The LCL filter exist resonance problems in photovohaic power generation, it would influence the stability of the system. For LCL filter resonance problem, this paper proposed the active damping control based on capacitor current feedback control, the capacitor current feedback control can be seen as inner current loop to suppress LCL resonance problems and ensure the system is stable ;the repeat control can be seen as the current outer ring,the key is to achieve high-performance tracking control of grid current, and achieve the inverter output current track command current. Finally,the simulat...
