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A High Current, High Frequency Modular Multiphase Multilevel Converter for Power Hardware-in-the-Loop Emulation

Schmitt, Alexander; Gommeringer, Mario; Kolb, Johannes; Braun, Michael

Abstract:
This paper presents a simple Modular Multiphase Multilevel Converter (MMPMC) especially for the usage in Power Hardware-in-the-Loop Emulation systems. Standard half-bridges connected to flux compensated chokes are used to build up an inductive voltage divider to form the multilevel voltage waveform. A modulator with a sorting algorithm is employed to calculate the switching signals of the particular branches. The selection of the switching states is depending on the instantaneous branch currents to ensure a symmetrical distribution of the load current to the branches. A modular and scalable converter system has been engineered, which allows the generation of a six level voltage waveform with a PWM-frequency up to 100 kHz. The prototype is controlled by a specifically designed high-performance signal processing system and offers an output current of more than 100 A. Measurements were performed to evaluate the proper functionality of the converter.

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Volltext §
DOI: 10.5445/IR/1000044931
Coverbild
Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Publikationstyp Proceedingsbeitrag
Jahr 2014
Sprache Englisch
Identifikator ISBN: 978-3-8007-3603-4
urn:nbn:de:swb:90-449312
KITopen-ID: 1000044931
Erschienen in PCIM Europe 2014 : International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management Nuremberg, 20 - 22 May 2014, Proceedings
Verlag VDE-Verl., Berlin
Seiten 1537-1544
Bemerkung zur Veröffentlichung Erstveröffentlichung des Papers auf der PCIM Europe 2014 Conference, 20. - 22. Mai 2014, Nürnberg (www.pcim-europe.com)
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