SVPWM algorithm for MMC based AC to DC converter

摘要

This paper presents space vector pulse width modulation (SVPWM) algorithm for Multi Modular Converter (MMC) based three phase AC to DC converter. The SVPWM has several advantages over conventional sine triangle pulse width modulation algorithms. This paper presents simplified computation of SVPWM and algorithm is independent of the voltage levels, so the proposed algorithm can be extended to any number of sub-models. The mathematical model of the proposed MMC is presented. A rotating d-q reference frame closed loop vector control algorithm is used for the control of the converter. The proposed MMC based AC to DC converter is simulated in Matlab/Simulink to validate the proposed algorithm. The simulation results are presented.