An improved active damping method with grid-side current feedback to maximize damping ratio for LCL-type grid-connected inverter

@article{Wu2017AnIA,
  title={An improved active damping method with grid-side current feedback to maximize damping ratio for LCL-type grid-connected inverter},
  author={Weibiao Wu and Li Peng and Yu Qi and Qian Liu and Zeyi Huang and Fangming Dong and Manlin Chen and Bowen Wang},
  journal={2017 IEEE Energy Conversion Congress and Exposition (ECCE)},
  year={2017},
  pages={5607-5611}
}
LCL-type grid-connected inverter is largely utilized in renewable generation system due to high harmonic suppression. In order to tackle the resonance issue induced by LCL-type filters, grid-side current feedback active damping method (GCFADM) without extra sensors has been extensively investigated. However, the damping characteristic under GCFADM has not been fully evaluated. In this paper, an improved GCFADM based on proportional derivative algorithm is proposed to maximize damping ratio… CONTINUE READING

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