In this article, a novel structure for four-switch three-phase inverter with the ability of creating null vector is proposed. This utilizes symmetrical quasi-Z-source network and generates zero output voltage during shoot-through state, which similar to in conventional six-switch inverter. used remaining time each switching period. means that proposed has several advantages over inverter, two a...

In this paper, a composite control method combining repetitive (RC) and deadbeat predictive (DPC) is proposed to reduce the harmonic content of output voltage improve quality waveform, in order solve problem distortion caused by linear nonlinear loads at common grid-connected point microgrid. First, mathematical model three-phase Z-source inverters established, transformed into state space expr...

<p>The Multilevel inverter (MLI) is identified as a viable power electronic unit for distributed energy conversion applications. In this paper discusses the performance of single phase seven level Z (impedance) source cascaded H-bridge topology suited solar photovoltaic systems. A modified sinusoidal pulse width modulation technique used to control switches inverter. The simulation result...

In this paper, an embedded half-bridge Z-source inverter based on gamma structure is proposed. contrast with the classical inverter, proposed can generate zero voltage levels in output. High gain and low stress capacitors are main advantages of converter. The value boost factor increased by changing both shoot-through (ST) duty cycle turns ratio transformer. operating principle converter four m...