Experimental Validation of Three-Level Advanced-Active-Neutral-Point-Clamped Converter for Grid Operation

Konferenz: PCIM Europe 2018 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05.06.2018 - 07.06.2018 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2018

Seiten: 8Sprache: EnglischTyp: PDF

Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt

Gierschner, Sidney; Kayser, Felix; Hammes, David; Hein, Yves; Eckel, Hans-Guenter (University of Rostock, Germany)
Krug, Diemtar (Siemens AG, Germany)

The three-level Advanced-Active-Neutral-Point-Clamped converter (AANPC converter) represents a multilevel converter with a fault-tolerant behaviour. Furthermore, it has a high degree of modularity as the configuration is based on the use of low-inductive standard components. This aspect can be advantageous for the next generation power semiconductor modules. This paper focusses on the implementation of the Software structure for generating the switching signals in an FPGA and implementing a control routine in a muC. The control of the converter mainly comprises DC-link voltage control with subordinate current control loops. The synchronisation with the grid is performed using a phaselocked loop (PLL). During implementation, both a bidirectional power flow and the redundant operation as a twolevel converter are considered. Furthermore, experimental validation of a demonstrator of AANPC converter for grid operation at safety extra-low voltage is presented.