For the high-voltage ride-through(HVRT) and low-voltage ride-through(LVRT) requirements for a doubly-fed induction generator(DFIG), a fault ride-through scheme and the corresponding coordinated control strategy using series impedance and stator dynamic reactive current are proposed, which fully take advantage of the converter's capability of regulating the stator current. During the grid fault, this protection scheme puts in the stator series impedance instantly to guarantee the control capability of the rotor-side converter. In addition, it dynamically adjusts the stator reactive current and compensate the voltage under grid fault by means of the partial voltage of series impedance. The setting method for series impedance is given to make full use of the stator reactive capacity. This scheme guarantees the safety of the stator winding of DFIG under high-voltage fault, improves the control capability of the rotor-side converter during fault ride-through, and provides reactive support current that satisfies the grid-connection requirements. The effectiveness of the proposed scheme was verified based on an RTDS hardware-in-the-loop simulation platform.