@ARTICLE{Ufnalski_Bartlomiej_High_2021,
 author={Ufnalski, Bartlomiej and Straś, Andrzej and Grzesiak, Lech M.},
 volume={69},
 number={2},
 journal={Bulletin of the Polish Academy of Sciences Technical Sciences},
 pages={e136739},
 howpublished={online},
 year={2021},
 abstract={The paper features a grid-tied converter with a repetitive current controller. Our goal here is to demonstrate the complete design workflow for a repetitive controller, including phase lead, filtering and conditional learning. All key parameters, i.e., controller gain, filter and fractional phase lead, are designed in a single optimization procedure, which is a novel approach. The description of the design and optimization process, as well as experimental verification of the entire control system, are the most important contributions of the paper. Additionally, one more novelty in the context of power converters is verified in the physical system – a conditional learning algorithm to improve transient states to abrupt reference and disturbance changes. The resulting control system is tested experimentally in a 10 kW converter.},
 type={Article},
 title={High quality repetitive control system for a grid-tied converter under distorted grid voltage conditions – design and implementation},
 URL={http://journals.pan.pl/Content/119423/PDF/17_01977_Bpast.No.69(2)_26.04.21_K1_G_TeX_OK.pdf},
 doi={10.24425/bpasts.2021.136739},
 keywords={AC/DC power converters, current controller, particle swarm optimization, power quality, repetitive control (RC)},
}