Coordinated planning of long- and short-duration energy storage for daily energy and intra-day power in 100% renewable energy export systems

HUO Ziyu; LU Zongxiang; QIAO Ying; WU Linlin

doi:10.19783/j.cnki.pspc.251349

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Coordinated planning of long- and short-duration energy storage for daily energy and intra-day power in 100% renewable energy export systems

更新时间：2026-06-18

- Coordinated planning of long- and short-duration energy storage for daily energy and intra-day power in 100% renewable energy export systems
- Power System Protection and Control Vol. 54, Issue 11, (2026)
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- DOI：10.19783/j.cnki.pspc.251349
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- Published：2026
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HUO Ziyu, LU Zongxiang, QIAO Ying, et al. Coordinated planning of long- and short-duration energy storage for daily energy and intra-day power in 100% renewable energy export systems[J]. Power System Protection and Control, 2026, 54(11).
DOI：

HUO Ziyu, LU Zongxiang, QIAO Ying, et al. Coordinated planning of long- and short-duration energy storage for daily energy and intra-day power in 100% renewable energy export systems[J]. Power System Protection and Control, 2026, 54(11). DOI： 10.19783/j.cnki.pspc.251349.

摘要

为解决 100% 新能源外送系统灵活性不足的问题，提出一种日电量日内功率两阶段长短时储能协同规划方法，实现系统调节能力与新能源出力多时间尺度波动特性的有效匹配。首先，在日时间尺度基于新能源日发电量配置长时储能、氢负荷功率及其容量。然后，在日内基于修正后的新能源出力波动典型场景配置短时储能容量，得到长短时储能协同规划配置方案。进一步量化源荷双侧新能源额外并网成本，利用运行模拟检验方法全面有效评估规划方案的经济性与消纳效率。最后，对张家口汇入张雄特高压站的 100% 新能源基地数据进行算例分析，表明所提方法有效兼顾新能源消纳和系统经济性，在不同典型场景下展现出良好的适应性和稳定性，能够满足不同规划需求，具备更强的灵活性。

Abstract

To address the insufficient flexibility of 100% renewable energy export systems

a two-stage coordinated planning approach is proposed in this paper for long- and short-duration energy storage based on daily energy and intra-day power requirements. The method enables effective matching between system regulation capability and the multi-timescale variability of renewable generation. In the first stage

at the daily timescale

long-duration energy storage and hydrogen load power and capacity are configured based on the daily renewable energy generation. In the second stage

at the intra-day timescale

short-duration energy storage capacity is configured using modified typical scenarios of renewable output fluctuations

resulting in a coordinated planning scheme for both long- and short-duration storage. Furthermore

the additional grid-integration costs of renewable energy are quantified from both the supply and demand sides. Operational simulations are conducted to comprehensively and effectively evaluate the economic performance and renewable energy accommodation efficiency of the proposed planning scheme. Finally

case studies are conducted using data from a 100% renewable energy base connected to the Zhangxiong UHV substation in Zhangjiakou. The results indicate that the proposed approach effectively balances renewable accommodation and system economics. It exhibits strong adaptability and stability across different typical scenarios

meeting diverse planning requirements with enhanced flexibility.

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references

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