Adaptable AC Input Phase Switching for Optimum Utilization of Various Grid Configurations supplying Power Electronic Converters and EV/HEV On Board Chargers

Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2014

Pages: 8Language: englishTyp: PDF

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Schafmeister, Frank; Ide, Peter; Richter, Joerg (Delta Energy Systems, 59494 Soest, Germany)

Today’s power electronic converters are mostly integrated in various products which are targeting at the worldwide market. This paper focuses on applications in the power range of 3...12kW, which are mainly fed by a 50/60Hz AC grid. It proposes a solution to selectively adapt to 1 phase- (e.g. North American) and 3 phase grids (e.g. European) using a flexible, i.e. switchable, input configuration. An advantageous implementation is presented which employs thyristors and therefore results in very limited additional component effort leading to almost no extra volume when compared to conventional AC front-end converters. The gained functionality allows AC front-end converters to fully utilize a given grid configuration without derating the transferred power. As a result a given product can use the same power electronic converter in various regions of our world, which reduces manufacturing and logistics efforts.