Improvement of the Ground-Fault Detection in Field Windings of Synchronous Machines with Static Excitation based on Third-Harmonic Voltage Phase-Angle Comparison

Blánquez Delgado, Francisco; Platero Gaona, Carlos Antonio; Rebollo López, Emilio y Blázquez García, Francisco (2015). Improvement of the Ground-Fault Detection in Field Windings of Synchronous Machines with Static Excitation based on Third-Harmonic Voltage Phase-Angle Comparison. En: "17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)", 08 Sep - 10 Sep 2015, Geneva, Switzerland. pp. 1-9.

Descripción

Título: Improvement of the Ground-Fault Detection in Field Windings of Synchronous Machines with Static Excitation based on Third-Harmonic Voltage Phase-Angle Comparison
Autor/es:
  • Blánquez Delgado, Francisco
  • Platero Gaona, Carlos Antonio
  • Rebollo López, Emilio
  • Blázquez García, Francisco
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
Fechas del Evento: 08 Sep - 10 Sep 2015
Lugar del Evento: Geneva, Switzerland
Título del Libro: 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
Fecha: 2015
Materias:
Palabras Clave Informales: Faults, Diagnostics, Synchronous Motors, Excitation System, Fault handling strategy
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

This paper presents the theoretical approach and experimental tests of a new algorithm for detecting ground faults in rotor windings of synchronous generators with static excitation. This location method requires the installation of a grounding resistance in the secondary winding of the excitation transformer. First, the third-harmonic reference voltage is obtained by the voltage measurements in the excitation system. Then, the third-harmonic voltage at the grounding resistor is compared to the reference voltage. The ground fault is detected when the phase angle between those voltages is under the trip setting value. This new algorithm has been tested in a 5 kVA Synchronous gener ator with satisfactory results.

Más información

ID de Registro: 42567
Identificador DC: http://oa.upm.es/42567/
Identificador OAI: oai:oa.upm.es:42567
Depositado por: Memoria Investigacion
Depositado el: 01 Ago 2016 07:56
Ultima Modificación: 01 Ago 2016 11:44
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