Finite control set-model predictive control for power converters multilevel symmetric cascaded H-bridge inverters-fed drive

Abstract

Multilevel power converter control is more efficient and flexible nowadays thanks to microprocessors. They allow to have a dynamic system with the Model Predictive Control algorithm. Many medium-voltage voltage source inverters use three-level Neutral-Point Clamped technology. There are two types of Model Predictive Control: Continuous Control Sets and Finite Control Sets. This paper uses the finite control model prediction control algorithm to control stacked Neutral-Point Clamped forming a thirteen-level Cascaded H-Bridge multicellular converter symmetric. The highly dynamic performance of multicell converters controlled by the Model Predictive Control are used to predict the current that feeds a three-phase line by inverter who are using of low-voltage components such as 1400-V IGBTs that are mass produced with a cost advantage over high-voltage (>1700 V) IGBTs. The 3rd harmonic injection method is introduced to boost the output voltage of each H-Bridge.