Abstract
As the penetration of wind turbines into the power grid increases, greater emphasis is placed on designing advanced control approaches for optimum power generation. This paper proposes a novel control scheme for a DFIG-driven variable speed wind energy system. The approach aims at reaching optimum performance in terms of power generation at the point of common coupling. The control scheme is derived based on the feedback linearization technique, allowing both decoupling and linearization of the nonlinear multivariable system. The proposed approach is based on the theory of feedback linearization and is aimed at achieving optimum power generation at any wind speed within the operating range. Application of the proposed approach to a DFIG-based variable speed wind turbine has led to optimum operations at various speed ranges. Simplicity and ease of implementation of the overall scheme along with its fast dynamic response in addition to the optimum power production are the main positive features of the proposed approach.
Published Version
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