2006•Techniques of Automation and ApplicationsRequires access

An Improved Space Vector Pulse Width Modulation Algorithm of Three-Level Inverter

YU Shou-yi

Abstract

The space vector pulse width modulation(SVPWM) provides the advantage of superior harmonic quality,but SVPWM of a three level inverter is more complex than that of a two level inverter.In this paper,an improved SVPWM algorithm is presented to solve the problems of voltage unbalance of the neutral point and high dv/dt of the out voltage.Simulation results are also given.

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Key concepts: Inverter, Pulse-width modulation, Space vector, Harmonic, Voltage, Point (geometry), Modulation (music), Control theory (sociology)