The invention discloses a brushless doubly-fed motor control system, a feed forward control method and a parameter identification method. The control system comprises a d-axis control structure for outputting a d-axis component of a voltage command value and a q-axis control structure for outputting a q-axis component of the voltage command value. The d-axis control structure comprises a first PIcontroller, a first proportional controller, a second proportional controller, a first differential controller, a first superimposer and a second superimposer. The first proportional controller, the second proportional controller and the first differential controller are used for generating a first d-axis intermediate component, a second d-axis intermediate component and a third d-axis intermediate component respectively. The first PI controller is used for outputting a d-axis component of a voltage initial reference value; and the second superimposer is used for carrying out superposition processing on the d-axis feed forward quantity of the voltage reference value and the d-axis component of the voltage initial reference value to output a voltage command value. The control system eliminates a coupling term between the current and voltage of a control winding, and realizes accurate closed-loop control.