Advanced Control Scheme to Improve the Efficiency of 3-Level Active Front End Inverters for Servo Drives

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: 9Language: englishTyp: PDF

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Hoeltgen, Markus; Krah, Jens Onno (Cologne University of Applied Sciences, Faculty of Information, Media and Electrical Engineering, Betzdorfer Str. 2, 50679 Koeln, Germany)

Using the well-known burst mode from single phase rectifiers with active power factor correction (PFC) can improve the energy efficiency of 3-phase active front end converters and simplify the converter circuit design. Especially if the mains chokes are not integrated into the inverters, replacing the 3-phase line voltage measurement by reliable line voltage estimation is an advantage.