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Abstract
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This paper proposes a multi-stage power generation system suitable for renewable energy sources, which is composed
of a DC-DC power converter and a three-phase inverter. The DC-DC power converter is a boost converter to convert
the output voltage of the DC source into two voltage sources. The DC-DC converter has two switches operates like a
continuous conduction mode. The input current of DC-DC converter has low ripple and voltage of semiconductors is
lower than the output voltage. The three-phase inverter is a T-type inverter. This inverter requires two balance DC
sources. The inverter part converts the two output voltage sources of DC-DC power converter into a five-level line to
line AC voltage. Simulation results are given to show the overall system performance, including AC voltage
generation. A prototype is developed and tested to verify the performance of the converter.
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