A Novel Dual-Boost DC-AC Circuit for PV Inverter

For the characteristics of low DC voltage output of PV array, a novel BOOST DC-AC inverter cirCuit is proposed, it is used DC chopper and based on the AC chopper principle. The tasks of boost and inverter are undertaken only by one level BOOST DC-AC cirCuits. With adjustable high voltage transfer ratio, PV inverter can be easily reaLized. By Matlab / SimuLink simulation and verified in the prototype, the correctness of the topology cirCuit and reaLization were proved.