Abstract: The current quality in PV grid-connected inverters is deteriorated due to interference of grid voltage and couplings between the phases in dq frame,especially under the unbalanced grid conditions. Therefore,a positive and negative sequence feed-forward technique was proposed for a alternative solution. The double synchronous reference frame is utilized to eliminate the negative-sequence component and extract the positive-sequence component for decoupling control. In order to avoid dead-time effect,compound control of repetitive controller with PI controller is used as a current harmonic compensator. The validity of the proposed control scheme is demonstrated through simulations. Experimental results of decreasing the harmonic content of grid-connected current also shows the effectiveness.