Abstract:
Power system protections are highly sensitive to decaying DC offset that could appear when a fault occurs. The consequences of this effect represent a challenge in the co...Show MoreNotes: This article was mistakenly omitted from the original submission to IEEE Xplore. It is now included as part of the conference record.
Metadata
Abstract:
Power system protections are highly sensitive to decaying DC offset that could appear when a fault occurs. The consequences of this effect represent a challenge in the coordination of protection devices which have been widely studied. The elimination of the DC offset component of current transformers measurements is the objective of this work, including a new autonomous detector based on mathematical morphology. The idea enhances the digital signal processing to prepare the information before the protective device takes a decision. The detection and fast elimination of the decaying DC offset on current signals could improve the speed of protection, coordination, and selectivity. The paper presents the proposed algorithm and assesses the solution using ATP. The model of the CT used for this validation is also presented. Results show the potential of mathematical morphology for signal processing to delete the DC offset component.
Notes: This article was mistakenly omitted from the original submission to IEEE Xplore. It is now included as part of the conference record.
Published in: 2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS)
Date of Conference: 07-10 May 2018
Date Added to IEEE Xplore: 09 August 2018
ISBN Information:
Electronic ISSN: 2158-4907
Contents 