Overview of Space Vector Modulations for Three-Phase Z-Source/Quasi-Z-Source Inverters Academic Article uri icon

abstract

  • Three existing and one extended space vector modulations (SVMs) for the three-phase Z-source/quasi-Z-source inverter (ZSI/qZSI) are investigated. The different switching control patterns, the available maximum shoot-through duty ratio, the maximum voltage stress across the switch versus voltage gain, and efficiency are compared in detail. A total average switch device power taking into account the shoot-through current stress is proposed to evaluate the total stress of power switches. Simulation and experimental results of the prototyped qZSI verify the theoretical analysis. The six parts of shoot-through time intervals will reduce the inductor current ripples, and improve the qZSI efficiency. Also, the maximum voltage stress and total average switch power will benefit from the shoot-through division. However, the division method impacts these performances of qZSI. © 2012 IEEE.

author list (cited authors)

  • Liu, Y., Ge, B., Abu-Rub, H., & Peng, F. Z.

citation count

  • 125

publication date

  • October 2013