Water content estimation and control of PEM fuel cell stack and the individual cell in vehicle / Po Hong.
2022
TK2933.P76 H66 2022
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Details
Title
Water content estimation and control of PEM fuel cell stack and the individual cell in vehicle / Po Hong.
Author
ISBN
9789811688140 (electronic bk.)
9811688141 (electronic bk.)
9789811688133
9811688133
9811688141 (electronic bk.)
9789811688133
9811688133
Published
Singapore : Springer ; [Beijing] : Tsinghua University Press, [2022]
Copyright
©2022
Language
English
Description
1 online resource : illustrations (some color).
Item Number
10.1007/978-981-16-8814-0 doi
Call Number
TK2933.P76 H66 2022
Dewey Decimal Classification
621.31/2429
Summary
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 the air 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.
Note
"Doctoral thesis accepted by Tsinghua University, Beijing."
Bibliography, etc. Note
Includes bibliographical references.
Access Note
Access limited to authorized users.
Digital File Characteristics
text file PDF
Source of Description
Online resource; title from PDF title page (SpringerLink, viewed January 27, 2022).
Series
Springer theses.
Available in Other Form
Print version: 9789811688133
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Table of Contents
Introduction
Modeling of water content in MEA for the PEM fuel cell
Approach to online AC impedance measurement of the fuel cell
Water content estimation of the PEM fuel cell
Water management strategy for the PEM fuel cell.
Modeling of water content in MEA for the PEM fuel cell
Approach to online AC impedance measurement of the fuel cell
Water content estimation of the PEM fuel cell
Water management strategy for the PEM fuel cell.