POWER CONTROL OF DOUBLY FED INDUCTION GENERATOR USING DPC METHOD

In this paper, the power control of doubly fed induction generator (DFIG) used in wind power conversion system is done by a method called direct power control method. In this designed system, the rotor voltage of DFIG are controlled based on active and reactive power at each switching period. An experimental test bed has been established in order to test the proposed control method. This experimental setup consists of a DFIG, induction motor with a variable speed driver and a bidirectional back to back converter marked with rotor side control (RSC) and grid side control (GSC). In order to control the system a TMS320F2812 microcontroller is also used. The proposed control algorithm is done using MATLAB and SIMULINK program. The outcome of the experiment shows that stator's active and reactive power of DFIG successfully follow the reference active and reactive power value under different operating condition such as for different speed of rotor and active and reactive powers. It is concluded that harmonic disorders of stator current are under the behavior of proposed control algorithm.