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http://dx.doi.org/10.6113/TKPE.2016.21.5.404

Stability Analysis of Current Control based on Virtual Resistor for Single-Phase Grid Converters with LLCL Input Filters  

Bae, Cheol-Ju (Electric Equip. Develop. Team, Hyundai-rotem Comp.)
Lee, Dong-Choon (Dept. of Electrical Eng., Yeungnam University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.21, no.5, 2016 , pp. 404-410 More about this Journal
Abstract
To avoid the stability issues of LLCL filters, passive or active damping methods to eliminate the resonance phenomena are required. In this paper, system stability of a current control is analyzed when the active damping scheme based on the virtual resister is utilized in single-phase grid converter systems with LLCL input filters. The control performance according to the parameters of the virtual resistance is investigated. The validity of stability analysis was verified by simulation and experimental results.
Keywords
Active damping; Grid converter; LLCL filters; Stability; Virtual resister;
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Times Cited By KSCI : 2  (Citation Analysis)
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