Control Systems
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A Polymer Electrolyte Membrane (PEM) fuel cell system model that is suitable for control study is presented in this paper. The PEM mathematical model is then used for the controller development to improve system performance. Within the... more
A Polymer Electrolyte Membrane (PEM) fuel cell system model that is suitable for control study is presented in this paper. The PEM mathematical model is then used for the controller development to improve system performance. Within the University research facilities, there is a PEM Fuel Cell Test station (PEM –FCT) available, so the PEM-FCT is used for the modelling and controller study. A fuzzy set-point weighted PID controller is designed to improve the performance of the fuel cell system. For the weighted PID control, the set point weight value is continuously updated using a fuzzy inference system, which is built based on the current system error and its rate of variations. The new control strategy is implemented on a PC based computer model of the FCT system and simulated. The results indicated that the control strategy has improved the system performance dramatically.