Fractional order PID control of air feed system in a proton exchange membrane fuel cell

Document Type : Research Paper


1 I & CE Department, PSG College of Technology, Coimbatore, Tamil Nadu, Inida.

2 Validation Team, Caterpillar India Engineering Solutions Private Limited, Chennai, Tamil Nadu, India.


Proton Exchange Membrane Fuel Cell (PEMFC) converts chemical energy liberated during the electrochemical reaction of hydrogen and oxygen to electrical energy and has huge potential in transport, stationary and portable applications. It is an open loop stable system but it does not settle in the given set point. Hence controllers are required to make the system to settle at the set point and also to prevent the PEMFC from oxygen starvation. A simulative approach of controlling PEMFC with Proportional Integral Derivative (PID) controller and Fractional order PID (FOPID) controller is investigated in this paper. FOPID controller is tuned using two approaches namely KC auto tuning and Oustaloup approximation. The performances of the two FOPID controllers are compared with PID controller. The use of FOPID controller results in better closed loop time domain characteristics than PID controller and is shown with simulations in MATLAB.


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Volume 12, Special Issue
December 2021
Pages 1553-1560
  • Receive Date: 10 August 2021
  • Revise Date: 19 October 2021
  • Accept Date: 23 November 2021