Robust Active Damping Methods for LCL Filter-Based Grid-Connected Converters

Marwa Ben Said-Romdhane, Mohamed Wissem Naouar, Ilhem Slama-Belkhodja, Eric Monmasson
2017 IEEE transactions on power electronics  
In this paper an add-on control method is proposed to damp oscillations in the LCL filter of a gridconnected converter. An observer is used to estimate the capacitor current, and successively, a conventional active damping technique is applied. Since the capacitor current is estimated from already available measurements, the proposed active damping method does not need an extra current sensor for the capacitor current. Model analysis and simulation validate the effectiveness of the proposed
more » ... of the proposed control method.
doi:10.1109/tpel.2016.2626290 fatcat:jj5d2tmutrfwxcdt7o3dwpkoka