Target Power Determination for Real-time Stabilization of Grid-Connected Offshore Wind Power Fluctuation

Abstract

This study mainly studies the calculation method of target power in the real-time stabilization strategy of power generation fluctuation of offshore wind farms so that the active power of wind power after stabilization meets the power fluctuation rate limit of two different time scales in the grid connection requirements. Among them, the wind power stabilization effect is mainly determined by the filter coefficient in the filter algorithm, and the time scale of wind power regulation is 1 second, which limits the play of the intelligent algorithm. This paper proposes a method to adaptively adjust the filter coefficient through updating the wind power generation fluctuation limit in a 1-minute time scale for different time scales. The proposed solution is evaluated through simulation experiments using MATLAB through a comparison with the low-pass filter algorithm. The performance results confirmed that the low-pass filter algorithm with adaptive adjustment of filter coefficient proposed in this work performs well in both the wind power stabilization effect and the reduction of energy storage consumption.