A Five-Switch Active NPC With Low Output Voltage THD For Photovoltaic Applications

Multilevel Inverters (MIs) have great applications These days as one of best answer for medium and high power usages. The Five-Level Active-Neutral-Point-Clamped Inverter (FANPCI) merges the specifications of the typical flying-capacitor type and Neutral-Point-Clamped type inverter and was commercially used for industrial applications. In this paper, a new five-level five active switches and four diodes has been proposed, which employs only five active switches and four discrete diodes to produce all the five levels. Also, the modulation technique applied for the five-level five-switch NPC inverter has been discussed. Finally, a 4KVA single-phase prototype has simulated by using the PSPICE software to check the feasibility of the presented structure and control strategy.