Harmonic distortion analysis of a three-phase active controlled rectifier for large DC loads

There is no doubt that a three-phase controlled rectifier produces a DC output voltage with minimum ripples compared with a single-phase controlled rectifier. So, the three-phase active controlled rectifier is presented in this paper. The electronic controller that used to control the converter operation is studied, designed, implemented and evaluated. Some interested waveforms are recorded to control both of form factors (F.F) and ripple factor (R.F) to minimize the total harmonic distortion (THD) in the DC output voltage. Moreover, a digital simulation of the practically implemented system is done using MATLAB/SIMULINK program, besides the state-space mathematical model to insure the theoretical and experimental results are close. Finally, both of theoretically calculated results and practically recorded results are compared and found much close to each other.