Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Improved high-speed de-excitation system for brushless synchronous machines tested on a 20 MVA hydro-generator
Year:2015
Research Areas
  • Electric engineering
Information
Abstract
Synchronous machines with brushless excitation have the disadvantage that the field winding is not accessible for the de-excitation of the machine. This means that, despite the proper operation of the protection system, the slow deexcitation time constant may produce severe damage in the event of an internal short circuit. A high-speed de-excitation system for these machines was developed, and this study presents the continuation of a previously published study. This study presents the design by computer simulation and the results of the first commissioning of this de-excitation system in a commercial 20 MVA hydro-generator. The de-excitation is achieved by inserting resistance in the field circuit, obtaining a dynamic response similar to that achieved in machines with static excitation. In this case, a non-linear discharge resistor was used, making the dynamic response even better.
International
Si
JCR
Si
Title
Iet Electric Power Applications
ISBN
1751-8660
Impact factor JCR
1,307
Impact info
Datos JCR del año 2013
Volume
Journal number
From page
1
To page
7
Month
SIN MES
Ranking
Participants
  • Autor: Emilio David Rebollo Lopez (UPM)
  • Autor: Francisco Blánquez Delgado (UPM)
  • Autor: Carlos Antonio Platero Gaona (UPM)
  • Autor: Francisco Blazquez Garcia (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
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