Back to Search Start Over

Improvement of Temperature and Humidity Control of Proton Exchange Membrane Fuel Cells

Authors :
Song Qiujie
Xiaofeng Wu
Li Wei
Yu Lan
Zhixiao Jiao
Jiarui Zhu
Xiong Shusheng
Zeyu Han
Wu Zhankuan
Daize Li
Shuhao Peng
Shuyan Ye
Heqing Huang
Teng Zhang
Zhang Xiaoxuan
Source :
Sustainability, Volume 13, Issue 19, Sustainability, Vol 13, Iss 10578, p 10578 (2021)
Publication Year :
2021
Publisher :
Multidisciplinary Digital Publishing Institute, 2021.

Abstract

Temperature and humidity are two important interconnected factors in the performance of PEMFCs (Proton Exchange Membrane Fuel Cells). The fuel and oxidant humidity and stack temperature in a fuel cell were analyzed in this study. There are many factors that affect the temperature and humidity of the stack. We adopt the fuzzy control method of multi-input and multi-output to control the temperature and humidity of the stack. A model including a driver, vehicle, transmission motor, air feeding, electrical network, stack, hydrogen supply and cooling system was established to study the fuel cell performance. A fuzzy controller is proven to be better in improving the output power of fuel cells. The three control objectives are the fan speed control for regulating temperature, the solenoid valve on/off control of the bubble humidifier for humidity variation and the speed of the pump for regulating temperature difference. In addition, the results from the PID controller stack model and the fuzzy controller stack model are compared in this research. The fuel cell bench test has been built to validate the effectiveness of the proposed fuzzy control. The maximum temperature of the stack can be reduced by 5 °C with the fuzzy control in this paper, so the fuel cell output voltage (power) increases by an average of approximately 5.8%.

Details

Language :
English
ISSN :
20711050
Database :
OpenAIRE
Journal :
Sustainability
Accession number :
edsair.doi.dedup.....2cf53877933798ac0abcc6c2a24f539d
Full Text :
https://doi.org/10.3390/su131910578