Hybrid prediction method and system for voltage decline of hydrogen fuel cell

• Main Authors: KE YUQI, WEI ZONGYI, PAN MEILIN, OUYANG KONGLEI, PENG WEIWEN
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a hybrid prediction method and system for voltage decline of a hydrogen fuel cell, and the method comprises the steps: obtaining the electrochemical impedance data and voltage historical operation data of the hydrogen fuel cell, and constructing an equivalent circuit model; based on the equivalent circuit model, performing parameter identification processing on the hydrogen fuel cell to obtain health state characteristic parameters of the hydrogen fuel cell; and based on the health state characteristic parameters of the hydrogen fuel cell, performing prediction processing on the voltage of the hydrogen fuel cell through a data driving method to obtain a voltage decline prediction result of the hydrogen fuel cell. By using the method, the accuracy of long-term prediction of the voltage data of the hydrogen fuel cell can be improved while complex mechanism modeling is simplified. The hybrid prediction method and system for the voltage decline of the hydrogen fuel cell can be widely appli