Day-Ahead Dispatch Optimization of an Integrated Hydrogen–Electric System Considering PEMEL/PEMFC Lifespan Degradation and Fuzzy-Weighted Dynamic Pricing

Cheng Zhang, Wei Fang (), Changjun Xie, Banghua Du (), Xiaolan Dai, Qicheng Zhang and Hui Wu
Additional contact information
Cheng Zhang: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Wei Fang: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Changjun Xie: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Banghua Du: Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, China
Xiaolan Dai: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Qicheng Zhang: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Hui Wu: School of Automation, Wuhan University of Technology, Wuhan 430070, China

Energies, 2025, vol. 18, issue 18, 1-31

Abstract: Integrated Hydrogen–Energy Systems (IHES) have attracted widespread attention; however, distributed energy sources such as photovoltaics (PV) and wind turbines (WT) within these systems exhibit significant uncertainty and intermittency, posing key challenges to scheduling complexity and system instability. As a core mechanism for the integrated operation of IHES, electricity price regulation can promote the absorption of renewable energy, optimize resource allocation, and enhance operational economy. Nevertheless, uncertainties in IHES hinder the formulation of accurate electricity prices, which easily lead to delays in scheduling responses and an increase in cumulative operating costs. To address these issues, this study develops lifespan models for Proton Exchange Membrane Electrolyzers (PEMELs) and Proton Exchange Membrane Fuel Cells (PEMFCs), constructs dynamic equations for the demand side and response side, and proposes a fuzzy-weighted dynamic pricing strategy. Simulation results show that, compared with fixed pricing, the proposed dynamic pricing strategy reduces economic indicators by an average of 15.3%, effectively alleviates energy imbalance, and optimizes the energy supply of components. Additionally, it reduces the lifespan degradation of PEMELs by 21.59% and increases the utilization rate of PEMFCs by 54.8%.

Keywords: integrated hydrogen–electricity system; day-ahead dispatch optimization; electricity prices; PEMEL/PEMFC lifespan degradation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/18/4945/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/18/4945/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:18:p:4945-:d:1751589

Access Statistics for this article

Energies is currently edited by Ms. Cassie Shen

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().