TY - JOUR
T1 - Analysis of the passive damping losses in LCL-filter-based grid converters
AU - Peña-Alzola, Rafael
AU - Liserre, Marco
AU - Blaabjerg, Frede
AU - Sebastían, Rafael
AU - Dannehl, J̈org
AU - Fuchs, Friedrich Wilhelm
N1 - © 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
PY - 2013/6/30
Y1 - 2013/6/30
N2 - Passive damping is the most adopted method to guarantee the stability of LCL-filter-based grid converters. The method is simple and, if the switching and sampling frequencies are sufficiently high, the damping losses are negligible. This letter proposes the tuning of different passive damping methods and an analytical estimation of the damping losses allowing the choice of the minimum resistor value resulting in a stable current control and not compromising the LCL-filter effectiveness. Stability, including variations in the grid inductance, is studied through root locus analysis in the z-plane. The analysis is validated both with simulation and with experiments.
AB - Passive damping is the most adopted method to guarantee the stability of LCL-filter-based grid converters. The method is simple and, if the switching and sampling frequencies are sufficiently high, the damping losses are negligible. This letter proposes the tuning of different passive damping methods and an analytical estimation of the damping losses allowing the choice of the minimum resistor value resulting in a stable current control and not compromising the LCL-filter effectiveness. Stability, including variations in the grid inductance, is studied through root locus analysis in the z-plane. The analysis is validated both with simulation and with experiments.
KW - LCL-filter
KW - passive damping
KW - stability
KW - voltagesource converter
UR - http://www.scopus.com/inward/record.url?scp=84881111390&partnerID=8YFLogxK
UR - http://ieeexplore.ieee.org/document/6324450/
U2 - 10.1109/TPEL.2012.2222931
DO - 10.1109/TPEL.2012.2222931
M3 - Article
AN - SCOPUS:84881111390
SN - 0885-8993
VL - 28
SP - 2642
EP - 2646
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 6
ER -