A robust multi-resonant PR regulator for three-phase grid-connected VSI using direct pole placement design strategy

@article{Li2013ARM,
  title={A robust multi-resonant PR regulator for three-phase grid-connected VSI using direct pole placement design strategy},
  author={Bin Li and Ming Zhang and Long Huang and Lijun Hang and L. M. Tolbert},
  journal={2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)},
  year={2013},
  pages={960-966}
}
An averaged switching model of grid-connected inverter using dual-loop current control with LCL-filter in discrete domain is built under stationary frame. A proportional resonant (PR) regulator is adopted in the current-loop to track the given fundamental sinusoidal current without steady state error. In addition, in order to reduce the low frequency harmonics, the resonance of 5th harmonics is adopted. Because the system is of high order and complex, the theory of root locus is proposed to… CONTINUE READING

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