Strategy for Reducing Oscillations in Power Electronic Circuits Using Gate Control

Conference: PCIM Europe 2018 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
06/05/2018 - 06/07/2018 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2018

Pages: 7Language: englishTyp: PDF

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Middelstaedt, Lars; Lindemann, Andreas (Otto von Guericke University, Germany)

This paper addresses the issue of reducing switching oscillations in a basic power electronic commutation cell. Based on previous publications, an analytical model of the turn-off process is presented leading to an optimization strategy. According to this, an optimum can be found allowing a fast switching transition and thus small switching losses as well as reducing the oscillation amplitude to a minimum and hence, improving electromagnetic compatibility characteristics. The theory is validated by measurement followed by a discussion of its practicability for power electronic applications.