Open AccessEstablishment and Experimental Analysis of Runtime Humidity Soft Sensing Model of PEMFC Based on Internal Resistance
Author(s) -
Baohua Tan,
Tengfei Xiao,
Rui Quan,
Shuhai Quan,
Hongbin Chen
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/453/1/012041
Subject(s) - humidity , proton exchange membrane fuel cell , internal pressure , internal resistance , relative humidity , materials science , internal heating , environmental science , fuel cells , computer science , simulation , mechanical engineering , composite material , engineering , thermodynamics , physics , chemical engineering , power (physics) , battery (electricity)
The internal humidity is very important in Proton Exchange Membrane Fuel Cell, but it cannot be measured directly because of the closed structure of the cell. It has been proofed that humidity has strongly contract with some internal parameters such as resistance, temperature and gas pressure. After studying and analysis on classical humidity mechanism models, this paper operated some experiments on PEMFC runtime humidity based on soft sensing technology, then established and test humidity soft sensing model based on runtime internal resistance. The experiment results shown that the output value of soft sensing model matched well with the theoretical calculation data. And the errors were almost within 1%. It verified the effectiveness of soft sensing model based on internal resistance.