Study on the optimal configuration and operation strategy of the integrated energy system based on pumped hydraulic compressed air energy storage

SUN Hao; LI Ruixiong; GUO Zi'ao; DING Yibo; CAI Xuchao; SUN Xujie; WANG Huanran

doi:10.19799/j.cnki.2095-4239.2025.1070

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Study on the optimal configuration and operation strategy of the integrated energy system based on pumped hydraulic compressed air energy storage

Energy Storage System and Engineering | 更新时间：2026-07-01

- Study on the optimal configuration and operation strategy of the integrated energy system based on pumped hydraulic compressed air energy storage
- Energy Storage Science and Technology Vol. 15, Issue 4, Pages: 1346-1356(2026)
- 作者机构：
  
  1.西安交通大学能源与动力工程学院，陕西西安 710049
  2.西安交通大学未来技术学院，陕西西安 710049
- 作者简介：
- 基金信息：
- DOI：10.19799/j.cnki.2095-4239.2025.1070
  CLC： TK 02
- Received：01 December 2025，
  
  Revised：2025-12-19，
  
  Published：28 April 2026
- 稿件说明：
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孙昊, 李瑞雄, 郭子奥, 等. 基于抽水压缩空气储能的综合能源系统优化配置和运行策略研究[J]. 储能科学与技术, 2026, 15(4): 1346-1356.

SUN Hao, LI Ruixiong, GUO Zi'ao, et al. Study on the optimal configuration and operation strategy of the integrated energy system based on pumped hydraulic compressed air energy storage[J]. Energy Storage Science and Technology, 2026, 15(4): 1346-1356.
孙昊, 李瑞雄, 郭子奥, 等. 基于抽水压缩空气储能的综合能源系统优化配置和运行策略研究[J]. 储能科学与技术, 2026, 15(4): 1346-1356. DOI： 10.19799/j.cnki.2095-4239.2025.1070.

SUN Hao, LI Ruixiong, GUO Zi'ao, et al. Study on the optimal configuration and operation strategy of the integrated energy system based on pumped hydraulic compressed air energy storage[J]. Energy Storage Science and Technology, 2026, 15(4): 1346-1356. DOI： 10.19799/j.cnki.2095-4239.2025.1070.

摘要

为提高综合能源系统内能源利用效率，促进发电侧新能源技术应用，更好地满足用能需求，本工作构建了含有抽水压缩空气储能模块的综合能源系统模型，基于某地园区典型日运行数据，给出2种运行模式，分析综合能源系统的运行特性，并依据性能评价指标探究储能系统内各模块的容量配置对系统运行的影响。研究结果表明，在园区内配置含有抽水压缩空气储能模块的储能系统，能有效提高园区内能量自足率，峰放谷存模式下可达到最大值约98%，而在内部供电优先模式下可达到100%，实现完全自给自足，不向外部电网取电；然而，储能模块容量的增加会导致储能系统综合效率下降。以电池模块容量为300 kWh为例，峰放谷存模式下，储能系统综合效率为88.8%~68.6%，内部供电优先模式下，储能系统综合效率为88.9%~73.1%；在该典型日下，采用峰放谷存模式相较于内部供电优先模式，能获得更高的盈利水平，前者最大盈利为4817.51元，后者则为4407.47元。本研究旨在为综合能源系统建设提供一条新的思路，为抽水压缩空气储能技术的应用和配置提供新的方法。

Abstract

To enhance energy utilization efficiency within an integrated energy system (IES)

promote the application of new energy technologies on the power generation side

and better meet energy demand

an IES model incorporating a pumped hydraulic compressed air energy storage (PH-CAES) module was developed. Based on typical daily operation data from an industrial park

two operation modes were proposed

and the operational characteristics of the IES were analyzed. In addition

the influence of capacity configuration of each module within the energy storage system on overall system performance was investigated using performance evaluation indicators. The results show that incorporating a PH-CAES-based energy storage system in the industrial park can effectively improve the park's energy self-sufficiency rate. Under the peak-load shifting and valley charging mode

the maximum self-sufficiency rate can reach approximately 98%

while under the internal power supply priority mode

it can reach 100%

achieving complete self-sufficiency without relying on the external grid. However

increasing the capacity of energy storage modules leads to a reduction in the overall efficiency of the energy storage system. Taking a battery module capacity of 300 kWh as an example

the overall efficiency of the energy storage system under the peak-load shifting and valley charging mode ranges from 88.8%—68.6%

while under the internal power supply priority mode

it ranges from 88.9%—73.1%. For the selected typical day

the peak-load shifting and valley charging mode yields higher economic benefits than the internal power supply priority mode. The maximum profit under the former mode is 4817.51 yuan

whereas that under the latter mode is 4407.47 yuan. This study provides a new approach for the construction of integrated energy systems and offers a reference for the application and capacity configuration of PH-CAES technology.

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references

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