Research on the optimal configuration of integrated energy systems for parks with hydrogen storage devices

doi:10.3969/j.issn.2097-0706.2022.09.002

Abstract

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

CLC Number:

TK01

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