1. (Figure 4 illustrates the basic blocks of MATLAB Simulink). b) 1/ Integrator 34 Scope Mux Sum E Switch Relational Operator ABAN SAAN MALAYSIA UNIVERS ABAN Rajah 4: Blok asas MATLAB Simulink Figure 4: Basic blocks of MATLAB Simulink a) (Design a model of single-phase half-bridge inverter circuit with resistive load. Those circuit contains 12 VDC input voltage, 2 units of 100 uF DC capacitors, 2 units of IGBT power switches with anti-parallel diodes, a 0.1 mEl series filter inductor, a 200 uF shunt filter capacitor besides a load resistor of 12 S2. The predetermined switching frequency is 10 kHz, the system frequency is 50 Hz, and the amplitude modulation index is 0.8 respectively. Use the provided basic MATLAB Simulink block diagrams at Figure 4 to build the model. The block diagrams model must have a clear labels and symbols.) (Sketch the AC output voltage and AC output current waveforms for a single full cycle of 20 ms.) c) (Determine the value of AC ouput voltage and AC output current respectively.) d) (Evaluate the function of LC filter in the model.)

A three phase inverter below has a Y- connected load. The inverter frequency is fo = 60 Hz and the DC input voltage Vs = 220V. The applied control signal is a 180 deg conduction mode. The RMS Line to Line voltage Vo is equal to 179.63V. The total harmonic distortion (THD) is equal to: Select one: a. 48.34% b. 31.08% c. None of these d. 100%

Simulation is NOT required. Please show calculations please. Thank you.