This paper proposes the modulation scheme for grid connected full bridge inverter of single phase configuration to achieve ZVS condition with auxiliary switch. The THI PWM strategy is employed to control the auxiliary switch which is evolved from ZVS THI PWM, the DF modulation scheme is incorporated to generate auxiliary switching pulse. The ZVS THI PWM scheme is employed simultaneously on grid connected full bridge inverter and its performance is observed. The ZVS condition of inverter switches is also achieved by short circuit pulses generated from auxiliary switching pulses. The proposed control scheme with THI PWM and DF modulation scheme is modeled, the performance of full-bridge inverter of single phase configuration with control scheme is analyzed using MATLAB. The results depict that the proposed converter control scheme exhibits better performance compared to DF SPWM.

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