Abstract—This paper compares the performance of alternative direct power control strategies applied to doubly fed induction generator (DFIG). These methods directly investigate stator active and reactive power variations within a fixed sampling period. Simulations are performed using detailed models in Simulink/Matlab. Transient performance and steady state operation of the DFIG-based wind plants are illustrated.

Index Terms—Doubly fed induction generator (DFIG); direct power control (DPC); transient performance; steadystate operations.

Alireza Nazari is with High Voltage Lab.-Iran Uni of Sci and Tech.-University St.-Hengam Avenue.-Resalat Square, Iran (email:nazari@elec.iust.ac.ir).