Design MV-STR pitch controller for 100 KW wind turbine

Abstract

In this paper the detailed model of the 100 KW wind turbine with permanent magnet synchronous generator constructed at the Sun and Air Research Institute of Ferdowsi University of Mashhad, is extracted by using mathematical equations and practical simulation. There are a lot of limitations in this turbine performance and control. Therefore the controller designing is a complex task and adaptive control with considering system limitations will lead to an appropriate approach because in that case both the limitations and uncertainties are investigated during the design procedure. In this paper a practical pitch controller is designed based on the self-tuning regulators (STR) and minimum variance (MV) algorithm. The designed controller is applied to the practical simulator and compared with the PI controller. These controllers are utilized and compared to regulation of the pitch angle in both simulation and practical application. The results show that the MV-STR pitch controller leads to smoother pitch signal and generator speed in the same wind conditions. The novelty of this paper is achievement to a detailed model and applying adaptive control method to an experimental case.