20.500.12556/RUL-169120 Real-time capable nonlinear distributed parameter observer considering two-phase flow in PEM fuel cells This paper presents a breakthrough in real-time capable nonlinear distributed parameter observation of spatially resolved intra-PEMFC states, which is achieved by developing an innovative PEMFC observer framework based on the Unscented Kalman Filter, novel method for determining physically motivated constraints for corrective actions, and real-time capable state-of-the-art spatially resolved physio-chemically consistent distributed parameter model considering two-phase flow. The proposed framework enables unprecedented real-time insight into the spatially distributed dynamics of water in liquid and gaseous states, as well as phase transformation, membrane water uptake, and into the impact of gas crossover effects on the mixed potential of PEMFCs just from lumped voltage, serving as an output, and current trace serving as an input. These advanced functionalities were formally confirmed by observability and comparative analysis using experimental results obtained from a segmented PEMFC and achieving very high R$^2$ values between 0.9976 to 0.9987, hence, confirming computationally-efficient beyond state-of-the-art control functionality. fuel cell proton exchange membrane fuel cell modelling two-phase flow nonlinear distributed observer diagnostics gorivna celica s protonsko izmenjevalno membrano modeliranje dvofazni tok nelinearni porazdeljeni opazovalec diagnostika true false true Angleški jezik Slovenski jezik Članek v reviji 2025-05-13 11:34:11 2025-05-13 11:34:15 2025-05-15 03:57:35 0000-00-00 00:00:00 2025 0 0 Str. 181–197 Vol. 134 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.9 1879-3487 10.1016/j.ijhydene.2025.04.321 235672835 RAZ_Kravos_Andraz_2025.pdf RAZ_Kravos_Andraz_2025.pdf 1 F1AF136B46F1B33E81F27F1FD2D7648C 0e1a1dbb72af88d75dcc0941dc9e9349fb45074c8f04aff7e394126a474ca8dc 67e695ab-2fdc-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210295 https://www.sciencedirect.com/science/article/pii/S0360319925020105 1 38ca9883-2fdc-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210294 Fakulteta za strojništvo 0 0 0