Assessment of Output Voltage Quality of Three-Phase Multilevel Inverter with Nearest Vector Selecting Space Vector Control

摘要

The paper presents the nearest vector selecting space vector control (SVC) of any arbitrary MLVSI circuit with any arbitrary number of the equal feeding DC voltage levels. The linear mode LabView model for the SVC digital controller is designed in two variants of the reference signals sampling. The MLVSI output voltage THD and integrated voltage harmonics factors (IHF), needed for computing of the load circuit voltages and currents and their quality indices, are estimated as functions of the sampling frequency index).