COMPARISON STUDY BETWEEN SLIDING MODE AND TRADITIONAL PI CONTROLLERS OF ACTIVE AND REACTIVE POWER CONTROL OF A DFIG DRIVEN BY WIND TURBINE

摘要

In this paper, we present a comparative study field oriented control of a doubly fed induction generator (DFIG) for variable speed wind energy by two regulators: traditional PI (Proportional Integral) and sliding mode control (SMC). The two regulators are applied in active and reactive power control of the DFIG. The robustness between these two regulators was tested and validated under simulations with a random wind speed. From the simulation results it is observed that the SMC yields better results when compared to the traditional PI controller. The simulation has been carried out using Matlab/Simulink software and the results are presented.