Abstract：This paper proposes a high frequency AC-AC converter based on Z-source, the converter is composed of input filtering circuit, dumping inductor, input cycloconverter, high frequency converter, output cycloconverter, control switching, and output filtering. The paper gives in detail the work theory of the electric circuit and phase-shifted control strategy. Finally, the simulation and experimental results shows that the converter has the merits of output transformation, frequency conversion, high frequency electrical isolation, two phase power transmission. And it establishes a key technique foundation for IUT(intelligent universal transformer), regulated sinusoidal AC power supply, regulator, and power network compensation.
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2011, Vol. 26 
