Wind speed correction method and device based on time sequence offset correction
The invention relates to the technical field of new energy wind power, and particularly provides a wind speed correction method and device based on time sequence offset correction, and the method comprises the steps: carrying out the fast Fourier transformation of a time sequence error of a predicte...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of new energy wind power, and particularly provides a wind speed correction method and device based on time sequence offset correction, and the method comprises the steps: carrying out the fast Fourier transformation of a time sequence error of a predicted wind speed in a current time period, and obtaining a frequency domain signal corresponding to the time sequence error; and correcting the predicted wind speed at the next moment based on the frequency spectrum of the frequency domain signal. The technical scheme provided by the invention aims to eliminate or reduce the possible phase error in the prediction data, thereby improving the prediction precision of the time in the process of rising and falling by strong wind.
本发明涉及新能源风电技术领域,具体提供了一种基于时序偏移校正的风速订正方法及装置,包括:对当前时段预测风速的时序误差进行快速傅立叶变换,得到所述时序误差对应的频域信号;基于所述频域信号的频谱对下一时刻预测风速进行订正。本发明提供的技术方案旨在消除或减小预测数据中可能存在的相位误差,从而提升大风抬升及下降过程时间的预报精度。 |
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