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Assignment 7 for 3-Phase Diode Bridge Rectifier | ECE 481, Assignments of Electrical and Electronics Engineering

The University of Tennessee (UT)Electrical and Electronics Engineering
Prof. Leon Tolbert

Material Type: Assignment; Professor: Tolbert; Class: Power Electronics; Subject: Electrical And Computer Engr; University: University of Tennessee - Knoxville; Term: Fall 2009;

Typology: Assignments

Pre 2010

Uploaded on 08/31/2009

koofers-user-wql
koofers-user-wql 🇺🇸

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Exercise 7 3-Phase Diode Bridge Rectifier YY $$ I ly Ry 1ZX 3ZN 52M Le OR, IA _WrA—* ~ 1g Naw} ca “a 3 Rioad —STYYY MW\——+-— | ~~ d 4Z 6Z\ 2Z Nominal Values: VLL (rms) = 208 V at 60 Hz Ls = 0.1 mH Rg=1mQ Lq=0.5 mH Ra =5mQ Cg = 500 pF Road = 16.5 Q Problems DSPECTS 1 (a) Obtain Vab, vd and iq waveforms. (b) Obtain vg and ig waveforms By means of Fourier analysis of ig, calculate its harmonic components as a ratio of Tal. Calculate Ig, Ig1, Idis, %THD in the input current, input displacement power factor and the input power factor. How do the results compare with the 1-phase diode- bridge rectifier of Exercise 3. Calculate Icap (the rms current through the filter capacitor) as a ratio of the average load current Ijoad. Compare the results with that in Exercise 3. Investigate the influence of Lg on the input displacement power factor, the input power factor and the average dc voltage Vg. Suggested range of Lg: 0.1 mH to 10 mH.