Sensor less control of PMSG-based wind turbine with parallel distributed compensator with fuzzy observer

This paper deals with the proposing a non-linear sensorless control of the permanent magnet synchronous generator over wide range of operations. A novel fuzzy model observer is proposed to estimate the rotor speed, which can estimate the speed accurately. Furthermore, the non-linear behavior of permanent magnet synchronous generator deteriorates the performance of the most linear conventional controllers. To overcome the nonlinearity behavior of the plant, a parallel distributed compensator is proposed. The fuzzy model observer with the parallel distributed compensator controller is used in a maximum peak power tracking scheme. The controller stability and robustness are established by solving the linear matrix in equalities constraints based on the Lyapunov stability theorem. In comparison with the other control schemes, the guaranteed stability and robustness, and improved transient response are the merits of the proposed sensorless parallel distributed compensator.