Advanced Active Neutral Point Three Level Inverter with Standard Half-Bridge Modules
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: 7Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Fuhrmann, Jan; Eckel, Hans-Guenter (University of Rostock, Germany)
Three level NPC-inverters suffer from complex commutation circuits . If a 3L-NPC phase is built out of half-bridge modules, the high inductive load terminal of the modules becomes part of the commutation circuit. In this paper, a new control scheme for an active neutral point clamped (ANPC) three-level-inverter is proposed. It allows the realization of one three level phase out of three half-bridge modules, by avoiding high inductive commutations with DC voltage. The remaining commutation paths are either low inductive with DC link voltage or high inductive but without a voltage source. The inverter control with space vector modulation was successfully evaluated on a low voltage, low power test system.