Abstract
This thesis outlines the design and development of the AC to AC matrix converter, using the Venturini method. The elimination of the intermediate DC link capacitor needed for the common converters used today, makes it an "all silicon" device to be used for motor drives. Consequently, there is a potential reduction in drive manufacturing cost, as well as improvement in the power-per-weight and power-per-volume ratios. Furthermore, the converter design makes it capable of bi-directional power flow, as well as sinusoidal currents and voltages in both input and output, with a reduction in the harmonics usually associated with converters. Therefore, this report discusses and analyzes all of the above characteristics, as well as the mathematical equations, describing this converter. Also, it includes some related issues, including the bi-directional switch assembly, input current filters, clamp circuits, and the four-step switching commutation strategy. The mathematical model is simulated using Matlab, and the circuit simulated and tested using PSIM. A method in compensating for voltage sag and swell, using the matrix converter, is mentioned, in an effort to reduce motor torque pulsation. Finally, an actual setup of the matrix converter was implemented and controlled by DSP.
Dabbousi, Rami M. Osama (2002). A 3-phase AC to AC matrix converter using the Venturini method. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -2002 -THESIS -D32.