Controlled Dual Buck Inverter

An inverter is a power electronic device that is used for high voltage and high power application because of its characteristics of synthesizing a sinusoidal voltage on a DC source. The inverter is improved on the basis of dual buck inverter, and it retains the advantage of no reverse recovery of body diode. The DC voltage utilization rate can be increased by adopting the voltage commutation-bridge instead of the voltage- dividing capacitors in the inverter. Besides, comparing with other dual buck inverters, the inverter has just one filter inductor, which can make the volume and weight of the system decreased observably and improve the integration. The controlling method, combining the high and low frequency modulation, is adopted to weaken the complexity of control and improve the reliability and stability of the system. Feed forward loop help to make a constant output voltage if the source voltage is varied. The simulation of feed forward Controlled dual buck full-bridge inverter is done using MATLAB/Simulink software. Arduino is used for generating control pulses and for feed forward controlling.