Non-Equilibrium State Capacitor Voltage Stabilization in a Hybrid Asymmetric Nine-Level Inverter: Non-Linear Model-Predictive Control

Veenstra, M.Rufer, A.2006-07-102006-07-102003https://infoscience.epfl.ch/handle/20.500.14299/232485Hybrid asymmetric multi-level inverters promise significant improvements for medium-voltage industrial drives. Floating sub inverters without feeding allow increased efficiency, but can only supply reactive power. An on-line non-linear model-predictive controller stabilizes their intermediate-circuit capacitor voltages in steady-state and during transients, as demonstrated by simulations and measurements.Multilevel convertersConverter controlModelingDSPReal time processing.Non-Equilibrium State Capacitor Voltage Stabilization in a Hybrid Asymmetric Nine-Level Inverter: Non-Linear Model-Predictive Controltext::conference output::conference paper not in proceedings