This paper analyses the performance of maximum power point tracking in a grid connected permanent magnet synchronous generator-based wind energy conversion system using a linear relationship between optimum speed and wind velocity to increase the speed of the controller response. Furthermore, the proposed large step forward and the small step reverse initial tracking improves the accuracy of the existing large step perturb and observe algorithm and is also capable of tracking maximum power for rapidly varying wind conditions. The system consists of back-to-back sinusoidal pulse-width modulation converters. The generator side converter is used to track the maximum wind power using the proposed method through field oriented control. The role of the grid side inverter is to transfer the generated wind power from DC-link to the grid and regulate the DC-link voltage. Moreover, this paper examines the performance of the grid side inverter in grid synchronisation with a non-linear inductive load. Moreover, it analyses the concept of the proposed method using the theoretical aspects. A model for the complete system is developed in MATLAB/ SIMULINK and the performance of the proposed control scheme is validated through simulations.
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