Abstract:

The temperature control system of large-sized aircraft has both delay and delay of large cabin capacity and fast dynamic feedback of small cabin capacity. At the same time, the influence of the flow rate on the performance of the aircraft will also bring about temperature changes, which will increase the difficulty of system control. In order to keep the cabin temperature control in the comfort zone of large passenger aircraft, the traditional control system has some limitations, and more advanced control methods are needed. In this paper, a multi-stage temperature control structure is designed according to the temperature characteristics of cabin area. The design scheme of the anti-windup PID control model is used to control the system.The temperature control system has the speed of control, stability of hysteresis control and anti-interference ability. At the same time, the cold road control uses the speed of the four-wheel air circulation system to replace the component outlet temperature to control the temperature of the mixing chamber in the traditional control to avoid system failure caused by inaccurate measurement of the component outlet temperature sensor when icing and other phenomena occur in the system.

Key words: cabin temperature, multi-stage temperature control, anti-windup PID, four-wheel air circulation, measurement, mixing, model

摘要：

大型客机温度控制系统对象既有大舱容的延时和滞后，又有小舱容的快速动态反馈的特征；同时流量变化对飞机的性能影响也会带来温度的变化，增加系统控制难度。大型客机的座舱温度控制要保持在舒适区范围内，采用传统控制系统有一定的局限性，需要使用更为先进的控制方法。针对座舱区域温度特点设计一种多级温度控制结构，运用抗饱和PID控制算法的模型进行控制。使得温度控制系统既有控制的快速性，又有迟滞控制的稳定性和抗干扰能力。同时冷路控制采用四轮式空气循环系统的转速代替传统控制中的组件出口温度来控制混合腔温度，避免系统出现结冰等现象时组件出口温度传感器测量不准确引起的系统故障。

关键词: 座舱温度, 多级温度控制, 抗饱和PID, 四轮式空气循环系统, 测量, 混合, 模型