In this paper the problem of the modulation strategy of a cascaded multilevel inverter is solved using the Duty-Cycle Space Vector (DCSV) approach, which is based on the space vector representation of the switch state. This approach simplifies the study of the modulation strategies and leads to a general solution of the problem, providing an intuitive graphical representation of the modulation properties. Starting from the general solution, a great number of particular modulation strategies, having different characteristics, can be immediately derived. An example of application to a 5-level inverter is presented. The effectiveness of the proposed approach is tested by numerical simulations.
C. Rossi, G. Serra, A. Tani, L. Zarri (2005). Cascaded multilevel inverter modulation strategies: a novel solution based on duty-cycle space vector approach". s.l : IEEE Industrial Electronic Society.
Cascaded multilevel inverter modulation strategies: a novel solution based on duty-cycle space vector approach"
ROSSI, CLAUDIO;SERRA, GIOVANNI;TANI, ANGELO;ZARRI, LUCA
2005
Abstract
In this paper the problem of the modulation strategy of a cascaded multilevel inverter is solved using the Duty-Cycle Space Vector (DCSV) approach, which is based on the space vector representation of the switch state. This approach simplifies the study of the modulation strategies and leads to a general solution of the problem, providing an intuitive graphical representation of the modulation properties. Starting from the general solution, a great number of particular modulation strategies, having different characteristics, can be immediately derived. An example of application to a 5-level inverter is presented. The effectiveness of the proposed approach is tested by numerical simulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
