A Sliding Mode Control of the Water-Cooled PEMFC System Based on Disturbance Observer
- Resource Type
- Conference
- Authors
- Su, Minghang; Hu, Haowen; Ou, Kai
- Source
- 2022 China Automation Congress (CAC) Automation Congress (CAC), 2022 China. :6693-6698 Nov, 2022
- Subject
- Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Couplings
Fuel cells
Coolants
Numerical simulation
Stability analysis
Temperature control
Steady-state
Stack temperature control
proton exchange membrane fuel cell (PEMFC)
Sliding mode control
extended state observer
dual-loop integral sliding mode control
- Language
- ISSN
- 2688-0938
The stability of the stack temperature in proton exchange membrane fuel cell (PEMFC) system is of vital importance for its safe operation. Suppression of interference can improve the stability of temperature control, and consequently enhance the efficiency and lifetime of PEMFC. In this work, a non-linear thermal model based on the coupling of coolant temperature and fuel cell (FC) temperature is built to facilitate the control design. Then, a dual-loop integral sliding mode controller based on a reduced order extended observer (DLSMC-RESO) and a sliding mode controller based on an extended state observer (SMC-ESO) are studied to maintaining the stack temperature during disturbance dynamical changing by regulating the coolant water flow rate. The numerical simulation results show that the proposed controllers have a great anti-disturbance ability, and the DLSMC-RESO has faster response speed and smaller steady-state error than SMC-ESO.