In the conventional DC-AC inverter consisting of two DC-DC converters with unipolar output capacitors, the output capacitor voltages of the DC-DC converters must be higher than the DC input voltage. To overcome this weakness, this paper proposes a single-phase DC-AC inverter consisting of two embedded Z-source converters with bipolar output capacitors. The proposed inverter is composed of two e...

This paper presents a method to control both the dc boost and ac output voltages of Z-source inverter using neural network controllers. The capacitor voltage of the Z-source network has been controlled linearly in order to improve the transient response of the dc boost voltage of the Z-source inverter. The peak value of the line to line ac output voltage is used to control and keep the ac outpu...

This paper presents the comparative study of various Multicarrier Pulse Width Modulation techniques with Sinusoidal reference for single phase seven level cascaded Z-source inverter designed with three intermediate Z-source networks connected between the input source inverter circuit. The cascaded Z-source based MLI technique enhances the fundamental output voltage and reduces the Total Harmoni...

This paper investigates the performance analysis of various Multicarrier Pulse Width Modulation strategies with Sinusoidal reference for single phase seven level diode clamped Z-source inverter designed with two intermediate Z-source networks connected between the input source and inverter circuit. The diode clamped Z-source based MLI strategy enhances the fundamental output voltage and reduces...

The advancement of digital signal processors (DSPs) and programmable logic devices in modern power electronics systems offer great control flexibility and capability, providing attractive features particularly for applications in which complex control tasks are involved. This dissertation investigates some DSP based advanced control algorithms for pulse-width modulation (PWM) inverter applicati...

This study presents the different control techniques of Z-Source inverter (ZSI) and compares them for same modulation index. Different from traditional inverters, in ZSI circuit configurations simple boost, maximum constant boost can be utilized to perform DC-AC voltage conversion with shoot-through states. The operation principles are explained detail. duty ratio, factor, gain each technique c...