Frequency Controlled Series-Resonant Converter for Optimum ZVS and Near ZCS Operation

Conference: PCIM Europe digital days 2020 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
07/07/2020 - 07/08/2020 at Deutschland

Proceedings: PCIM Europe digital days 2020

Pages: 8Language: englishTyp: PDF

Authors:
Rieger, Tim; Niessen, Martin; Deck, Patrick; Dick, Christian P. (TH Köln, University of Applied Sciences, Germany)

Abstract:
Frequency tracking of a fast switching series resonant converter (SRC) is presented in order to reduce switching losses. The experimental setup aims to achieve zero voltage switching (ZVS) on the converters high voltage side (HVS) within a wide range of operation points. Therefore, measurement circuits were set up to detect if soft switching through ZVS is affected, and to control the converters switching frequency. The control is able to respond to different scenarios, such as a long term change of the resonant frequency dominated by the resonant circuits passive components or short term occurring load steps.