A three-phase inverter is supplying the output load of 100kW, 0.95 p.f. lagging with 400VLL.rm and...

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A three-phase inverter is supplying the output load of 100kW, 0.95 p.f. lagging with 400VLL.rm and fundamental frequency f₁ = 50Hz. The output voltage THD must be limited to 3%. (a) Calculate the values of output load resistance and inductance. (b) Design the DC-link voltage Va, frequency modulation index m, and amplitude modulation index. (c) Design a simple LC low-pass filter using the following assumption: Filter resonant frequency wn=1/√LC = 2n(m/f)/10 Filter reactive power at fundamental frequency f₁ is 5% of load apparent power, Qe = 0.055 Load Design suitable values of RLF and RCF. (d) Use parameters obtained from (a)-(c) to simulate the circuit in MATLAB/Simulink. (e) Plot the voltage waveforms before and after filter, load current waveform and DC-side current waveform. (f) plot the voltage harmonic before and after filter. (g) Calculate the output power, the output voltage THD using FFT tool. A three-phase inverter is supplying the output load of 100kW, 0.95 p.f. lagging with 400VLL.rm and fundamental frequency f₁ = 50Hz. The output voltage THD must be limited to 3%. (a) Calculate the values of output load resistance and inductance. (b) Design the DC-link voltage Va, frequency modulation index m, and amplitude modulation index. (c) Design a simple LC low-pass filter using the following assumption: Filter resonant frequency wn=1/√LC = 2n(m/f)/10 Filter reactive power at fundamental frequency f₁ is 5% of load apparent power, Qe = 0.055 Load Design suitable values of RLF and RCF. (d) Use parameters obtained from (a)-(c) to simulate the circuit in MATLAB/Simulink. (e) Plot the voltage waveforms before and after filter, load current waveform and DC-side current waveform. (f) plot the voltage harmonic before and after filter. (g) Calculate the output power, the output voltage THD using FFT tool.

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a Calculation of output load resistance and inductance Output load resistance R VLLrms2 PF kW 4002 095 100 144 ohms Output load inductance L VLLrms2 2 pi f1 kW 4002 2 pi 50 100 1273 mH b Design of DCl... View the full answer