Enhanced space vector PWM for six to three-phase matrix converter interfacing PMSG with the grid

This paper presents a complete analysis, design and implementation of an enhanced space vector pulse width modulation (SVPWM) control for six-phase to three-phase grid connected matrix converter. The matrix converter (MC) is designed based on 18 bidirectional switches in order to interface a high performance fault tolerant multiphase permanent magnet synchronous generator (PMSG) to the main utility grid. The proposed converter along with its SVPWM algorithm offers a bidirectional power flow, full control of the input and the output power factor, no limitations on the input and output frequencies, nearly sinusoidal output voltage and input currents and an improvement in the maximum voltage ratio. The MC and its control system are demonstrated, analyzed and discussed with extensive MATLAB/Simulink simulation studies. The simulation results show that the MC based on its proposed SVPWM has a significant improvement in the maximum voltage ratio and the THD which will make it a good candidate for interfacing distributed generators to the utility grid.