Design of pole placement controllers for doubly-fed induction generators in the complex domain

Three pole-placement controllers are designed for the doubly-fed induction generator (DFIG) in a stator voltage-oriented frame. The pole placement technique is used to compute the parameters of the feedback controller to regulate the active and reactive powers through the rotor side voltage. The main contribution of this paper is representing the DFIG model in the complex domain to reduce the order of the system, yielding simple expressions for the controller gains. Simulations in MATLAB/SIMULINK are used to assess the effectiveness of the proposed controllers.