Operating limits for drive condition monitoring using supply current signature analysis

Jing Li, Mark Sumner, Jesus Arellano-Padilla, Greg Asher

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

1 Citation (Scopus)

Abstract

A scheme has been proposed whereby the presence of mechanical faults in a variable speed motor drive is detected by monitoring the frequency content of the rectifier input current. This paper provides a detailed theoretical analysis of the proposed diagnostic method to determine the major influences on its resolution and accuracy. These include the influence of the resolution of the data acquisition systems for the controller i.e the analogue to digital controller used for current measurement, and the encoder used for speed measurement are investigated and also the bandwidths of the speed and current controllers, the rectifier and inverter circuit parameters and the motor load. Simulation results are used to demonstrate the limitations imposed by these drive characteristics and it is seen that the resolution of the speed encoder has the major influence on the diagnostic method.

Original languageEnglish
Title of host publication2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Pages412-417
Number of pages6
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 - Niagara Falls, ON, Canada
Duration: 15 May 201118 May 2011

Publication series

Name2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011

Conference

Conference2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Country/TerritoryCanada
CityNiagara Falls, ON
Period15/05/1118/05/11

Keywords

  • condition monitoring
  • detection limitation
  • fault signal propagation
  • motor drives

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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