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针对基于地面桥载空调的民航飞机客舱温度控制中的系统建模问题,采用基于机理建模以及参数辨识相结合的方法,建立了系统的数学模型,并采用模糊PID进行了仿真控制实验。首先详细分析桥载空调给飞机客舱制冷的工作原理;在此基础上,通过线性化假设,机理建模以及参数辨识相结合的方法,建立系统模型;最后采用模糊PID控制算法,进行闭环控制仿真实验,实验结果证明了系统模型的合理性。该模型对从事飞机地面空调控制的研究具有参考意义。
Aiming at the problem of system modeling in cabin temperature control of civil aircraft based on ground bridge air-condition, the mathematical model of the system is established based on mechanism modeling and parameter identification, and the simulation experiment is carried out by using fuzzy PID. Firstly, the working principle of bridge air-conditioners to aircraft cabin cooling is analyzed in detail. On this basis, the system model is established through the combination of linearization assumption, mechanism modeling and parameter identification. At last, fuzzy PID control algorithm is used to simulate closed-loop control Experiments and experimental results show that the system model is reasonable. The model has reference significance to the research of aircraft ground air conditioning control.