A moving average smoother to improve the accuracy of impedance based protection

David Celeita, Marc Petit, Trung Dung Le, Amine Hmaidouch

Research output: Chapter in Book/InformConference contribution

1 Scopus citations

Abstract

Traditional protective relays work based on a frequency domain since many decades ago. Over the last decades, the fundamentals of a Discrete Fourier Transform (DFT) have shown fair performance when computing the signals before entering a protection algorithm. However, modern power systems integrate complex elements that may affect the response of a trip under particular faults. This research addresses the problem of the phasor computing of a traditional relay. The problem is identified specifically with the selectivity and the accuracy of zone detection for an impedance based protection. A novel moving average module is proposed and assessed with playback simulation and further development of a prototype in a Digital Signal Processor (DSP) for the industrial development of relays. The contribution is focused on the better accuracy of zone detection, including higher selectivity with a low impact on the protection speed.

Original languageEnglish (US)
Title of host publication2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference, I and CPS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728186320
DOIs
StatePublished - Apr 27 2021
Externally publishedYes
Event57th IEEE/IAS Industrial and Commercial Power Systems Technical Conference, I and CPS 2021 - Las Vegas, United States
Duration: Apr 27 2021Apr 30 2021

Publication series

NameConference Record - Industrial and Commercial Power Systems Technical Conference
Volume2021-April

Conference

Conference57th IEEE/IAS Industrial and Commercial Power Systems Technical Conference, I and CPS 2021
Country/TerritoryUnited States
CityLas Vegas
Period4/27/214/30/21

All Science Journal Classification (ASJC) codes

  • General Engineering

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