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Feature Enhancement Method for Weak Photovoltaic Series Arc Fault Signals

  • Xi'an University of Technology
  • Xi'an Jiaotong University
  • Shenzhen Power Supply Corporation

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

For intensely burning photovoltaic (PV) series arc faults without strong noise interferences, their time-frequency features are easily to be discovered. However, various PV systems would generate noise interferences to the arc fault signal, causing difficulties to distinguish the arc fault and normal states. To solve this kind of problem, new measurements should be taken to acquire obvious arc fault features even from the weak arc fault electrical signals.In this paper, weak PV series arc fault electrical signals are acquired from the designed experimental setup with different load types firstly. Then it is found that the performance of arc fault features are not that satisfying in higher frequency bands after directly applying the existing Db9 based wavelet transform, causing the arc fault detection problem. Next, arc fault features are enhanced in most frequency bands by conducting the proposed Rbio3.1 based wavelet transform. Finally, the stochastic resonance (SR) method is proposed to further enhance Rbio3.1-based arc fault feature. The compared results prove that the combination between SR method and Rbio3.1 wavelet transform show the effective feature enhancement ability facing weak PV series arc fault electrical signals with different inverters and resistors.

Original languageEnglish
Title of host publicationELECTRICAL CONTACTS 2020 - Proceedings of the 66th IEEE Holm Conference on Electrical Contacts and Intensive Course, HLM 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages42-49
Number of pages8
ISBN (Electronic)9780738123592, 9781665422208
DOIs
StatePublished - 30 Sep 2020
Event66th IEEE Holm Conference on Electrical Contacts and Intensive Course, HLM 2020 - San Antonio, United States
Duration: 30 Sep 2020 → 7 Oct 2020

Publication series

NameElectrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts
Volume2020-September
ISSN (Print)0361-4395

Conference

Conference66th IEEE Holm Conference on Electrical Contacts and Intensive Course, HLM 2020
Country/TerritoryUnited States
CitySan Antonio
Period30/09/20 → 7/10/20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Weak arc fault signal
  • different load types
  • feature enhancement
  • stochastic resonance
  • wavelet transform

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