Volume 36 Issue 3
Mar.  2010
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Zhang Jin, Qi Bojin, Zhang Shaoruet al. Control strategy for single-phase Z-source inverter[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(3): 357-362. (in Chinese)
Citation: Zhang Jin, Qi Bojin, Zhang Shaoruet al. Control strategy for single-phase Z-source inverter[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(3): 357-362. (in Chinese)

Control strategy for single-phase Z-source inverter

  • Received Date: 23 Mar 2009
  • Publish Date: 31 Mar 2010
  • The control strategy for single-phase Z-source inverter, which consisted of Z-source network voltage feedback, ac-side instantaneous feedback and voltage ripple feed-forward loop, was presented. Due to the non-minimum-phase effect of Z-source network, an ac-side instantaneous controller was incorporated based on the Z-source network voltage feedback loop to guarantee fast dynamic response. The Z-source network has voltage ripple during operating with the heavy load, which decreases the performance of the output voltage. The proposed voltage ripple feed-forward controller could modify the modulation index, thus the effects were prevented from propagating into the ac-side and hence the quality of the output ac voltage waveform was improved. Both computer simulation and experimental results verify the effectiveness of the proposed strategy.

     

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