Internal Model Decoupling Controller Design for High Pressure PEMFC Air Supply System

Abstract:

In view of the strong coupling between air mass flow and back pressure in the air supply system of high pressure proton exchange membrane fuel cell (PEMFC), a robust decoupling controller that combined the principal of internal model control (IMC) with multiple variable decouple control theory is proposed. The simulation results show that the internal modeldecoupling controller can not only provide a nice decoupling, but also get a much better robust performance compared with the traditional proportionintegralderivative (PID) decoupling controller when the real system does not match well with the nominal model; moreover, the proposed controller is also featured with less controller parameters and easy to be tuned.