Dielectric stress distribution in interleaved transformer windings under PWM-type waveforms

Rodrigo Nuricumbo-Guillén, Fermín Pascual Espino-Cortés

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

3 Scopus citations

Abstract

Nowadays, there is a considerable presence of power electronic devices in the power systems and it is expected that their use will continue growing with the implementation of renewable energy sources, HVDC (High voltage direct current) systems, among other applications. In the case of transformers, they can be connected to electronic converters in applications such as subsea gas compression systems, petroleum extraction and mining, and wind farms. Due to the fast commutation of the semiconductor switches, the electronic converters produce highly repetitive front pulses that will have an impact on the transformer's insulation system. In this paper simulations of continuous and interleaved transformer windings excited by a PWM (Pulse width modulation) voltage waveform are performed in order to analyze the stress produced by this type of excitation on transformer windings. The inter-turn and inter-disc voltages are computed to identify how the stress magnitude and distribution are affected by the use of interleaved winding techniques.

Original languageEnglish
Title of host publication2017 IEEE Electrical Insulation Conference, EIC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages372-375
Number of pages4
ISBN (Electronic)9781509039654
DOIs
StatePublished - 8 Aug 2017
Event35th IEEE Electrical Insulation Conference, EIC 2017 - Baltimore, United States
Duration: 11 Jun 201714 Jun 2017

Publication series

Name2017 IEEE Electrical Insulation Conference, EIC 2017

Conference

Conference35th IEEE Electrical Insulation Conference, EIC 2017
Country/TerritoryUnited States
CityBaltimore
Period11/06/1714/06/17

Keywords

  • Pulse width modulation
  • inter-disc voltage
  • inter-turn voltage
  • interleaved winding
  • winding voltage distribution

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