Design of fractional delay repetitive control with a dead-beat compensator for a grid-tied converter under distorted grid voltage conditions
Andrzej Straś , Bartłomiej Ufnalski , Marek Michalczuk , Andrzej Gałecki , Lech Grzesiak
The paper presents the design of a current control system of a grid-tied converter which provides high dynamic in transients states and symmetrical sinusoidal currents under distorted and asymmetrical grid voltage conditions. The current control loop contains a dead-beat compensator and a plug-in fractional delay repetitive controller. The whole control system is designed with regard to signal processing delay present in the control loop. The tuning procedure of the repetitive control uses particle swarm optimization to determine the optimal gain, phase lead and filter parameter. The resulting control system with optimal parameters is applied on the digital signal controller and verified experimentally on the laboratory test bench, which is the main contribution of the paper.
|Journal series||Control Engineering Practice, ISSN 0967-0661, e-ISSN 1873-6939|
|Publication size in sheets||0.5|
|Keywords in English||AC–DC power converters, Current control, Particle swarm optimization, Power quality, Repetitive control|
|ASJC Classification||; ; ;|
|Score||= 100.0, 17-07-2020, ArticleFromJournal|
|Publication indicators||= 0; : 2018 = 1.872; : 2018 = 3.232 (2) - 2018=3.296 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.