Study on the construction method of Z-source DC-DC converters

DC-DC converters with impedance network usually have the feature of high step-up gain, which is suitable to be applied in the distributed generation systems. As more and more topologies have been proposed, it is significant to summarize the construction method of Z-source DC-DC converters and compare their performance. In this paper, three typical connection ways between the power source and the impedance network have been concluded. Then different kinds of Z-source DC-DC converter can be obtained by selecting the impedance network type, connection way to the power source and the output current style. Finally, the feasibility of the proposed methodology has been verified by a series of Z-source DC-DC converters.