The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault

Conducted experiment proves that third harmonic (TH) component of salient-pole synchronous generator behaves differently compared with fundamental frequency component in terms of generated voltage. Fundamental frequency-generated voltage depends on the excitation system, and the generated voltages b...

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Main Authors: Shah Riman, N.I., Abdullah, M.F., Romlie, M.F., Baharudin, Z.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19276 /
Published: John Wiley and Sons Ltd 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026521065&doi=10.1002%2fetep.2401&partnerID=40&md5=1d6fbd3efcac3a235d6388dccdc24130
http://eprints.utp.edu.my/19276/
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spelling utp-eprints.192762018-08-01T00:58:32Z The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault Shah Riman, N.I. Abdullah, M.F. Romlie, M.F. Baharudin, Z. Conducted experiment proves that third harmonic (TH) component of salient-pole synchronous generator behaves differently compared with fundamental frequency component in terms of generated voltage. Fundamental frequency-generated voltage depends on the excitation system, and the generated voltages before and during fault are almost the same. However, TH-generated voltage is independent of the excitation system. In other words, variation of the excitation current does not affect the generation of TH voltage as much as it affects the generation of fundamental frequency voltage. On top of that, the generation of TH voltage before and during fault varies significantly. Hence, a typical method to solve fault analysis for 3-phase–to–ground fault is not applicable in TH domain. Therefore, in this article, a method to find TH-generated voltage is proposed. The TH-generated voltage during 3-phase–to–ground fault is presented in terms of percentage called the harmonic fundamental ratio, which is the ratio of TH zero-sequence–generated voltage to fundamental frequency–positive sequence-generated voltage during fault. The harmonic fundamental ratio is obtained by short circuiting the generator terminal prior to the application in the system. It turns out that the generated TH voltage by synchronous generator depends on the zero-sequence TH impedance of the TH fault current path. Lastly, the proposed method to obtain TH-generated voltage by salient-pole synchronous generator is validated by comparing the calculated TH fault current with the actual TH fault current obtained from experiment. Copyright © 2017 John Wiley & Sons, Ltd. John Wiley and Sons Ltd 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026521065&doi=10.1002%2fetep.2401&partnerID=40&md5=1d6fbd3efcac3a235d6388dccdc24130 Shah Riman, N.I. and Abdullah, M.F. and Romlie, M.F. and Baharudin, Z. (2017) The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault. International Transactions on Electrical Energy Systems, 27 (11). http://eprints.utp.edu.my/19276/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Conducted experiment proves that third harmonic (TH) component of salient-pole synchronous generator behaves differently compared with fundamental frequency component in terms of generated voltage. Fundamental frequency-generated voltage depends on the excitation system, and the generated voltages before and during fault are almost the same. However, TH-generated voltage is independent of the excitation system. In other words, variation of the excitation current does not affect the generation of TH voltage as much as it affects the generation of fundamental frequency voltage. On top of that, the generation of TH voltage before and during fault varies significantly. Hence, a typical method to solve fault analysis for 3-phase–to–ground fault is not applicable in TH domain. Therefore, in this article, a method to find TH-generated voltage is proposed. The TH-generated voltage during 3-phase–to–ground fault is presented in terms of percentage called the harmonic fundamental ratio, which is the ratio of TH zero-sequence–generated voltage to fundamental frequency–positive sequence-generated voltage during fault. The harmonic fundamental ratio is obtained by short circuiting the generator terminal prior to the application in the system. It turns out that the generated TH voltage by synchronous generator depends on the zero-sequence TH impedance of the TH fault current path. Lastly, the proposed method to obtain TH-generated voltage by salient-pole synchronous generator is validated by comparing the calculated TH fault current with the actual TH fault current obtained from experiment. Copyright © 2017 John Wiley & Sons, Ltd.
format Article
author Shah Riman, N.I.
Abdullah, M.F.
Romlie, M.F.
Baharudin, Z.
spellingShingle Shah Riman, N.I.
Abdullah, M.F.
Romlie, M.F.
Baharudin, Z.
The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault
author_sort Shah Riman, N.I.
title The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault
title_short The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault
title_full The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault
title_fullStr The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault
title_full_unstemmed The third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault
title_sort third harmonic generated voltage by salient-pole synchronous generator during 3-phase–to–ground fault
publisher John Wiley and Sons Ltd
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026521065&doi=10.1002%2fetep.2401&partnerID=40&md5=1d6fbd3efcac3a235d6388dccdc24130
http://eprints.utp.edu.my/19276/
_version_ 1741196181599420416
score 11.62408

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