Improved high-speed de-excitation system for brushless synchronous machines tested on a 20 MVA hydro-generator

Rebollo López, Emilio; Blanquez, Francisco R.; Platero Gaona, Carlos Antonio; Blázquez García, Francisco y Redondo, Marta (2015). Improved high-speed de-excitation system for brushless synchronous machines tested on a 20 MVA hydro-generator. "IET Electric Power Applications", v. 9 (n. 6); pp. 405-411. ISSN 1751-8660. https://doi.org/10.1049/iet-epa.2014.0313.

Descripción

Título: Improved high-speed de-excitation system for brushless synchronous machines tested on a 20 MVA hydro-generator
Autor/es:
  • Rebollo López, Emilio
  • Blanquez, Francisco R.
  • Platero Gaona, Carlos Antonio
  • Blázquez García, Francisco
  • Redondo, Marta
Tipo de Documento: Artículo
Título de Revista/Publicación: IET Electric Power Applications
Fecha: 16 Abril 2015
Volumen: 9
Materias:
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Eléctrica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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 de-excitation 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.

Más información

ID de Registro: 40758
Identificador DC: http://oa.upm.es/40758/
Identificador OAI: oai:oa.upm.es:40758
Identificador DOI: 10.1049/iet-epa.2014.0313
URL Oficial: http://digital-library.theiet.org/content/journals/10.1049/iet-epa.2014.0313
Depositado por: Memoria Investigacion
Depositado el: 09 Jun 2016 09:56
Ultima Modificación: 09 Jun 2016 09:56
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