计及热负荷柔性的户用氢能系统运行优化研究

袁铁江; 曾婧; 张明扬

doi:10.19912/j.0254-0096.tynxb.2024-0007

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (7) : 29-40. DOI: 10.19912/j.0254-0096.tynxb.2024-0007

“新型电力系统中光储规划配置及优化运行技术”专题

计及热负荷柔性的户用氢能系统运行优化研究

袁铁江, 曾婧, 张明扬

作者信息 +

OPTIMIZATION STUDY ON OPERATION OF HOUSEHOLD HYDROGEN ENERGY SYSTEM CONSIDERING THERMAL LOAD FLEXIBILITY

Yuan Tiejiang, Zeng Jing, Zhang Mingyang

Author information +

文章历史 +

摘要

针对风电/光伏出力的随机性和间歇性给户用氢能系统热电联供可靠性带来的挑战,提出基于热负荷柔性松弛运行约束的户用氢能系统热电联供优化策略。首先,搭建包含不同模块的户用氢能系统基础架构,并详细说明该系统的运行原理;其次,建立系统中关键环节的数学模型,确定电解槽平均氢/热比和燃料电池在不同温度下电/热比的范围;然后,为了兼顾用户的舒适度和热负荷的灵活性,根据热感觉平均标度预测指标对户用氢能系统的热负荷需求进行调整;最后,综合考虑储氢罐的容量限制、氢能设备的电/热功率和用户侧柔性热能需求等约束条件,以总投资成本最少和新能源弃电率最低为目标,建立户用氢能系统优化运行模型。仿真结果表明：引入柔性热负荷进行运行调节时,不仅增强了可再生能源的消纳能力,还显著降低了系统的运行成本。

Abstract

Aiming at the challenge of the random and intermittent characteristics of wind power/photovoltaic output to the reliability of combined heat and power supply of household hydrogen energy system, an optimization strategy of combined heat and power supply of household hydrogen energy system based on flexible relaxation operation constraint of heat load is proposed. Firstly, the infrastructure of household hydrogen energy system including different modules is built, and the operation principle of the system is described in detail. Secondly, the mathematical model of the key links in the system is established, and the range of the average hydrogen/heat ratio of the electrolytic cell and the electric/heat ratio of the fuel cell at different temperatures are determined. Then, in order to take consider the user's comfort and the flexibility of the heat load, the heat load demand of the household hydrogen energy system is adjusted according to the thermal sensation average scale prediction index. Finally, considering the capacity limitation of hydrogen storage tank, the electric/thermal power of hydrogen energy equipment and the flexible thermal energy demand of user side, the optimal operation model of household hydrogen energy system is established with the goal of minimizing the total investment cost and the abandonment rate of new energy. The simulation results show that the introduction of flexible heat load for operation adjustment not only enhances the consumption capacity of renewable energy, but also significantly reduces the operating cost of the system.

导出引用

袁铁江, 曾婧, 张明扬. 计及热负荷柔性的户用氢能系统运行优化研究[J]. 太阳能学报. 2024, 45(7): 29-40 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0007

Yuan Tiejiang, Zeng Jing, Zhang Mingyang. OPTIMIZATION STUDY ON OPERATION OF HOUSEHOLD HYDROGEN ENERGY SYSTEM CONSIDERING THERMAL LOAD FLEXIBILITY[J]. Acta Energiae Solaris Sinica. 2024, 45(7): 29-40 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0007

中图分类号： TK91

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