Passive filter studies on single phase matrix converter (SPMC) operating as an inverter / Hadziratul Qudsiah Abdul Aziz

This report presents the analysis of passive filter studies for inverter applications on single phase matrix converter (SPMC). Basically, the input for inverter application is based on DC with the output in the form of AC which is using well-known Sinusoidal Pulse Width Modulation (SPWM) unipolar switching technique. Loads are represented in the form of resistance. Filter has been used due to its function to reduce harmonic content of the SPMC output waveform. This project will review the conventional passive filter design technique particularly to the LC low-pass filter design. By using this technique and basic formula, the value of inductor (L) and capacitor (C) components can be found through an iterative method. Voltage and current output harmonics are analyzed and corrected by LC low pass filter circuits. LC filter are designed at the DC (input) side as well as at the AC (output) side and simulated on MATLAB/Simulink (MLS). Studies on the effect of inductor (L) and capacitor (C) that acts as a filter for these circuits also have been covered. The comparisons between the simulation model with and without filter can be seen where it will affect the output waveform to become the desired sinusoidal output.