OPTIMAL CONTROL STRATEGY FOR HYBRID ENERGY STORAGE ZONING CONSIDERING COMPENSATING WIND POWER FORECASTING ERROR AND SMOOTHING FLUCTUATION

Zhang Qi; Xie Lirong; Wang Wei; Wang Hejia; Liu Xin; Bao Hongyin

doi:10.19912/j.0254-0096.tynxb.2022-0468

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (7) : 7-13. DOI: 10.19912/j.0254-0096.tynxb.2022-0468

OPTIMAL CONTROL STRATEGY FOR HYBRID ENERGY STORAGE ZONING CONSIDERING COMPENSATING WIND POWER FORECASTING ERROR AND SMOOTHING FLUCTUATION

Zhang Qi¹, Xie Lirong¹, Wang Wei¹, Wang Hejia¹, Liu Xin¹, Bao Hongyin²

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Abstract

Under the background of ‘dual carbon’, based on the comprehensive target domain of wind power forecasting error and smoothing fluctuation, a control strategy is proposed to compensate both the prediction error and smoothing fluctuation of wind power. Firstly, the allowable range of prediction error and wind power fluctuation is determined more strictly than that of the national standard, and the comprehensive target area is established. The target domain is divided into internal and external parts, using improved complete ensemble empirical mode decomposition with adaptive noise （ICEEMDAN） and technique for order preference by similarity to an ideal solution （TOPSIS）to calculate the scope of super capacitor and battery, which bear the part with the larger change rate and the smooth part respectively. And then, the hybrid energy storage batteries acting on the target domain are divided into four groups, and the states are switched according to the charge/discharge power. Finally, a wind farm in Xinjiang was taken as an example for simulation analysis, and a comprehensive comparison of various decomposition methods and energy storage configuration methods was made to prove the effectiveness of the proposed strategy.

Key words

wind power / prediction error / power fluctuation / comprehensive target area / ICEEMDAN / TOPSIS / power distribution / grouping batteries

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Zhang Qi, Xie Lirong, Wang Wei, Wang Hejia, Liu Xin, Bao Hongyin. OPTIMAL CONTROL STRATEGY FOR HYBRID ENERGY STORAGE ZONING CONSIDERING COMPENSATING WIND POWER FORECASTING ERROR AND SMOOTHING FLUCTUATION[J]. Acta Energiae Solaris Sinica. 2023, 44(7): 7-13 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0468

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