Open Circuit Fault Diagnosis of Rotating Rectifier based on the Polarity and Symmetry of Armature Current

Zhihuang Wei, Weiguo Liu, Ji Pang, Ningfei Jiao, Chenghao Sun

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Based on the differences among polarity and symmetry of asynchronous exciter's armature current in various cases (healthy and faulty conditions), a novel, low-cost and online rotating rectifier fault detection method is proposed and tested. To describe these differences, the conception of ratio, residual and sum are used and corresponding functions are established. Considering the existence of interference and error of measurement, some thresholds are set to compare with values of residual, ratio and sum functions to identify these differences. Under the healthy condition, the residual is close to zero, but it will be bigger than the pre-set value when the rotating rectifier is open circuit, so it's used to identify whether the fault occurs. Through the ratio, residual and sum functions, the fault can be confirmed and fault diagnosis table is given. The simulation results verify that the proposed method is feasible and effective both in steady and transient states.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1770-1775
Number of pages6
ISBN (Electronic)9781479973118
DOIs
StatePublished - 3 Dec 2018
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sep 201827 Sep 2018

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/TerritoryUnited States
CityPortland
Period23/09/1827/09/18

Keywords

  • Fault detection
  • Ratio
  • Residual and sum function
  • Rotating rectifier
  • Symmetry of current

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