Cascaded H-Bridge based Parallel Hybrid Converter – A new Voltage Source for Power-Hardware-in-the-Loop Emulation Systems
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Author:
Lukas Stefanski, Rüdiger Schwendemann, Daniel Bernet, Martin Widenmeyer, Andreas Liske, Marc Hiller
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Source:
2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL)
- Date: 9-12 Nov. 2020, Aalborg, Denmark
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This paper presents a new 50 kVA Parallel Hybrid Converter (PHC) for Power-Hardware-in-the-Loop (PHIL) emulation systems. The converter combines the high output voltage quality of a low power 17-level Cascaded H-Bridge (CHB) converter in star configuration with the high efficiency and high power density of a 2-level converter. The requirements a converter topology must fulfill in order to be used for PHIL emulation systems are derived and it is shown, that the PHC topology characteristics ideally meet these requirements.