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A Novel Sliding Mode Control for the Air Management System of Fuel Cell Stack

SSRN, ISSN: 1556-5068
2023
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    99

Article Description

Proton exchange membrane fuel cell (PEMFC) has the advantages of clean, high efficiency and environmental protection. Aiming at the optimal oxygen excess ratio control of the system under the complex and changeable conditions, a fourth-order nonlinear system mathematical model for the air supply system of PEMFC stack is developed by Simulink. A new nonsingular terminal sliding mode controller is proposed to control the OER (oxygen excess ratio) of the system, adjust the excess oxygen and prevent hypoxia. The results show that compared with the traditional linear sliding mode controller, the designed controller has lower delay and response time for sudden change. Furthermore, the new sliding mode structure will achieve finite time convergence and solve the problem that the traditional terminal sliding mode has singular points. This novel control method effectively improves the efficiency, stability, and reliability of the PEMFC system.

Bibliographic Details

Shiyi Fang; Rongrong Zhang; Daifen Chen; Xinyu Fan; Sergey Maltsev; Aleksey Levtsev

Elsevier BV

Multidisciplinary; Fuel cell stack; Sliding mode control; Electricity storage; Decarbonized power system; Hydrogen energy; Oxygen excess ratio

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