(Solved): 7.12 For a single-phase inverter with the unipolar PWM switching pattern at 10 kHz and a fundamental ...

7.12 For a single-phase inverter with the unipolar PWM switching pattern at 10 kHz and a fundamental frequency of 60 Hz , design an LCL filter if the voltage across the filter must be less than \( 5 \% \) when the inverter feeds the resistive load of \( 100 \Omega \) from a \( 600-\mathrm{V} \) DC source, modulation index is \( m=0.8 \), and maximum suitable \( f_{r} \) is selected to filter out the harmonics. Also, calculate the maximum filter inductance if the voltage drop must stay within \( 4 \% \).