含储氢结构的园区综合能源系统优化配置研究

doi:10.3969/j.issn.2097-0706.2022.09.002

摘要/Abstract

摘要：

氢能能量密度高,具有良好的储能能力,将储氢应用于园区综合能源系统可有效提高其经济性。为此,针对含储氢结构的园区综合能源系统进行了优化配置研究,首先以储氢替代储电的形式构建了含储氢结构的园区综合能源系统,以系统全寿命周期等年值为容量配置层目标函数,系统年运行成本为优化运行层目标函数,在能量平衡和设备出力等约束条件下,建立了相应的优化配置模型,并采用粒子群算法与CPLEX求解器相结合的双层优化算法进行求解,最后对园区算例的设备容量、运行方式、系统性能和经济性进行分析。分析表明,建立的含储氢结构的园区综合能源系统能实时可靠地满足用户能源需求,且相较于含储电结构的园区综合能源系统,两者性能大致相同,但前者经济效果更明显,进而验证了所提方法的可行性。

关键词: 储氢, 园区综合能源系统, 优化配置模型, 双层优化算法, 算例分析, 可再生能源

Abstract:

Since hydrogen energy is of high energy density and good energy storage capacity,its application to an integrated energy system for an industrial park can effectively improve the economy of the system.A study on the optimal configuration of integrated energy systems for parks with hydrogen storage devices is made.Firstly,electricity storage devices for the system are replaces by hydrogen storage devices.Then,the system takes the uniform annual value of its whole-life-cycle cost as the objective function of the capacity configuration layer,and its annual operating cost as the objective function of the optimal operating layer.Under the constraints on energy balance and equipment outputs,the corresponding model of the optimal configuration is established.The bi-level optimization algorithm that integrates particle swarm algorithm and CPLEX solver is used to solve the model.Finally,the equipment capacities,operation mode,system performance and economy of the power system for an industrial park are analyzed.The analysis results shows that the scheme of integrated energy systems for parks with hydrogen storage systems can meet users' real-time energy demand reliably.Comparing the power system with hydrogen storage devices and the one with electricity storage devices,their performances are roughly the same,but the former one is obviously more economic,which proves the practicability of the suggested method.

Key words: hydrogen storage, integrated energy system for parks, optimal configuration model, bi-level optimization algorithm, case study, renewable energy

中图分类号:

TK01

钟鹏元, 杨晓宏, 寇建玉. 含储氢结构的园区综合能源系统优化配置研究[J]. 综合智慧能源, 2022, 44(9): 11-19.

ZHONG Pengyuan, YANG Xiaohong, KOU Jianyu. Research on the optimal configuration of integrated energy systems for parks with hydrogen storage devices[J]. Integrated Intelligent Energy, 2022, 44(9): 11-19.

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参数	HST	TES	EES
单位购置成本/元	300	320	1 800
单位替换成本/元	280	280	1 500
单位运维成本/元	0.002 0	0.003 4	0.004 0
输入效率	0.97	0.91	0.95
输出效率	0.97	0.91	0.95
功率下限	0.00	0.00	0.00
功率上限	0.20 S_HST	0.20 S_TES	0.20 S_EES
储能上限	0.95 S_HST	1.00 S_TES	1.00 S_EES
储能下限	0.20 S_HST	0.10 S_TES	0.10 S_EES
自损耗率	0.010	0.010	0.001

设备	单位购置成本/元	单位替换成本/元	单位运维成本/元	效率/%
PV	4 000	3 500	0.010	—
WT	6 000	5 500	0.006	—
EL	6 000	4 800	0.020	0.60
HFC	2 500	2 000	0.022	0.60/0.25
EB	750	600	0.013	0.91
ER	540	420	0.015	3.00
AR	750	700	0.014	1.20

时段	时间划分	电价/[元·(kW·h)^-1]
谷时段	00：00—04：00 10：00—15：00	0.487 4
平时段	04：00—10：00 15：00—17：00 21：00—24：00	0.502 5
高峰时段	17：00—21：00	0.743 7

设备	单位	场景1	场景2	场景3	场景4
PV	MW	89.1	59.7	91.5	59.7
WT	MW	372.0	388.0	368.0	388.0
EL	MW	4.9	—	4.1	—
HFC	MW	15.6	—	16.0	—
HST	kg	3 898.0	—	4 001.0	—
EES	MW·h	—	67.8	—	67.8
TES	MW·h	179.9	180.0	180.0	180.0
EB	MW	159.2	127.4	178.6	127.4
ER	MW	78.6	78.6	78.6	78.6
AR	MW	0.0	0.0	0.0	0.0

场景	综合能源利用率	综合能源自给率	弃风弃光率
1	105.85	92.51	8.00
2	106.43	92.89	7.99
3	106.21	92.35	7.91
4	106.46	92.92	7.99