压缩空气抽水蓄能系统蓄能罐参数配置分析

鲍文龙; 冯陈; 蔡文方; 汪春; 杨丹; 汤络翔

压缩空气抽水蓄能系统蓄能罐参数配置分析

1. 国网浙江省电力有限公司电力科学研究院;
2. 河海大学能源与电气学院;
3. 杭州意能电力技术有限公司

基金项目:

国网浙江省电力有限公司科技项目资助(新型分布式压缩空气抽水蓄能储能系统研究5211DS23000K)

详细信息

作者简介:
鲍文龙(1989-),男,高级工程师,硕士,主要研究方向为压缩空气抽水蓄能系统建模与仿真。E-mail:787396373@qq.com

通讯作者:
冯陈(1992-),男,讲师,博士,主要研究方向为压缩空气抽水蓄能系统协调控制。E-mail:windycity@hhu.edu.cn

中图分类号: TV743
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出版历程
- 收稿日期: 2023-12-05

Parameter Configuration Analysis of Storage Tank in Pumped Hydro Combined with Compressed Air Energy Storage System

1. Zhejiang Electric Power Research Institute of Stare Grid Corporation;
2. College of Energy and Electrical Engineering,Hohai University;
3. HangzhouYineng Electric Technology Co.Ltd

摘要

摘要: 为获得压缩空气抽水蓄能（pumped hydro combined with compressed air energy storage system,PHCA）系统蓄能罐子系统在实际运行中具有较高能量密度与蓄能效率的参数配置，对系统中蓄能罐子系统进行热力学建模，分析了其压力配置、换热条件、流量配置对于蓄能罐子系统效率和能量密度的影响规律，结果表明：对于额定存储压力，总有与之对应的一个最优初始压力可以使得能量密度达到最大值，存储压力与最优初始压力的比值在2～3之间，对应压力配置的蓄能效率稳定在92%～93%之间；传热系数和存储时间在一定配置范围内会使系统陷入低效率区，在蓄能罐的设计中，应当评估出其换热能力避免低效率区；运行过程中，存储时间对于蓄能效率的影响较大，选择合适的水泵水轮机工作流量可以保证效率，在短存储时间时，采用的配置方法为高压缩、高膨胀流量，当存储时间变长后，应当同时减少压缩和膨胀流量。研究结果可为该系统的设计与运行提供理论依据。
- 压缩空气储能 /
- 抽水蓄能 /
- 蓄能罐 /
- 参数配置
Abstract: In order to obtain the parameter configuration of storage tank in pumped hydro combined with compressed air energy storage system（PHCA） with high energy density and energy storage efficiency in actual operation, in this paper, the thermodynamic modeling of the energy storage tank system in the system was carried out, and the influence laws of its pressure configuration, heat exchange conditions and flow configuration on the efficiency and energy density of the energy storage tank system were analyzed. The results showed that: For the rated storage pressure, there is always an optimal initial pressure corresponding to it, which can make the energy density reach the maximum.The ratio between the optimal initial pressure and the storage pressure is between 2 and 3, and the storage efficiency of the corresponding pressure configuration is stable between 92% and 93%. When the heat transfer coefficient and storage time are in a certain configuration range, the system will fall into the low efficiency zone. In the design of storage tank, the heat transfer capacity should be evaluated to avoid the low efficiency zone. During operation, the storage time has a great impact on the energy storage efficiency, and choosing the suitable working flow of pump turbine can ensure efficiency. When the storage time is short, the configuration method adopted is high compression flow and high expansion flow. When the storage time becomes longer, the compression and expansion flow should be reduced at the same time. The research results can provide a theoretical basis for the design and operation of the system.
- compressed air energy storage /
- pumped hydro storage /
- energy storage tank /
- parameter configuration

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