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The Application of Disturbance-Observer-Based Control in Breath Pressure Control of Aviation Electronic Oxygen Regulator

Author

Listed:
  • Rui Pan

    (School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China)

  • Guiping Lin

    (School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China)

  • Zhigao Shi

    (Hefei Jianghang Aircraft Equipment Corporation LTD. AVIC, Hefei 230051, China)

  • Yu Zeng

    (School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China)

  • Xue Yang

    (Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China)

Abstract

The electronic oxygen regulator (EOR) is a new type of aviation oxygen equipment which uses electronic servo control technology to control breathing gas pressure. In this paper, the control method of EOR was studied, and the dynamic model of the aviation oxygen system was established. A disturbance-observer-based controller (DOBC) was designed by the backstepping method to achieve the goal of stable and fast breath pressure control. The sensitivity function was proposed to describe the effect of inspiratory flow on breath pressure. Combined with the frequency domain analysis of the input sensitivity function, the parameters of the DOBC were analyzed and designed. Simulation and experiment studies were carried out to examine the control performance of DOBC in respiratory resistance and positive pressurization process under the influence of noise and time delay in the discrete electronic control system, which could meet the aviation physiology requirements. The research results not only verified the rationality of the application of DOBC in the breath control of EOR, but also proved the effectiveness of the control parameters design method according to the frequency domain analysis, which provided an important design basis for the subsequent study of EOR.

Suggested Citation

  • Rui Pan & Guiping Lin & Zhigao Shi & Yu Zeng & Xue Yang, 2021. "The Application of Disturbance-Observer-Based Control in Breath Pressure Control of Aviation Electronic Oxygen Regulator," Energies, MDPI, vol. 14(16), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5189-:d:619399
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    References listed on IDEAS

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    1. Ning Gao & Xin Lin & Weimin Wu & Frede Blaabjerg, 2021. "Grid Current Feedback Active Damping Control Based on Disturbance Observer for Battery Energy Storage Power Conversion System with LCL Filter," Energies, MDPI, vol. 14(5), pages 1-16, March.
    2. Janusz Baran & Andrzej Jąderko, 2020. "An MPPT Control of a PMSG-Based WECS with Disturbance Compensation and Wind Speed Estimation," Energies, MDPI, vol. 13(23), pages 1-20, December.
    3. Nebiyeleul Daniel Amare & Doe Hun Kim & Sun Jick Yang & Young Ik Son, 2021. "Boundary Conditions for Transient and Robust Performance of a Reduced-Order Model-Based State Feedback Controller with PI Observer," Energies, MDPI, vol. 14(10), pages 1-18, May.
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    Cited by:

    1. Juan Zhai & Shengquan Li & Zhuang Xu & Luyao Zhang & Juan Li, 2022. "Reduced-Order Extended State Observer-Based Sliding Mode Control for All-Clamped Plate Using an Inertial Actuator," Energies, MDPI, vol. 15(5), pages 1-12, February.
    2. Ryszard Dindorf & Jakub Takosoglu & Piotr Wos, 2021. "Advances in Fluid Power Systems," Energies, MDPI, vol. 14(24), pages 1-6, December.

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