Paper presents a comparative study of space vector pulse width modulation (SVPWM) switching sequences for Voltage Source Inverters (VSIs). Various SVPWM switching sequences are studied for two and three level VSIs in linear modulation index region. The computations of dwell times are presented for two and three level VSIs based on space vector geometry in a synchronized and optimized manner. Th...

A Neutral Point Clamped (NPC) type three-level inverter has the advantages of a low switch voltage and high-quality output waveform. However, there are inherent problems, such as neutral point potential asymmetry common mode interferences, which easily affect symmetry three-phase safe operation inverter. Firstly, according to different modulation degrees, fluctuation midpoint can be suppressed ...

This paper presents a novel approach for the connection of renewable energy sources to the utility grid. Due to the increasing power capability of the available generation systems, a three-level three-phase neutral-point-clamped voltage-source inverter is selected as the heart of the interfacing system. Solar Energy is one of the favorable renewable energy resources and the multilevel inverter ...

In general Pulse width modulation (PWM) techniques of a voltage source inverter (VSI) need a sinusoidal reference signal and triangular carrier signal to generate the required modulating signals for the desired output. Modifications in modulating techniques can be considered in two ways, namely modified reference and modified carrier. The existing multilevel carrier based pulse width modulation...

Multilevel inverters have been widely used in various applications, as they provide output voltage with better quality, lower dv/dt, and Total Harmonic Distortion (THD). inverter such Neutral Point Clamped (NPC) uses a large number of semiconductor devices (IGBTs diodes) which negatively affects the cost efficiency. Recently, three-level (3L) F-type has proposed switch stresses, cost, losses co...