Influence of Dead-Time and Diode's Reverse Recovery on the Input Current Ripple of Three-phase Voltage Source Inverters

This paper provides analytical equations to model the influence of dead-time and diode's reverse recovery on the input current ripple of a three-phase voltage source inverter. Analytical equations are derived and then verified by simulation and experiments. The influence of dead-time is also modeled heuristically as a linear relationship between the dead-time and the input current ripple values. A comparative analysis shows that the analytical equations proposed here are more accurate in predicting the input current ripple value than the heuristic method.