数字式座舱压力调节系统的模糊滑模变结构控制

Journal of Applied Sciences ›› 2009, Vol. 27 ›› Issue (5): 545-550.

• Control and System • Previous Articles

Fuzzy Sliding Mode Variable Structure Control of Digital Cabin Pressure Regulating System

1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics,
Beijing 100083, China
2. School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics,
Beijing 100083, China

Received:2009-04-11 Revised:2009-07-13 Online:2009-09-25 Published:2009-09-25

Abstract

Abstract:

Based on the nonlinear and time varying parameter of the cabin pressure regulating system characteristics,
a control strategy of fuzzy sliding mode variable structure control is proposed. The fuzzy sliding mode variable structure controller keeps advantages of unreliable system mode of fuzzy controllers, and has the additional
advantages of strong robustness to parameter variation and disturbance, elimination or avoidance of chattering phenomena of sliding mode controllers by using softening control signals. Experiment results show that the proposed method can improve the system’s dynamic response and reduce steady-state errors, and is invariant to disturbances compared to PID controllers.

Key words: cabin pressure regulating system, fuzzy sliding mode variable structure control, nonlinear

CLC Number:

V245.3

ZHU Lei, FU Yong-ling, ZHAO Jing-quan, PENG Chao-qin. Fuzzy Sliding Mode Variable Structure Control of Digital Cabin Pressure Regulating System[J]. Journal of Applied Sciences, 2009, 27(5): 545-550.

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Fuzzy Sliding Mode Variable Structure Control of Digital Cabin Pressure Regulating System

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