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Electrical Engineering
Erschienen in: Electrical Engineering 4/2018

17.07.2018 | Original Paper

A setting-free flux-based synchronous generator loss of excitation protection

verfasst von: Milad Niaz Azari

Erschienen in: Electrical Engineering | Ausgabe 4/2018

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Abstract

Protection against loss of excitation (LOE) in synchronous generators is requisite because of its harmful effects on both the generator and power system. This paper proposes a setting-free method to detect loss of excitation in synchronous generators. To this end, a flux-based method which is based on derivative of the flux is proposed in order to detect the fault. Because of negative amount of the flux derivative or rate of the flux variation at the LOE moment, it can be a good index to specify the fault. The proposed method does not require any threshold to act in different situation, for example, in different loads or existence of the FACTs devices. It should be stated that proposed relay will operate without any delay in all the mentioned situations. In order to validate the operation of the proposed method, some simulations have been done in MATLAB/Simulink software.
Vorheriger Artikel Field–circuit model of the radial active magnetic bearing system
Nächster Artikel Investigation of a delay compensated deadbeat current controller for inverters by Z-transform

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Metadaten
Titel
A setting-free flux-based synchronous generator loss of excitation protection
verfasst von
Milad Niaz Azari
Publikationsdatum
17.07.2018
Verlag
Springer Berlin Heidelberg
Erschienen in
Electrical Engineering / Ausgabe 4/2018
Print ISSN: 0948-7921
Elektronische ISSN: 1432-0487
DOI
https://doi.org/10.1007/s00202-018-0712-x

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