NDLI: Modeling and control of air system for PEMFC system

Content Provider	IEEE Xplore Digital Library
Author	Jing Gu Languang Lu Liangfei Xu Minggao Ouyang
Copyright Year	2009
Description	Author affiliation: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China (Jing Gu; Languang Lu; Liangfei Xu; Minggao Ouyang)
Abstract	In order to deal with the problem of instability in the air mass flow control at high load, the air system of a lowpressure fuel cell system is studied in details. Based on the analysis of the system architecture, the dynamic model of the air system is developed, in which a semi-empirical model of blower is built and the impact of parasitic power of the blower on the net power of the fuel cell system is taken into consideration. The accuracy of the model is verified by comparing the simulation results with the experimental data. Then the reason for instability is studied using both model simulation and theoretical analysis which employs the automatic control theory based on the linearized system model. The analysis result shows that the feedback loop of the blower current is the cause for instability. Furthermore, a new control algorithm is designed. The new control algorithm opens the current loop and adapts the optimized control parameters. The test results show that the air mass flow rate is stable and the improved system has a good performance.
Starting Page	1736
Ending Page	1741
File Size	317312
Page Count	6
File Format	PDF
ISBN	9781424426003
DOI	10.1109/VPPC.2009.5289694
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Control system synthesis Power system modeling Automatic control Open loop systems Fuel cells Pressure control Weight control Control systems Analytical models Feedback loop Air mass flow control Fuel cell system Instability Modeling
Content Type	Text
Resource Type	Article

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