A calculation method of the energy quality performance for three-level voltage source inverter as a part of the power-supply system

摘要

This paper presents a calculation method of the energy quality performance for three-level voltage source inverter. A waveform of the inverter output voltage depending on voltage ripple components of the DC-link capacitors is analyzed. A new control principle of the inverter allows significantly reduce influence the voltage ripple of the DC-link to the inverter output voltage.