Hydraulic wind turbines are highly nonlinear and work severely under variable disturbances such as load on the generators and the wind speed. For further analysis control implementation on these types of systems a suitable linearized model is needed. Due to the disturbances, the system has a wide range of operating points. Therefore, linearized models on different operating regimes will be needed. Finding the best operating points, to linearize the nonlinear system at, can improve the accuracy of the linearization as well as the stability of the system. This paper propose a new automatic algorithm to indicate the suitable operating points and linearized models.
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