A Three-Phase Multilevel Hybrid Switched-Capacitor Pwm Pfc Rectifier For High Voltage Gain Applications



To solve the problem that three-to-five-phase matrix converter (MC) cannot supply symmetrical voltages to unbalanced loads, a topology of five-phase six-bridge indirect MC and a carrier-based pulse-width modulation (PWM) method are proposed.

A midline bridge is added to the neutral point of five-phase loads in inverter stage. The neutral point voltage is analyzed and derived by space vector PWM (SVPWM) method for calculating the duty ratio of mid line bridge.

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