基于时序模型的储能功率时长评估方法

段乃欣; 吕金历; 张小奇; 葛鹏江; 汪莹; 文章

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

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (12) : 425-432. DOI: 10.19912/j.0254-0096.tynxb.2022-1317

基于时序模型的储能功率时长评估方法

段乃欣, 吕金历, 张小奇, 葛鹏江, 汪莹, 文章

作者信息 +

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

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

Author information +

文章历史 +

摘要

高占比新能源系统中,储能对新能源消纳和电力保供至关重要。为此,提出一种评估方法。首先,基于净负荷曲线分析新能源受阻电力与系统缺口电力产生的机理,从电力平衡和新能源消纳两个方面研究储能替代火电开机的必要性。其次,通过新能源日弃电量持续曲线计算储能容量极小值;通过新能源受阻电力持续曲线计算最小储能功率,并结合系统实际合理需求得到等效储能容量极大值。然后,通过储能容量极小值和等效储能容量极大值提出储能功率时长近似曲线,并评估曲线的适用范围。最后,针对实际算例进行仿真验证,结果表明所提方法的有效性。

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.

导出引用

段乃欣, 吕金历, 张小奇, 葛鹏江, 汪莹, 文章. 基于时序模型的储能功率时长评估方法[J]. 太阳能学报. 2023, 44(12): 425-432 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1317

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

中图分类号： TK513.5

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