Enhancement of a High Speed De-Excitation System for Brushless Synchronous Machines by large blocking voltage semiconductors

Platero Gaona, Carlos Antonio; Blázquez García, Francisco; Rebollo López, Emilio; Blánquez Delgado, Francisco; Martínez, José A. y Redondo, Marta (2015). Enhancement of a High Speed De-Excitation System for Brushless Synchronous Machines by large blocking voltage semiconductors. En: "Diagnostics for Electrical Machines, 2015 IEEE 10th International Symposium on Power Electronics and Drives (SDEMPED)", 1-4 Sept. 2015, Guarda, Portugal. ISBN 978-1-4799-7743-7. pp. 50-55.

Descripción

Título: Enhancement of a High Speed De-Excitation System for Brushless Synchronous Machines by large blocking voltage semiconductors
Autor/es:
  • Platero Gaona, Carlos Antonio
  • Blázquez García, Francisco
  • Rebollo López, Emilio
  • Blánquez Delgado, Francisco
  • Martínez, José A.
  • Redondo, Marta
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Diagnostics for Electrical Machines, 2015 IEEE 10th International Symposium on Power Electronics and Drives (SDEMPED)
Fechas del Evento: 1-4 Sept. 2015
Lugar del Evento: Guarda, Portugal
Título del Libro: Diagnostics for Electrical Machines, 2015 IEEE 10th International Symposium on Power Electronics and Drives (SDEMPED)
Fecha: 2015
ISBN: 978-1-4799-7743-7
Materias:
Palabras Clave Informales: Synchronous generator excitation; AC generator excitation; Brushless rotating machines; Synchronous machines
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 42558
Identificador DC: http://oa.upm.es/42558/
Identificador OAI: oai:oa.upm.es:42558
URL Oficial: http://ieeexplore.ieee.org/document/7303668/?arnumber=7303668&tag=1
Depositado por: Memoria Investigacion
Depositado el: 25 Ago 2016 10:42
Ultima Modificación: 25 Ago 2016 10:42
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