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 and Platero Gaona, Carlos Antonio and Rebollo López, Emilio and 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. In: "17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)", 08 Sep - 10 Sep 2015, Geneva, Switzerland. pp. 1-9.

Description

Title: Improvement of the Ground-Fault Detection in Field Windings of Synchronous Machines with Static Excitation based on Third-Harmonic Voltage Phase-Angle Comparison
Author/s:
  • Blánquez Delgado, Francisco
  • Platero Gaona, Carlos Antonio
  • Rebollo López, Emilio
  • Blázquez García, Francisco
Item Type: Presentation at Congress or Conference (Article)
Event Title: 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
Event Dates: 08 Sep - 10 Sep 2015
Event Location: Geneva, Switzerland
Title of Book: 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
Date: 2015
Subjects:
Freetext Keywords: Faults, Diagnostics, Synchronous Motors, Excitation System, Fault handling strategy
Faculty: E.T.S.I. Industriales (UPM)
Department: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

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.

More information

Item ID: 42567
DC Identifier: http://oa.upm.es/42567/
OAI Identifier: oai:oa.upm.es:42567
Deposited by: Memoria Investigacion
Deposited on: 01 Aug 2016 07:56
Last Modified: 01 Aug 2016 11:44
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM