Simulation of aircraft cabin pressure control based on Fuzzy-PID
Simulation of aircraft cabin pressure control based on Fuzzy-PID
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DOI：
10.1049/cp.2012.1351
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发表时间：
2012-03
期刊：
影响因子：
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通讯作者：
Y. Wang;Wengao Qian;Hongyan Ma
中科院分区：
文献类型：
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作者：
Y. Wang;Wengao Qian;Hongyan Ma
当一架在高空飞行的飞机改变高度时，大气压力就会发生变化。由于高空大气与地面大气的日常适应有很大差异，这种变化会使机组人员和乘客的身体状况发生异常，甚至危及生命。因此，飞机座舱压力必须随高度变化，为了保证机组人员和乘客的安全，使他们对座舱压力及其变化率感到舒适，必须有适当的压力率。针对现代大型民用飞机座舱压力控制规律，建立了压力控制系统模型，并根据系统模型的非线性特点，设计了一种模糊PID算法对座舱压力模型进行控制。最后，利用Matlab仿真软件对飞机座舱压力控制系统进行了完整的飞行验证。仿真结果表明，该模型和算法具有良好的控制效果，能够满足座舱压力控制的精度要求。
When an aircraft flying at high altitude changes altitude, atmospheric pressure will change. As high-altitude atmospheric is much different from ground atmospheric daily adapted, this change can make physical condition of the crew and passengers abnormal, even be risk for their life. Therefore, Aircraft cabin pressure must vary with altitude and the appropriate pressure rate is necessary in order to ensure the safety of crew and passengers and make them comfortable for the cabin pressure and its changing rate. Contrary to cabin pressure control law of modern large civil aircraft in this paper, pressure control system model is established and a Fuzzy PID algorithm is designed to control the cabin pressure model according to nonlinear characteristics of system model. Lastly, aircraft cabin pressure control system is verified by Matlab simulation software for a complete flight. The results of simulation illustrate that the model and the algorithm have good control effect and can meet the precision requirements of cabin pressure control.