Four Novel PWM Shoot-Through Control Methods for Impedance Source DC-DC Converters

作者：Vinnikov Dmitri^*; Roasto Indrek; Liivik Liisa; Blinov Andrei

来源：Journal of Power Electronics, 2015, 15(2): 299-308.

DOI：10.6113/JPE.2015.15.2.299

• DC-DC power converters
• Pulse width modulation converters
• Pulse width modulation
• Quasi-Z-source inverter
• Shoot-through control methods
• Switching losses
• Zero current switching
• Zero voltage switching

This study proposes four novel pulse width modulation (PWM) shoot-through control methods for impedance source (IS) galvanically isolated DC-DC converters. These methods are derived from a PWM control method with shifted shoot-through introduced by the authors in 2012. In contrast to the baseline solution, where the shoot-through states are generated by the simultaneous conduction of all transistors in the inverter bridge, our new approach is based on the shoot-through generation by one inverter leg. The idea is to increase the number of soft-switched transients and, therefore, decrease the dynamic losses of the front-end inverter. All the proposed approaches are experimentally verified through an insulated-gate bipolar transistor-based IS DC-DC converter. Conclusions are drawn in accordance with the results of the switching loss analysis.

• 出版日期2015-3