Generalized Integrator Based Active Damping

In the paper the adaption of the results in
“Highly Accurate Derivatives for LCL-Filtered Grid Converter With Capacitor Voltage Active
Damping” (Zhen Xin et al.)
and further development is given, to apply this active damping approach on converter current feedback control loops. Additionally it is shown that dead time is compensated due to simple proportional feedback of derivative capacitor voltage instead of complex damping functions by means of virtual impedance transformation.