Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization System
The integrated hydrogen energy utilization system (IHEUS) exhibits great potential for microgrid applications. However, its practical application faces significant challenges mainly due to the low energy conversion efficiency and rapid aging of the electrolyzers and fuel cells, especially when handl...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/34/e3sconf_fcee2025_01002.pdf |
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| author | Zhu Shihao Hu Hongming Du Banghua Xie Changjun Zhu Wenchao |
| author_facet | Zhu Shihao Hu Hongming Du Banghua Xie Changjun Zhu Wenchao |
| author_sort | Zhu Shihao |
| collection | DOAJ |
| description | The integrated hydrogen energy utilization system (IHEUS) exhibits great potential for microgrid applications. However, its practical application faces significant challenges mainly due to the low energy conversion efficiency and rapid aging of the electrolyzers and fuel cells, especially when handling highly fluctuating power flows. To this end, this study proposes a multi-objective optimal dispatch scheme for off-grid IHEUS operations, where waste heat recovery and life cycle cost are taken into consideration to address the above problems. We first establish a first-principle model that describes the electric-hydrogen-heat output characteristics of the system, where the waste heat recovery and utilization systems have been focused. By correlating the aging behaviors and lifetime to voltage degradation, a life-cycle operational cost function is derived for a multi-objective optimization (MOO) model. In this MOO model, we adopt comprehensive energy efficiency and energy supply loss probability as the performance evaluation and optimization criteria so as to improve energy efficiency and supply stability, and the designed MOO problem is solved and ranked by a proposed NSGA-III joint entropy-weighted TOPSIS strategy. Comprehensive comparative studies exhibit that this proposed NSGA-III joint entropy-weighted TOPSIS strategy can effectively determine the optimal operation dispatch scheme. Consequently, a 46.13% reduction in operating costs can be achieved at the same the comprehensive energy efficiency and ESLP. |
| format | Article |
| id | doaj-art-142864ec1ba64e07aa04704664fa4b47 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-142864ec1ba64e07aa04704664fa4b472025-08-20T03:24:48ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016340100210.1051/e3sconf/202563401002e3sconf_fcee2025_01002Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization SystemZhu Shihao0Hu Hongming1Du Banghua2Xie Changjun3Zhu Wenchao4School of Automation, Wuhan University of TechnologySchool of Automation, Wuhan University of TechnologyHubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of TechnologySchool of Automation, Wuhan University of TechnologyState Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingThe integrated hydrogen energy utilization system (IHEUS) exhibits great potential for microgrid applications. However, its practical application faces significant challenges mainly due to the low energy conversion efficiency and rapid aging of the electrolyzers and fuel cells, especially when handling highly fluctuating power flows. To this end, this study proposes a multi-objective optimal dispatch scheme for off-grid IHEUS operations, where waste heat recovery and life cycle cost are taken into consideration to address the above problems. We first establish a first-principle model that describes the electric-hydrogen-heat output characteristics of the system, where the waste heat recovery and utilization systems have been focused. By correlating the aging behaviors and lifetime to voltage degradation, a life-cycle operational cost function is derived for a multi-objective optimization (MOO) model. In this MOO model, we adopt comprehensive energy efficiency and energy supply loss probability as the performance evaluation and optimization criteria so as to improve energy efficiency and supply stability, and the designed MOO problem is solved and ranked by a proposed NSGA-III joint entropy-weighted TOPSIS strategy. Comprehensive comparative studies exhibit that this proposed NSGA-III joint entropy-weighted TOPSIS strategy can effectively determine the optimal operation dispatch scheme. Consequently, a 46.13% reduction in operating costs can be achieved at the same the comprehensive energy efficiency and ESLP.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/34/e3sconf_fcee2025_01002.pdf |
| spellingShingle | Zhu Shihao Hu Hongming Du Banghua Xie Changjun Zhu Wenchao Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization System E3S Web of Conferences |
| title | Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization System |
| title_full | Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization System |
| title_fullStr | Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization System |
| title_full_unstemmed | Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization System |
| title_short | Multi-objective Optimal Dispatch of Off-grid Integrated Hydrogen Energy Utilization System |
| title_sort | multi objective optimal dispatch of off grid integrated hydrogen energy utilization system |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/34/e3sconf_fcee2025_01002.pdf |
| work_keys_str_mv | AT zhushihao multiobjectiveoptimaldispatchofoffgridintegratedhydrogenenergyutilizationsystem AT huhongming multiobjectiveoptimaldispatchofoffgridintegratedhydrogenenergyutilizationsystem AT dubanghua multiobjectiveoptimaldispatchofoffgridintegratedhydrogenenergyutilizationsystem AT xiechangjun multiobjectiveoptimaldispatchofoffgridintegratedhydrogenenergyutilizationsystem AT zhuwenchao multiobjectiveoptimaldispatchofoffgridintegratedhydrogenenergyutilizationsystem |