Multi-level Voltage Inverter with Structure Invariant to the Number of Levels of the Output Curve

Abstract

The paper describes a three-phase multi-level frequency converter based on two-channel impulse converters, the structure of the power circuit of which does not depend on the number of levels of the output curve. The principle of forming of a multi-level curve is considered, it allows obtaining optimal efficiency of the stabilization process of the output voltage when the magnitudes of the load voltage and the supply grid voltage change. Results of computer simulation are presented; they confirm the declared advantages of the converter.