There are two major problems faced by doubly fed induction generator（DFIG）: poor low voltage ride through（LVRT） capability and fluctuating output power. To solve these problems， a doubly fed induction wind power generation system integrated with superconducting magnetic energy storage（SMES） and current source series grid side converter（CS-SGSC） is proposed. The proposed system can greatly enhance the output power quality of DFIG with the SMES as energy storage and buffering device; it can also protect the stator voltage of DFIG to enhance its LVRT capability. Simulation results verify the effectiveness of the proposed topology and its corresponding control strategies.