DocumentCode :
1756269
Title :
An Active Damper for Stabilizing Power-Electronics-Based AC Systems
Author :
Xiongfei Wang ; Blaabjerg, Frede ; Liserre, Marco ; Zhe Chen ; Jinwei He ; Yunwei Li
Author_Institution :
Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark
Volume :
29
Issue :
7
fYear :
2014
fDate :
41821
Firstpage :
3318
Lastpage :
3329
Abstract :
The interactions among the parallel grid-connected converters coupled through the grid impedance tend to result in stability and power quality problems. To address them, this paper proposes an active damper based on a high bandwidth power electronics converter. The general idea behind this proposal is to dynamically reshape the grid impedance profile seen from the point of common coupling of the converters, such that the potential oscillations and resonance propagation in the parallel grid-connected converters can be mitigated. To validate the effectiveness of the active damper, simulations and experimental tests on a three-converter-based setup are carried out. The results show that the active damper can become a promising way to stabilize the power-electronics-based ac power systems.
Keywords :
power convertors; power grids; power supply quality; power system interconnection; power system stability; vibration control; active damper; dynamic grid impedance profile reshaping; parallel grid connected converter; point of common coupling; power electronics converter; power electronics-based AC systems stabilization; power quality problem; Current control; Gain; Harmonic analysis; Impedance; Rectifiers; Shock absorbers; Stability analysis; Active damper; grid impedance; parallel grid-connected converters; resonance propagation; stability;
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/TPEL.2013.2278716
Filename :
6583340
Link To Document :
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