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Series Z-Source network, Associate in Nursing enlargement of the favored conception of Z-source dc link, was initially projected for enhancing the output voltage of power electronic inverters. Throughout this paper, that concept is extended on a three-phase indirect matrix converter. The converter depends on the ultra-sparse matrix topology characterized by the minimum vary of semiconductor switches. The series Z-source network is placed between the three-switch input rectifier stage and additionally the six-switch output electrical converter stage, in either the positive or negative rail. A short shoot-through state produces the voltage boost. Associate in Nursing optimum pulse breadth modulation technique is developed for higher boosting capability of the converter and reduce of switch losses. A comparison is made between the matrix converters mistreatment series and customary cascade Z-source networks. The inpouring current and Z-source capacitor's voltage are reduced inside the series Z-source matrix converter. [ABSTRACT FROM AUTHOR]

In recent years, due to energy crisis, renewable energy distributed power generators, such as wind turbine, photovoltaic (PV) cell, fuel cell, and thermoelectric generation modules, are becoming more and more popular in industrial and residential applications. Many renewable energy such as PV cell, fuel cell and thermoelectric generation can only output dc voltage. So an inverter interface has to be utilized for grid-connected applications. So many inverter topologies have been proposed and reviewed recently like as Z-source proposed inverter. In this proposed semi-Z-source inverters for a single-phase photovoltaic (PV) system. With low cost and doubly grounded features. These semi-Z-source inverters only two active switches. To achieve the same output voltage as the traditional voltage-fed full-bridge z-source inverter. The input dc source and the output ac voltage of the semi-Z-source inverter share the same ground. Thus lead into less leakage ground current advantages over other non-doubly grounded inverters. [ABSTRACT FROM AUTHOR]

In this paper, a photovoltaic (PV) generation system based on Hybrid Multilevel inverter is proposed. Hybrid multilevel inverter gives multilevel operation by using hybrid source, hybrid configuration or hybrid device in such a way to produce output with reduced number of DC sources, high speed capability, low output switching frequency, low switching loss, high conversion efficiency, exibility to enhance and various topologies for different applications. Simulations and analysis are done by the use of MATLAB/SIMULINK software. [ABSTRACT FROM AUTHOR]