PMSG wind system control for time-variable wind speed by imposing the DC Link current

system,-wind turbine (WT) + permanent magnet synchronous generator (PMSG)-so as to reach an optimal energetic operation at a time-variable wind speed. Wind speed and momentary mechanical angular speed of the PMSG impose the generator load value in the energetically optimal region. By energy balance measurements made with speed and power measurements, the generator load is determined so that the system has been brought into the energetic optimal region. It analyzes the maximum power operation in a WT by changing the load to the generator, while the wind speed significantly varies over time. The coordinates of the maximum power point (MPP) changes over time and they are determined by the values of the wind speed and mechanical inertia. Not always wind system can be lead in a timely manner in the MPP. The speed variation of the wind speed and the inertia value are two fundamental elements on which the MPP operation depends. By prescribing the amount of DC link current, Icc, the main circuit of the converter can achieve a simple and useful system tuning WT + PMSG. Operation control method in the optimal energy region of the WT is based on the knowledge of the Icc current value, which is determined by wind speed and momentary mechanical angular speed, MAS.