ANFIS Controller Design of DFIG under Distorted Grid Voltage Situations

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Modeling and controlling of doubly fed induction generator (DFIG) are presented in this paper.‎ The DFIG is considered in the positive synchronous reference framework under distorted grid voltage situations (DGVS).‎ The DFIG electromagnetic torque, active and reactive powers of the instantaneous stator are discussed under the condition of harmonically DGVS.‎ Methods: Four alternative control strategies are implemented on DFIG system to enhance the responses under DGVS.‎ A novel rotor current controller based on adaptive neuro-fuzzy interface system (ANFIS) is developed.‎ The main, fifth and seventh order harmonic components of rotor current are straightly adjusted by ANFIS controller without using any sequential component decomposition techniques at six times the grid frequency.‎ The simulation results of implementing the presented control strategies on a two megawatt wind turbine driven DFIG system validate the feasibility and the robustness of the control scheme.‎ Results: The results are compared with the compound controller consisting of a proportional integral (PI) regulator and a harmonic resonant (R) compensator.‎ Conclusion: This comparison indicates the notable removal of torque and DFIG power oscillations either under DGVS.‎

تاریخ انتشار: 
پنجشنبه, ۲۸ تير, ۱۳۹۷ - ۰۸
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