ANFIS Based Controller for Rectifier of PMSG Wind Energy Conversion System

Wind energy is becoming a very useful energy source at present. With the increasing wind power penetration, improvements are required in order to comply with the grid interconnection requirements. The focus of this paper is to maximize the output power and address the output control of a utility-connected Permanent Magnet Synchronous Generator (PMSG) for wind power generation systems. PMSG has a back-to-back converter to control the output of the PMSG driven by the wind turbine. To supply commercially the power of WPGS to the grid without any problems related to power quality, the real and reactive powers of PMSG are strictly controlled at the required level. In this paper it is realized with the Adaptive Neuro Fuzzy Inference System (ANFIS) controller based on the field orientation control. The DC voltage of the DC link capacitor is also controlled at a certain level with the conventional Proportion-Integral controller of the real power. Studies demonstrate that the performance of the system with the ANFIS controller parameters permits an improvement of the converter capability and system performance.