Investigation of Power Generation Reduction Patterns Due to Wind Speed Fluctuations

Currently, the introduction of renewable energy sources is being promoted to solve the problems of environmental pollution and global warming. In particular, the number of wind energy conversion systems installed has increased significantly in recent years. The introduction of conversion systems is expected to expand in the future. Wind power generation systems generally use Maximum Power Point Tracking (MPPT) control. However, MPPT control takes time to change the rotational speed due to the moment of inertia of the wind turbine. The output power decreases as the time to change of the rotational speed increases. Therefore, Deceleration Suppressing control as advantages over MPPT control. The Deceleration Suppressing control maintains a higher rotational speed. As a result, the deceleration suppressing control increases the amount of generated power by giving priority to high wind speeds for power conversion. However, it is not known, how high the rotational speed should be maintained. This paper examines the relationship between the factors of wind turbines and the average power reduction ratio in the numerical simulation.