Adaptive feedforward algorithm without grid impedance estimation for inverters to suppress grid current instabilities and harmonics due to grid impedance and grid …

J Xu, S ** control based on grid-side current feedback for LCL-filter active power filter
T Gao, Y Lin, D Chen, L **_for_VSCs_with_LCL_filters.pdf" data-clk="hl=en&sa=T&oi=gga&ct=gga&cd=6&d=16137429642505881608&ei=7JOlZ-zcC7CH6rQPpf3w2Qs" data-clk-atid="CAhslcKq898J" target="_blank">[PDF] strath.ac.uk

All-Pass-Filter-Based Active Dam** for VSCs With LCL Filters Connected to Weak Grids

J Roldán-Pérez, EJ Bueno… - … on Power Electronics, 2018 - ieeexplore.ieee.org
LCL filters are commonly used to connect voltage-sourced converters (VSCs) to the grid.
This type of filter is cheaper than a single inductor for the same current total harmonic …

Design of LCL and LLCL filters for single‐phase grid connected converters

M Sanatkar‐Chayjani, M Monfared - IET Power Electronics, 2016 - Wiley Online Library
Compared with the traditional L filters, the high order LCL and LLCL filters for grid
integration of voltage source converters offer better switching harmonic attenuation even …

A simple method for passivity enhancement of current controlled grid-connected inverters

A Akhavan, JC Vasquez… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Grid-connected inverters with LCL filter work stable using active dam** methods.
However, the stability of the control system can be threatened easily by grid impedance …

Robust Active Dam** in LCL-Filter-Based Medium-Voltage Parallel Grid Inverters for Wind Turbines

R Pena-Alzola, J Roldán-Pérez… - … on Power Electronics, 2018 - ieeexplore.ieee.org
LCL-filter-based grid-tie inverters require dam** for the current-loop stability. There are
only software modifications in active dam**, whereas resistors are added in passive …