Fuzzy control strategy for Harmonics compensation in Stand-alone Doubly-Fed Induction Generators with Nonlinear Loads

Abstract

This paper presents a stand-alone doubly fed induction generator (DFIG) supplying a balanced three-phase diode rectifier. These harmonics are rejected by using the rotor current controller in the fundamental synchronous reference frame. The proposed control algorithm is based on a fuzzy logic controller and a bank of resonant filters. In this frame, each resonant filter in the rotor current controller has the possibility of rejecting one pair of the positive and the negative stator harmonic voltages at the PCC. The proposed method describes a stand-alone doubly fed induction generator (DFIG) supplying a balanced three-phase diode rectifier. These harmonics are rejected by using the rotor current controller in the fundamental synchronous reference frame. The proposed control algorithm is based on a fuzzy controller and a bank of resonant filters.