Abstract

The conversion of AC power to DC power causes harmonics in the input current. By increasing the number of pulses in multi-pulse converters, the Total Harmonic Distortion (THD) in input current can be reduced, and other performance parameters can also be improved. This paper briefly analyzes the pulse multiplication techniques to get 12-pulse, 24- pulse and 36-pulse controlled converters, having a zigzag connected auto-transformer. The effect of increasing the number of pulses, on the performance of AC to DC converters is analyzed by Simulation in MAT LAB software. The comparison in these configurations is presented to indicate their effectiveness."