魏萍,李波.基于Quasi-Z源矩阵式变换器电压传输比的研究[J].电测与仪表,2015,52(12):. WEI Ping,LI Bo.Research on Voltage Transfer Ratio for Matrix Converters Based on Quasi-Z Source[J].Electrical Measurement & Instrumentation,2015,52(12):.
基于Quasi-Z源矩阵式变换器电压传输比的研究
Research on Voltage Transfer Ratio for Matrix Converters Based on Quasi-Z Source
This paper proposes a new matrix converter topology, which is a combination of Quasi-Z network and single-phase matrix converter. The proposed single-phase Quasi-Z-Source matrix converter can provide a wide range of output AC voltages in buck-boost mode, it can also allow short circuit and open circuit simultaneously. So the device requirements are reduced greatly and thus can help to improve system reliability. What’s more the output waveforms are obtained with a step-changed frequency and a variable amplitude. Firstly, the operation principle and running mode of single-phase Quasi-Z-Source matrix converter are analyzed. On the basic of the converter’s circuit equations, the voltage gain G of the proposed converter is derived. To verify the performance of the converter, the PSIM software has been used and the simulation results verified the proposed theoretical analysis.
