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Improvement of the Ground-Fault Detection in Field Windings of Synchronous Machines with Static Excitation based on Third-Harmonic Voltage Phase-Angle Comparison
Citation
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 |
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| Author/s: |
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| 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 |
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 |
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| 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 |
