Distributed Energy Systems

A. Keyhani and Jin-Woo Jung
Ohio State Univ., Columbus, OH, USA ;

This paper appeares in : Journal of Iranian Association of Electrical and Electronics Engineers
Volume: 1
No: 2
Date: Summer and Fall, 2004

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Abstract:
This paper presents a detailed circuit analysis and PWM implementation of a fuel cell based Z-source converter using L and C components. The Z-source 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 state space 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 up the DC-link voltage and generating a sinusoidal AC output voltage. To verify the effectiveness of the analyzed circuit model and modified space vector PWM technique, simulation results using Matlab/Simulink will be presented under an open-loop control and a closed-loop control.