New direct-SVM method for matrix converter with main input power factor compensation

Since the input filters characteristics design for matrix converter system: to reduce the high harmonic components at the main power supply current and to improve the input voltage distortion for matrix converter, the unity power factor at the main power supply side is only achieved at the high output load and decreases greatly at the light load conditions. This paper proposes a new direct space vector modulation (DSVM) method to achieve the required displacement angle between input voltage and input current of matrix converter. Firstly, this proposed DSVM method introduces new switching patterns for the controllable input power factor of matrix converter and secondly, the power factor compensation method is then suggested. Simulation results with inductive load (RL) and 5-HP induction motor are shown to validate the effectiveness of the proposed method.