EVALUATION METHOD OF ENERGY STORAGE POWER DURATION BASED ON TIME SERIES MODEL

Duan Naixin; Lyu Jinli; Zhang Xiaoqi; Ge Pengjiang; Wang Ying; Wen Zhang

doi:10.19912/j.0254-0096.tynxb.2022-1317

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (12) : 425-432. DOI: 10.19912/j.0254-0096.tynxb.2022-1317

EVALUATION METHOD OF ENERGY STORAGE POWER DURATION BASED ON TIME SERIES MODEL

Duan Naixin, Lyu Jinli, Zhang Xiaoqi, Ge Pengjiang, Wang Ying, Wen Zhang

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Abstract

Energy storage is crucial for new energy consumption and power preservation in high-percentage new energy systems. For this reason, an evaluation method is proposed. Firstly, the generation mechanism of new energy blocked power and system gap power is analyzed based on the net load curve. The necessity of replacing thermal power with energy storage is studied from two aspects of power balance and new energy consumption. Secondly, the minimum value of energy storage capacity is calculated by the new energy daily abandoned power duration curve, the minimum energy storage power is calculated by the new energy blocked power duration curve, and the maximum value of equivalent energy storage capacity is obtained by combining with the actual reasonable demand of the system. Then, we propose an approximate curve of energy storage power duration by the minimal value of energy storage capacity and the maximum value of equivalent energy storage capacity, and evaluate the applicability range of the curve. Finally, simulations are carried out to verify the effectiveness of the proposed method for practical cases.

Key words

new energy / energy storage / power and energy / time-series production simulation / generation expansion planning

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Duan Naixin, Lyu Jinli, Zhang Xiaoqi, Ge Pengjiang, Wang Ying, Wen Zhang. EVALUATION METHOD OF ENERGY STORAGE POWER DURATION BASED ON TIME SERIES MODEL[J]. Acta Energiae Solaris Sinica. 2023, 44(12): 425-432 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1317

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