Modeling And Simulation of Full Bridge Zero Voltage Switching Inverter with Fuzzy Logic Controller

Abstract

The zero voltage switching (ZVS) full-bridge inverter circuit with a fuzzy logic controller is simulated and proposed in this paper. The condition of zero voltage switching is analyzed & produced for main MOSFET switches for a large range of power. The reverse-recovery of the body diode between the drain and source of MOSFET switches is reduced & the condition of ZVS is achieved. This paper proposed that a new synchronization of the closed feedback loop provided to the fuzzy logic controller by the circuit. A fuzzy logic controller (FLC) is simulated which decreases the computational cost & assures that the circuit load voltage is almost constant as well as increases the efficiency of the circuit. It also optimizes the performance of the inverter. To validate the effectiveness of the simulated control approach, the voltage, current, efficiency curves & load power waveforms of the proposed inverter circuit are presented. The grid-connected full bridge inverter with the DSP controller was implemented which produces 98.8% efficiency but in the end, the modeling and simulation of ZVS inverter with a fuzzy controller are used to extract the result & discuss the feasibility and validity of the new proposed circuit. In according to the simulation results, maximum efficiency 99.0% is achieved and it is maximum in comparison with previous techniques were used with ZVS full-bridge inverter circuit.