Buck-Boost In-Out of Phase Y-source AC Matrix Converter

Abstract

Anew class of buck-boost AC/AC single-phase Y-source matrix converter is presented in this paper. The proposed/AC matrix configuration can boost the output voltage in out-of-phase/in-phase in related to the input voltage. Also, it can be bucked the output voltage with respect to the input voltage with out-of-phase/in-phase of input and output voltages. For eliminating the voltage overshoots on the converter power switches without the need of using the snubber circuit, a safe-commutation technique is applied on the proposed converter to create a path for the current to flow continuously. The details analysis and the operating principles have been introduced for the proposed AC/AC single-phase Y-source matrix converter. To evaluate the performance of the converter, a co-simulation using OrCAD/PSpice and Matlab/Simulink has been developed. The simulation shows that the voltage at the output can be boosted or bucked by varying the duty cycle, while the output voltage can be out-of-phase/in-phase with respect to the input voltage by changing the PWM strategy.