Zhejiang University Press
Hangzhou
Zhejiang University Press, co-published with Springer
11582
1673-565X
1862-1775
Journal of Zhejiang University SCIENCE A
Applied Physics & Engineering
J. Zhejiang Univ. Sci. A
Engineering
Mechanical Engineering
Civil Engineering
Classical Continuum Physics
Industrial Chemistry/Chemical Engineering
14
14
12
9
9
8
2013
9
7
2013
9
2013
Zhejiang University and Springer-Verlag Berlin Heidelberg
2013
3490
10.1631/jzus.A1300146
6
Control design of 60 kW PEMFC generation system for residential applications
679
685
2013
9
6
2013
5
3
2013
7
16
2013
9
7
Zhejiang University and Springer-Verlag Berlin Heidelberg
2013
Ying-ying
Zhang
triciayyz@163.com
Ying
Zhang
Xi
Li
Guang-yi
Cao
Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology, Institute of Oceanographic Instrumentation
Shandong Academy of Sciences
Qingdao
266001
China
Control Science and Engineering Department, Key Laboratory of the Ministry of Education for Image Processing and Intelligent Control
Huazhong University of Science and Technology
Wuhan
430074
China
Fuel Cell Institute, Department of Automation
Shanghai Jiao Tong University
Shanghai
200030
China
Abstract
This paper presented a control design methodology for a proton exchange membrane fuel cell (PEMFC) generation system for residential applications. The dynamic behavior of the generation system is complex in such applications. A comprehensive control design is very important for achieving a steady system operation and efficiency. The control strategy for a 60 kW generation system was proposed and tested based on the system dynamic model. A two-variable single neuron proportional-integral (PI) decoupling controller was developed for anode pressure and humidity by adjusting the hydrogen flow and water injection. A similar controller was developed for cathode pressure and humidity by adjusting the exhaust flow and water injection. The desired oxygen excess ratio was kept by a feedback controller based on the load current. An optimal seeking controller was used to trace the unique optimal power point. Two negative feedback controllers were used to provide AC power and a suitable voltage for residential loads by a power conditioning unit. Control simulation tests showed that 60 kW PEMFC generation system responded well for computer-simulated step changes in the load power demand. This control methodology for a 60 kW PEMFC generation system would be a competitive solution for system level designs such as parameter design, performance analysis, and online optimization.
Key words
Proton exchange membrane fuel cell (PEMFC)
Generation system
Control strategy
decoupling control
Optimal seeking control
CLC number
TM911.42
N945.1
Project supported by the Hi-Tech R&D Program (863) of China (No. 2002AA517020), the National Nature Science Foundation of China (No. 60804031), the Natural Science Foundation of Shandong Province (No. ZR2012BQ016), and the Science and Technology Plan of Shandong Province (No. 2013GHY11521), China