An Effective Control Method for Quasi-Z-Source Cascade Multilevel Inverter-Based Grid-Tie Single-Phase Photovoltaic Power System Academic Article uri icon

abstract

  • An effective control method, including system-level control and pulsewidth modulation for quasi-Z-source cascade multilevel inverter (qZS-CMI) based grid-tie photovoltaic (PV) power system is proposed. The system-level control achieves the grid-tie current injection, independent maximum power point tracking (MPPT) for separate PV panels, and dc-link voltage balance for all quasi-Z-source H-bridge inverter (qZS-HBI) modules. The complete design process is disclosed. A multilevel space vector modulation (SVM) for the single-phase qZS-CMI is proposed to fulfill the synthetization of the step-like voltage waveforms. Simulation and experiment based on a seven-level prototype are carried out to validate the proposed methods. 2005-2012 IEEE.

published proceedings

  • IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS

author list (cited authors)

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

citation count

  • 143

complete list of authors

  • Liu, Yushan||Ge, Baoming||Abu-Rub, Haitham||Peng, Fang Z

publication date

  • February 2014