Distributed Energy Systems

This paper presents a detailed circuit analysis and PWM implementation of a fuel cell based Z-source converter using L and C components. The Zsource converter uses the shoot-through that simultaneously turns on both power switches in a leg in order to boost a DC-link voltage. A discrete time statespace model of the Z-source converter is given for DSP implementation. Also, a modified space vector pulse width modulation is described in detail for stepping upthe DC-link voltage and generating a sinusoidal AC output voltage. To verify the effectiveness of the analyzed circuit model and modified space vector PWMtechnique, simulation results using Matlab/Simulink will be presented under an open-loop control and a closedloop control.