Synthesis of multilevel inverter output voltages with improved harmonic content for flying vehicle power supply systems

Аuthors

Averin S. V.^1*, Anisimova T. V.², Danilina A. N.², Kryuchkov V. V.²

1. ,
2. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: acb@mai.ru

Abstract

The problem of producing multilevel waveforms using general Fourier series is presented. Such technique can be applied to power electronics as a tool for producing stepped waveforms approximating sinusoidal waveform. Such approach to the synthesis oj AC voltages is based on Fourier series of orthogonal functions set. Using presented analytical methods and expressions, one can determine optimal parameters of voltages ensuring minimal harmonic content. Presented mathematical tool is very useful when designing structures and control algorithms for converters with multilevel output waveforms. Simulation results confirming theoretical data

Keywords:

Fourier series, multilevel converter, inverter, stepped voltage, approximation, harmonic content, simulation