Simulation of Three-phase PWM AC-AC Matrix Converter without the DC-Link Testing with the Passive Loads and without input filter

This paper presents the conversion of the Three-phase AC input to the Three-phase AC output without DC Link. This converter is using the 9-units of bidirectional, IGBT-Power Diode. The converter is converting a constant utility three-phase sinusoidal supply voltage and frequency into a variable output voltage and frequency through alternation of the frequency and modulation index of the SPWM signals used by the converter. A mathematic approach is initially applied to describe the principle of the Three-phase PWM AC-AC Matrix Converter. Moreover, the harmonic analysis and the total harmonic distortion (THD) of the output side and input side of the voltage and current waveforms are observed at several the output frequencies with the MATLAB/Simulink program These data are used for the implementation of the prototype in the future work.