A new shunt connected HVDC tap based on a highly efficient resonant cascade converter

Conference: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2016 - 05/12/2016 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2016

Pages: 8Language: englishTyp: PDF

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Authors:
Birkel, Andre; Bakran, Mark-M. (University Bayreuth, Department of Mechatronics, Center of Energy Technology, Germany)

Abstract:
This paper presents a new concept for HVDC tapping applications based on a resonant cascade DC/DC converter. The scalable DC/DC converter is characterized by soft switching condition for all switches and diodes. Furthermore a continuous current load for all half bridge modules offers a good utilization of the installed semiconductors. The paper starts with a demonstration of the converter’s structure and its fundamental functionality. For the validation of the operation principle a simulation of the DC/DC converter is done. This is followed by a loss calculation and some considerations about the converter design for tapping in HVDC systems. Finally, some thoughts on the passive components are given.