In this paper

a kind of design method for LCL filter with priority of filtering result is proposed for the three-phase grid-connected inverter including LCL filter on the basis of system input and output model and transfer function. For suppressing the inherent resonance of LCL filter

a kind of capacitive current active damping method is proposed in the three-phase grid-connected inverter based on synchronous rotating frame. Finally

both the correctness and effectiveness of the proposed method is proved through simulation and experiment.