Dead-time compensation scheme for adjustable dead-time controlled three-phase resonant snubber inverter

RSI (resonant snubber inverter) is able to be raised power conversion efficiency by applying the adjustable dead-time control. However, when the adjustable dead-time control is applied to RSI, output current THD (total harmonics distortion) increases. As a solution of this problem, a dead-time compensation scheme was applied to adjustable dead-time controlled single-phase RSI. In addition, the effectiveness of the control scheme was verified. However, a dead-time compensation scheme was applied only to single-phase. Thus, in this paper, dead-time compensation scheme was applied to adjustable dead-time controlled three-phase RSI, and the effectiveness of the control scheme was verified through simulations and experiments. As result of simulations and experiments, output current THD was able to be decreased.