Modeling and Experimental Verification of a 100% Stator Ground Fault Protection Based on Adaptive Third-Harmonic Differential Voltage Scheme for Synchronous Generators

Khaled Al Jaafari, Amir Negahdari, Hamid A. Toliyat, Nader Safari-Shad, Russ Franklin

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

In this paper, a novel adaptive stator-ground fault protection scheme based on third-harmonic differential voltages is implemented on a lab scale synchronous generator. The lab scale generator is used to emulate the fault characteristics of industrial generators along the stator windings. Simulations based on finite element analysis methods were used to design and tune the laboratory testbed. Experimental results prove the expected fault characteristics as well as fault detection capability of the adaptive stator-ground fault protection scheme.

Original languageBritish English
Article number7878531
Pages (from-to)3379-3386
Number of pages8
JournalIEEE Transactions on Industry Applications
Volume53
Issue number4
DOIs
StatePublished - 1 Jul 2017

Keywords

  • Adaptive scheme
  • fault characteristics
  • Kalman adaptive filtering (KAF)
  • synchronous generator
  • third harmonic

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