Optimal Configuration Method for Electric-thermo-hydrogen System Considering Safety Risks

doi:10.11930/j.issn.1004-9649.202311031

Abstract

Abstract:

The electric-thermo-hydrogen system (ETHS), a highly efficient and integrated energy supply system, has attracted widespread attentions. However, the explosive characteristics of hydrogen poses unique safety challenges. To ensure the safe and economical operation of ETHS, this paper proposes an optimal configuration method considering safety risks. Firstly, the safety of the ETHS is analyzed, and the working range and temperature of the electrolysis cells and fuel cell are constrained. Then, the pressure of the hydrogen storage tank is more accurately constrained using the non-ideal gas pressure formula of hydrogen, and the safety risk of the hydrogen storage tank is quantified using the TNT equivalent method. Furthermore, the safety risk coefficient is used to convert the safety risk of the hydrogen storage tank into the objective function. The optimal configuration model of the ETHS is then established with the system investment cost, operation cost, and safety risk as optimization objectives, and the tabu chaotic quantum particle swarm optimization (TCQPSO) algorithm is employed to solve the model. The case study results demonstrate that with consideration of safety risks, the economy of the system can be improved through reasonable capacity design while effectively reducing system safety risks, which verifies the effectiveness of the optimization design method proposed in this paper.

Key words: electric-thermo hydrogen system, hydrogen explosion limit constraint, safety of hydrogen storage tank, risk quantification, tabu chaotic quantum particle swarm optimization algorithm

Chouwei NI, Yang CHEN, Xuesong ZHANG, Da LIN, Kaijian DU, Jian CHEN. Optimal Configuration Method for Electric-thermo-hydrogen System Considering Safety Risks[J]. Electric Power, 2024, 57(9): 124-135.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202311031

https://www.electricpower.com.cn/EN/Y2024/V57/I9/124

Figures/Tables 16

References 25

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时段		价格/(元·(kW·h)^–1)
00:00—06:00、23:00—24:00		0.45
07:00—11:00、18:00—22:00		1.21
12:00—17:00		0.73

时段		价格/(元·(kW·h)^–1)
00:00—06:00、23:00—24:00		0.45
07:00—11:00、18:00—22:00		1.21
12:00—17:00		0.73

设备参数	AEC	PEMEC
制氢效率	0.65	0.70
温度下限/℃	60	50
温度上限/℃	95	80
启停成本/元	10/1	8/1
出力下限/%	25	5
出力上限/%	100	100
爬坡上限/(%·h^–1)	50	95
开机次数上限	1	2
关机次数上限	1	2
启动延时/h	1	0

设备参数	AEC	PEMEC
制氢效率	0.65	0.70
温度下限/℃	60	50
温度上限/℃	95	80
启停成本/元	10/1	8/1
出力下限/%	25	5
出力上限/%	100	100
爬坡上限/(%·h^–1)	50	95
开机次数上限	1	2
关机次数上限	1	2
启动延时/h	1	0

设备	投资成本	容量上限	容量下限	年限/年
AEC	2400元/kW	3 MW	1 MW	10
PEMEC	4000元/kW	3 MW	1 MW	8
氢燃料电池	4200元/kW	3 MW	1 MW	5
电锅炉	1260元/kW	3 MW	0 MW	15
蓄电池	1071元/kW	3 MW	0 MW	10
储热罐	56元/kW	10 MW	1 MW	25
储氢罐	6500元/kg	1000 kg	100 kg	35