Increasing the reliability of wind turbines using condition monitoring of semiconductor devices: a review

Rana Moeini*, Pietro Tricoli, Hassan Hemida, Charalampos Baniotopoulos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)
414 Downloads (Pure)


The majority of electrical failures in wind turbines occur in the generator-side semiconductor devices. This is due to temperature swings affecting the layers of insulated-gate bipolar transistors in different ways; these effects are aggravated by the variation of wind speed. The implementation of accurate on-line condition monitoring mainly relies on on-line tracking of the temperature variation of components. The maximum temperature stress is observed at the junction terminal of the devices, which cannot be easily measured. Additionally, it is difficult to track the exact dynamic of temperature due to the slow response of sensors. Thus, several methods have been presented in the technical literature to estimate the junction temperature of the semiconductor devices. Each method has merits and disadvantages in terms of accuracy and complexity, as failure mechanisms have their own effects on the variation of junction temperature and some or all of the electrical parameters. Therefore, detection algorithms have to determine the root cause of the temperature variation. This study comparatively reviews the condition monitoring methods presented so far and gives directions on the future steps that should be addressed by research in this area.

Original languageEnglish
Pages (from-to)182-189
Number of pages8
JournalIET Renewable Power Generation
Issue number2
Early online date8 Dec 2017
Publication statusPublished - Feb 2018


  • wind turbines
  • power system reliability
  • condition monitoring
  • power semiconductor devices
  • reliability
  • semiconductor devices
  • electrical failures
  • grid
  • generator converters
  • insulated-gate bipolar transistors
  • on-line condition monitoring
  • temperature variation on-line tracking
  • maximum temperature stress
  • sensors
  • electrical parameters

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment


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