飞机座舱盖试验台增压系统分段PID控制器设计

在飞机飞行过程中,随着高度的上升,飞机座舱盖有机玻璃易形成损伤,影响飞行安全。为了能在地面试验台更加精确地模拟飞机飞行过程中座舱盖承受的压力载荷情况,通过引入分段控制思想,对试验台座舱增压系统进行控制器设计;针对试验台座舱增压系统的组成结构,建立控制系统模型,研究在虚拟仪器中通过分段控制技术实现对座舱增压系统的 PID 闭环控制。结果表明:本文设计的 PID 控制器可以提高飞机座舱增压系统的控制精度与试验效率,满足试验台压力控制系统的技术要求。

Piecewise PID Controller Designing for Pressurization System of Cabin Cover Test Bed

In order to simulate the pressure load of the cabin cover in flight more accurately on the ground test bed, the controller design of the cabin pressurization system of the test bed is carried out by introducing the idea of piecewise control. According to the system structure of the cabin pressurization system of the test bed, the control system model is established, and then the PID closed-loop control of the cabin pressurization system is realized by piecewise control technology in the virtual instrument, so as to improve the applicability and stability of the system. The results show that the PID controller designed in this paper can improve the control accuracy and test efficiency of aircraft cabin pressurization system and meet the technical requirements of test bed pressure control system.