PRESSURE TRACKING CONTROL METHOD OF FUEL CELL HYDROGEN SUPPLY SYSTEM BASED ON LADRC

Zhao Hongshan; Wang Yufeng; Ma Libo; Jiang Yiming; Xu Junyang

doi:10.19912/j.0254-0096.tynxb.2022-0922

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (12) : 463-470. DOI: 10.19912/j.0254-0096.tynxb.2022-0922

PRESSURE TRACKING CONTROL METHOD OF FUEL CELL HYDROGEN SUPPLY SYSTEM BASED ON LADRC

Zhao Hongshan, Wang Yufeng, Ma Libo, Jiang Yiming, Xu Junyang

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Abstract

Aiming at the problem that the pressure balance of cathode and anode of fuel cell stack is easily disturbed, a second-order linear ADRC method for hydrogen supply system of fuel cell stack is proposed. Firstly, based on the operation characteristics of the fuel cell hydrogen supply system, a control oriented third-order hydrogen supply system model is established. Then, based on the control oriented third-order model and the auto disturbance rejection theory, an extended state observer and a linear state error feedback are designed for the hydrogen supply system. On this basis, a second-order linear auto disturbance rejection control law for the pressure tracking of the hydrogen supply system of the fuel cell stack is obtained. The simulation results show that the pressure tracking control method of hydrogen supply system based on second-order linear auto disturbance rejection control has excellent response speed, accuracy and anti-interference ability, and can realize real-time estimation and compensation of system disturbance terms, as well as fast and stable tracking of fuel cell anode pressure to cathode pressure.

Key words

fuel cell / pressure control / disturbance rejection / hydrogen supply system

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Zhao Hongshan, Wang Yufeng, Ma Libo, Jiang Yiming, Xu Junyang. PRESSURE TRACKING CONTROL METHOD OF FUEL CELL HYDROGEN SUPPLY SYSTEM BASED ON LADRC[J]. Acta Energiae Solaris Sinica. 2023, 44(12): 463-470 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0922

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