International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 92, P. 1 - 13
Published: Oct. 22, 2024
Language: Английский
International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 92, P. 1 - 13
Published: Oct. 22, 2024
Language: Английский
Energies, Journal Year: 2025, Volume and Issue: 18(2), P. 247 - 247
Published: Jan. 8, 2025
To address the challenges faced by fuel cell hybrid electric tractors (FCHETs) equipped with a battery and supercapacitor, including complex coordination of multiple energy sources, low power allocation efficiency, unclear optimal consumption, this paper proposes two management strategies (EMSs): one based on hierarchical instantaneous optimization (HIO) other multi-dimensional dynamic programming final state constraints (MDDP-FSC). The proposed HIO-based EMS utilizes low-pass filter fuzzy logic correction in its upper-level strategy to manage high-frequency using supercapacitor. lower-level optimizes efficiency allocating low-frequency stable principle minimizing equivalent consumption. Validation hardware-in-the-loop (HIL) simulation platform comparative analysis demonstrate that effectively improves transient operating conditions cell, extending their lifespan enhancing system efficiency. Furthermore, achieves 95.20% level hydrogen consumption compared MDDP-FSC-based EMS, validating superiority. avoids extensive debugging efforts required achieve equilibrium, while providing valuable insights into global potential multi-energy source FCHETs.
Language: Английский
Citations
2Journal of Power Sources, Journal Year: 2025, Volume and Issue: 634, P. 236500 - 236500
Published: Feb. 14, 2025
Language: Английский
Citations
1Journal of Power Sources, Journal Year: 2025, Volume and Issue: 640, P. 236769 - 236769
Published: March 14, 2025
Language: Английский
Citations
1Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 122386 - 122386
Published: Jan. 1, 2025
Language: Английский
Citations
0Applied Energy, Journal Year: 2025, Volume and Issue: 388, P. 125702 - 125702
Published: March 19, 2025
Language: Английский
Citations
0Advanced Science, Journal Year: 2025, Volume and Issue: unknown
Published: April 25, 2025
Abstract The dynamic performance of proton exchange membrane fuel cells (PEMFCs) under high current density (HCD) rapid loading is crucial for commercialization. This study introduces an advanced temperature difference (TD) design featuring in‐plane gradient. By reconstructing cooling channels, optimal distribution across the upstream, midstream, and downstream regions achieves balanced water‐gas‐heat conditions, enhancing response PEMFCs HCD loading. Various TD designs are investigated a broad humidity range, innovatively focusing on key moments involving load initiation, transient voltage minimum (TVM), steady‐state (SSV). Comprehensive evaluations encompassing energy consumption assess enhancements, while electrochemical impedance spectroscopy (EIS) local monitoring further elucidate underlying mechanisms. Results show positive (PTD) enhances hydration upstream mitigates flooding low‐humidity conditions. Conversely, negative (NTD) tends to dehydration downstream. At RH = 35%, PTD increases TVM by 18.2%, decreases undershoot (VU) 12.5%, raises SSV 5.67%, electricity output 7%. As increases, effect gradually weakens, though it still benefits uniformity.
Language: Английский
Citations
0Energy, Journal Year: 2024, Volume and Issue: unknown, P. 133218 - 133218
Published: Sept. 1, 2024
Language: Английский
Citations
2International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 92, P. 1 - 13
Published: Oct. 22, 2024
Language: Английский
Citations
1