座舱压力控制系统控制重构设计  

Control reconfiguration design for cabin pressure control system

作　　者：张钊 杨忠[1] 陈爽 刘舒畅 张小恺 ZHANG Zhao;YANG Zhong;CHEN Shuang;LIU Shuchang;ZHANG Xiaokai(College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Electronic Engineering Department,Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration,Nanjing 211106,China)

机构地区：[1]南京航空航天大学自动化学院,江苏南京211106 [2]航空机电综合航空科技重点实验室电子工程部,江苏南京211106

出　　处：《应用科技》2021年第5期110-117,共8页Applied Science and Technology

基　　金：航空科学基金项目(重点实验室类)(201928052006,20162852031)。

摘　　要：座舱压力控制系统(CPCS)的传感器、执行器等部位会存在一些潜在的故障,它们严重威胁了机组人员生命安全。因此,提出了一种基于模型跟随的重构方法来补偿故障产生的影响,从而保证座舱压力控制系统能够安全稳定运行。综合考虑座舱压力控制系统的机理特性,首先将线性化后的座舱压力控制系统数学模型作为参考模型,然后通过故障注入得到系统故障模型,接着利用模型跟随法对典型故障模型进行控制重构,并采用粒子群优化算法对重构控制律的参数进行寻优,最后针对特殊故障的重构问题设计了三热一冷的余度结构。为了接近真实情况,本文设计了飞机从起飞到着陆的整个飞行包线,在此基础上进行仿真研究。仿真结果表明,所研究方法对故障系统具有良好的重构效果,保证了系统发生故障后的安全性与可靠性,而且基于线性模型的重构算法设计简便,工程实用性强。There are several potential faults in the sensors,actuators and other parts of cabin pressure control system(CPCS),which seriously threaten the safety of the crew.Therefore,a model following based reconfiguration method is proposed to compensate for the fault impacts,so as to ensure the safety and stability of CPCS.Considering the mechanism characteristics of CPCS,firstly,the linearized mathematical model of CPCS is used as a reference model.Then,fault models are obtained by fault injection and the typical one is reconstructed by adopting the model following method.Particle swarm optimization algorithm is used to optimize the parameters of the reconfiguration control law.Finally,the redundancy structure of triple heat and one cold is designed for the reconfiguration of special faults.To be close to the real situation,the entire flight envelope of the aircraft from take-off to landing is designed in this paper,and simulation research is carried out on this basis.Simulation results suggest that the proposed algorithm has a good reconfiguration capability for CPCS with different faults,which guarantees the safety and reliability of CPCS.Moreover,it is shown that the control reconfiguration algorithm based on linear models is of great practicality and simplicity.

关 键 词：座舱压力控制系统 数学模型 组件故障 故障注入 控制重构 模型跟随 余度技术 粒子群寻优 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]