DocumentCode
37244
Title
Passivity-Based Stabilization of Resonant Current Controllers With Consideration of Time Delay
Author
Harnefors, Lennart ; Yepes, Alejandro ; Vidal, Ana ; Doval-Gandoy, Jesus
Author_Institution
Corp. Res., ABB, Vasteras, Sweden
Volume
29
Issue
12
fYear
2014
fDate
Dec. 2014
Firstpage
6260
Lastpage
6263
Abstract
Resonant parts can be used in current controllers to suppress harmonics. However, they may cause destabilization of poorly damped grid and/or input-filter resonances, particularly for a nonnegligible converter time delay. This letter presents a design method whereby destabilization is prevented by making the converter´s input admittance passive.
Keywords
delay systems; electric current control; power convertors; stability; damped grid destabilization; harmonics suppression; nonnegligible converter time delay; passivity-based stabilization; resonant current controllers; time delay; Admittance; Delay effects; Harmonic analysis; Minimization; Power conversion; Sensitivity; Converter control; LCL filter; grid interaction; input filter; passivation; resonances; stabilization;
fLanguage
English
Journal_Title
Power Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0885-8993
Type
jour
DOI
10.1109/TPEL.2014.2328669
Filename
6825893
Link To Document