DC link voltage control of reduced switch VSI-PWM rectifier/inverter system

초록

Three-phase to three-phase VSI-PWM rectifier and inverter system with eight switches has many advantages, capability of unity or even leading power factor, sinusoidal input current waveforms, bidirectional power flow. This paper derives a mathematical model of the de link voltage control for the system. The transient model for overall and difference voltages of split capacitor de link is developed, and typical simulated and experimental results for dynamic responses are presented to illustrate important performance characteristics to verifiy the developed model.