Abstract
This paper proposes a non-isolated qZS converter to feed a frequency inverter applied on a standalone photovoltaic tricycle. The converter uses the clipping voltage of the power switch to be added to the output voltage, which allows reducing the duty cycle values and increase the gain of the converter. Some converter topologies, based on high gain coupled inductors and voltage multiplier cells cause large current ripple in the input and voltage spike at the power switch. As a consequence the lifespan of the components and the converter efficiency are reduced. The proposed converter showed a low current ripple in the input and the power switch was submitted to lower voltage. High gain qZS dc-dc converters operation principle and analysis are shown, and verified by simulation and experimental results as well as a losses analysis.
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