Bir Fazlı Z-Kaynaklı Düşürücü-Yükseltici Matris Çeviricinin MATLAB/Simulink Benzetimi.

In this study, a single-phase matrix converter structure using a z-source impedance network is modeled and simulated to obtain a variable output voltage as well as a stepped varying output frequency. With this topology, the voltage gain limitation of traditional matrix converters can be overcome, and the output voltage and frequency can be increased or decreased. The matrix converter provides the opportunity to step change the output frequency with the switching strategy when performing direct AC-AC conversion. With this direct conversion feature, the need for a large DC link capacitor used in conventional converters has been eliminated, and energy conversion is performed by connecting the input directly to the output phases via bidirectional switches. Since DC link elements are not used, both cost and size are reduced. In addition, a safe commutation strategy is realized by adding dead time to the switches while performing the commutation operation. This converter circuit can be used in the industry where a stepped frequency change, for example for the speed change of a single phase induction motor, or variable voltage or both are required. The working principle of the single-phase z-source matrix converter circuit is examined. The circuit is modelled in MATLAB/Simulink environment and the converter is simulated for different frequencies and output voltage values, and some of the results are presented. Its observed that the modelled z-source matrix converter produces different frequency output voltage both in buck and boost mode. [ABSTRACT FROM AUTHOR]