An advanced stator winding insulation quality assessment technique for inverter-fed machines

Jinkyu Yang, Jintae Cho, Sang Bin Lee, Ji Yoon Yoo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Increased thermal and electrical stresses on the motor for inverter-fed machines has accelerated insulation degradation resulting in reduced insulation lifetime. This paper focuses on a new approach for monitoring the condition of the stator insulation for failure-prone inverter-fed machines. The main concept of the proposed technique is to apply a DC and/or variable frequency AC test voltage to the stator insulation using the inverter, to perform standard off-line insulation tests whenever the motor is not operating. Two approaches for testing the insulation with minimal modifications to the inverter circuit are proposed and verified experimentally. The results show that the proposed technique provides a simple low cost solution for detecting stator insulation degradation at an early stage for reliable operation of inverter-fed machine systems, since the insulation condition can be monitored frequently. This not only helps prevent forced outages and safety risks due to insulation breakdown, but also helps perform maintenance in an efficient manner since individual motor maintenance can be prioritized and scheduled based on its present condition.

Original languageEnglish
Title of host publicationConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Pages1562-1569
Number of pages8
Volume3
DOIs
Publication statusPublished - 2006 Dec 1
Event2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting - Tampa, FL, United States
Duration: 2006 Oct 82006 Oct 12

Other

Other2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting
CountryUnited States
CityTampa, FL
Period06/10/806/10/12

Fingerprint

Stators
Insulation
Degradation
Outages
Networks (circuits)
Monitoring
Testing
Electric potential
Costs

Keywords

  • AC electric machines
  • Capacitance test
  • Condition monitoring
  • Diagnostics
  • Dissipation factor
  • Insulation resistance
  • Inverters
  • Predictive maintenance
  • Stator insulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Yang, J., Cho, J., Lee, S. B., & Yoo, J. Y. (2006). An advanced stator winding insulation quality assessment technique for inverter-fed machines. In Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) (Vol. 3, pp. 1562-1569). [4025424] https://doi.org/10.1109/IAS.2006.256737

An advanced stator winding insulation quality assessment technique for inverter-fed machines. / Yang, Jinkyu; Cho, Jintae; Lee, Sang Bin; Yoo, Ji Yoon.

Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). Vol. 3 2006. p. 1562-1569 4025424.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yang, J, Cho, J, Lee, SB & Yoo, JY 2006, An advanced stator winding insulation quality assessment technique for inverter-fed machines. in Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). vol. 3, 4025424, pp. 1562-1569, 2006 IEEE Industry Applications Conference - Forty-First IAS Annual Meeting, Tampa, FL, United States, 06/10/8. https://doi.org/10.1109/IAS.2006.256737
Yang J, Cho J, Lee SB, Yoo JY. An advanced stator winding insulation quality assessment technique for inverter-fed machines. In Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). Vol. 3. 2006. p. 1562-1569. 4025424 https://doi.org/10.1109/IAS.2006.256737
Yang, Jinkyu ; Cho, Jintae ; Lee, Sang Bin ; Yoo, Ji Yoon. / An advanced stator winding insulation quality assessment technique for inverter-fed machines. Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). Vol. 3 2006. pp. 1562-1569
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