Fault-tolerant ellipsoidal unfalsified control for PEM fuel cell systems

FERNANDO BIANCHI; CARLOS OCAMPO-MARTÍNEZ; CRISTIAN KUNUSCH; RICARDO S. SÁNCHEZ PEÑA

IEEE TRANSACTIONS ON ENERGY CONVERSION

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Lugar: New York; Año: 2015 vol. 30 p. 307 - 315

0885-8969

This paper addresses the implementation of a data driven control strategy in a real test bench based on proton exchange membrane fuel cells (PEMFCs). The proposed control scheme is based on unfalsified control, which allows adapting in real time the control law by evaluating the performance specifications based only on measured input?output data. This approachis especially suitable to deal with nonlinearity, model uncertainty, and also possible faults that may occur in PEMFCs. The control strategy has been applied to several experimental practical situations in order to evaluate not only the systemperformance, but also different fault scenarios. The experimental results have shown the effectiveness of the proposed approach to regulate the oxygen stoichiometry in real-time operation, as well as to maintain a proper system performance under fault situations. Also, a start-up mass flow controller is added in order to bring the system toward its normal operating conditions