Introducing the Filtered Park's and Filtered Extended Park's Vector Approach to detect broken rotor bars in induction motors independently from the rotor slots number

Konstantinos N. Gyftakis, Antonio J. Marques Cardoso, Jose A. Antonino-Daviu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The Park's Vector Approach (PVA), together with its variations, has been one of the most widespread diagnostic methods for electrical machines and drives. Regarding the broken rotor bars fault diagnosis in induction motors, the common practice is to rely on the width increase of the Park's Vector (PV) ring and then apply some more sophisticated signal processing methods. It is shown in this paper that this method can be unreliable and is strongly dependent on the magnetic poles and rotor slot numbers. To overcome this constraint, the novel Filtered Park's/Extended Park's Vector Approach (FPVA/FEPVA) is introduced. The investigation is carried out with FEM simulations and experimental testing. The results prove to satisfyingly coincide, whereas the proposed advanced FPVA method is desirably reliable.

Original languageEnglish
Pages (from-to)30-50
Number of pages21
JournalMechanical Systems and Signal Processing
Volume93
Early online date16 Feb 2017
DOIs
Publication statusPublished - 1 Sep 2017

Keywords

  • Broken rotor bars
  • Diagnosis
  • FEM
  • Induction motor
  • Park's Vector
  • Rotor slot number

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