Project 1

Part A:

The three-phase diode rectifier is supplying approximately 2.2 kW load with VLL=208V at 60 Hz, Ls=1 mH and Cd=1100 μF, where Cd is the DC side capacitor. Design the circuit in one of the simulation platforms (MATLAB or Ltspice/Simetrix) and obtain the circuit waveforms. Based on their simulation studies find out the following:

Average dc voltage output, peak-to-peak ripple, the input current THD, DPF and PF and average dc current. Also give the selected devices with justification

The simulink model is shown below:-

The prameters used in the model is shown below:-

Now save and RUN the simulation

outputs waveforms are shown below:-

while doing FFT Analysis my MATLAB totally got crashed and so I am unable to do the FFT analysis so i will attach the data through Mail sir

Part B:

A three-phase thyristor converter is supplied by 480V (line-line), 60 Hz source. Its internal inductance Ls1=0.2 mH. The converter has a series inductance Ls2=2.0 mH. The load is represented as RLE load with Ld=5 mH, rd=0 and Ed=600V and the delay angle is α=20°. Using the simulation obtain vs, is and vd waveforms and calculate Is1, Is, DPF, PF and % THD. Also give the selected thyristor based on the simulated studies with proper justification

The model used in the simualtion is shown below:-

The model parameters used in the simulation is shown below:-

Now save and RUN the simulation with stop time as 0.2

output waveforms are shown below:-

while doing FFT Analysis my MATLAB totally got crashed and so I am unable to do the FFT analysis so i will attach the data through Mail sir