A Comparative Analysis of Single Phase to Three Phase Power Converter for Input Current THD Reduction

In this paper two topologies of single phase to three phase power converters (SPTP) using one single phase rectifier and two single phase rectifiers connected in parallel at front side respectively are discussed. The topology using two single phase rectifiers reduces the switch current, total harmonic distortion in the input supply current and makes the input current nearly in phase with supply voltage. Though the numbers of switches are more in two single phase rectifier topology but the power loss may be lower than the topology using one single phase rectifier. Both the topologies are simulated in MATLAB/SIMULINK and the outputs are compared in terms of THD of input supply current. In both the rectifier PWM controlled technique is used.