A Simple Method for Identifying Mass Unbalance using Vibration Measurement in Permanent Magnet Synchronous Motors

Muhammad Saad Saad Rafaq, Hyeonjun Lee, Yonghyun Park, Sang Bin Lee, Daniel Fernandez, David Diaz-Reigosa, Fernando Briz

Research output: Contribution to journalArticlepeer-review

Abstract

There has been active research in fault diagnosis of permanent magnet synchronous motors (PMSM) with the recent increase in reliability-critical PMSM applications. Most of the research effort is focused on motor current signature analysis (MCSA), as it allows remote, on-line detection of rotor and load defects using the current measurement available in the drive. A critical limitation of MCSA or vibration analysis is their inability to distinguish the type of rotor or load defect. It is crucial for the maintenance engineer to identify the type of defect, since the course of action for continued operation differs depending on the fault. In this work, a simple automated test method for identifying mass unbalance using vibration measurement commonly available in motor drive systems, is proposed. The effectiveness of the proposed method is verified on a PMSM under emulated PM demagnetization, dynamic eccentricity, and mass unbalance conditions.

Original languageEnglish
JournalIEEE Transactions on Industrial Electronics
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Accelerometer
  • Demagnetization
  • Fault Diagnosis
  • Fault diagnosis
  • Mass Unbalance
  • Motor Current Signature Analysis
  • Permanent magnet motors
  • Permanent Magnet Synchronous Motors
  • Rotors
  • Synchronous motors
  • Vibration measurement
  • Vibration Measurement
  • Vibrations

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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