congresos:
Enhancement of a High Speed De­Excitation System for Brushless Synchronous Machines by large blocking voltage semiconductors
Año:2015
Áreas de investigación
  • Ingeniería eléctrica, electrónica y automática
Datos
Descripción
One of the main disadvantage of the synchronous machines with brushless excitation is that the field winding is not accessible for the de-excitation. The de-excitation process is very slow as the field current flows through the rotating diodes which operate in freewheel mode. Therefore in case of an internal fault, despite the correct operation of the protection relays, the machine could have severe damages. A high-speed de-excitation system for these machines was developed. The de-excitation is achieved by inserting a resistance in the field circuit by a static switch semiconductor based, obtaining a dynamic response similar to that achieved in machines with static excitation. This paper presents the improvement in the de-excitation system in the second commercial 20 MVA hydro generator in operation. In this case, high blocking voltage semiconductor was used, making the dynamic response even better, than in the first hydro generator.
Internacional
No
Nombre congreso
Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 2015 IEEE 10th International Symposium
Tipo de participación
960
Lugar del congreso
Revisores
Si
ISBN o ISSN
978-1-4799-7743-7
DOI
10.1109/DEMPED.2015.7303668
Fecha inicio congreso
01/09/2015
Fecha fin congreso
04/09/2015
Desde la página
50
Hasta la página
55
Título de las actas
Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 2015 IEEE 10th International Symposium on
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Generación eléctrica con energía eólica
  • Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial