This paper presents a control scheme using active and reactive power control with advanced backstepping control of doubly-fed induction machine (DFIM) based on variable-speed wind-energy-conversion system (WECS). The modelling and control of WECS are introduced using DFIM with back-to-back converters for a variable-speed application. Also, the aim is to design and compare two-distinct decoupling control strategy to control the rotor-side converter with integral proportional (PI) control (indirect control) strategy and nonlinear integral backstepping control strategy, this system employs a maximum power-point tracking (MPPT) strategy to maximize the extraction of power during the conversion process. The proposed studied system is tested using MATLAB/Simulink in terms of decoupling, the robustness against-parameters variations and the reference-tracking stability. This results is completed by a comparative study which  reflect the better performance of studied control method. According to simulation data, the control scheme improves DFIM-turbine system performance.