This book focuses on water content estimation and control of the PEM fuel cell stack and the individual cell in vehicle. Firstly, the mathematical connection between polarization curve and equivalent circuit model proves importance of MEA and its feasibility to study water content. Optimizing structure of MEA realizes the internal water content recirculation of a fuel cell and improves its performance under middle or lower current density. The influence of water content on performance of MEA is quantified, and variation of equivalent circuit model is an excellent indicator of water content. Secondly, the comprehensive online AC impedance measurement method is put forward, including current excitation method, weak voltage and current signal processing method, and method for analyzing measurement error, and experiment validates measurement accuracy. The high-frequency impedance and statistical characteristic are proposed as indicator of water content. Finally, the dynamic model of theair supply system of a fuel cell engine is established and the closed-loop control of the air supply system and the water content estimation are decoupled. The experiment on a fuel cell system validates the proposed method for searching optimized operating conditions and the water management strategy.
| ISBN: | 9789811688164 |
| Publication date: | 19th January 2023 |
| Author: | Po Hong |
| Publisher: | Springer Verlag, Singapore |
| Format: | Paperback |
| Pagination: | 149 pages |
| Series: | Springer Theses |
| Genres: |
Engineering applications of electronic, magnetic, optical materials Electrochemistry and magnetochemistry Electrical engineering Transport technology and trades |
This book focuses on water content estimation and control of the PEM fuel cell stack and the individual cell in vehicle. Firstly, the mathematical connection between polarization curve and equivalent circuit model proves importance of MEA and its feasibility to study water content. Optimizing structure of MEA realizes the internal water content recirculation of a fuel cell and improves its performance under middle or lower current density. The influence of water content on performance of MEA is quantified, and variation of equivalent circuit model is an excellent indicator of water content. Secondly, the comprehensive online AC impedance measurement method is put forward, including current excitation method, weak voltage and current signal processing method, and method for analyzing measurement error, and experiment validates measurement accuracy. The high-frequency impedance and statistical characteristic are proposed as indicator of water content. Finally, the dynamic model of theair supply system of a fuel cell engine is established and the closed-loop control of the air supply system and the water content estimation are decoupled. The experiment on a fuel cell system validates the proposed method for searching optimized operating conditions and the water management strategy.
Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle features in the following genres: Engineering applications of electronic, magnetic, optical materials, Electrochemistry and magnetochemistry, Electrical engineering, Transport technology and trades
Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle is available in Paperback
Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle was written by Po Hong and published by Springer Verlag, Singapore
Water Content Estimation and Control of PEM Fuel Cell Stack and the Individual Cell in Vehicle has 149 pages
Yes it is part of Springer Theses series
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