In order to enhance the dynamic response of the system and reduce the harmonic content of the input current in the ac side, an improved predictive direct power control strategy which combined with sliding mode controller is proposed in this paper, which improve the anti-jamming ability of the dc-side voltage. Furthermore, this paper adopted a simple three-level space vector modulator (SVM) with inherent neutral-point potential balancing capability, which can be combined with SMC-PCC strategy as an overall control system. At last, the correctness and effectiveness of the proposed control scheme are verified by experimental prototype of a 2.2kW rectifier system.