航空学报 > 2017, Vol. 38 Issue (S1): 721501-721501   doi: 10.7527/S1000-6893.2017.721501

大型飞机座舱温度控制系统控制律设计

任明波, 王娟, 李荣军, 党亚   

  1. 中航工业第一飞机设计研究院 机电系统设计研究所, 西安 710089
  • 收稿日期:2017-05-25 修回日期:2017-06-29 出版日期:2017-11-30 发布日期:2017-06-27
  • 通讯作者: 任明波 E-mail:renmingbo5742013@126.com

Control law design for temperature control system of large-scale aircraft cabin

REN Mingbo, WANG Juan, LI Rongjun, DANG Ya   

  1. Electro-mechanical System Design and Research Department, AVIC The First Aircraft Institute, Xi'an 710089, China
  • Received:2017-05-25 Revised:2017-06-29 Online:2017-11-30 Published:2017-06-27

摘要:

大型飞机座舱温度控制系统具有温度控制非线性、强耦合、大迟滞性等特点,对控制律设计提出很高要求。根据系统设计要求,结合执行机构动作特性,提出了一种新型座舱温度控制律。系统控制方案采用压气机出口温度控制、组件出口温度控制、座舱供气温度控制和座舱区域温度控制四级控制;压气机出口温度目标值根据大气环境温度确定,座舱供气温度目标值根据座舱区域温度控制误差确定,组件出口温度目标值根据座舱供气温度目标值中的最小值确定;使用专家比例-积分-微分(PID)控制方法设计各级温度控制器,温度控制器的设计融入了解耦控制算法和系统保护控制逻辑,控制周期由各级温度控制响应特性确定。系统地面试验与飞行试验结果显示,该座舱温度控制系统响应速度快,抗干扰能力强,控制精度高,满足系统设计要求。

关键词: 环境控制系统, 座舱, 温度控制, PID控制, 解耦控制

Abstract:

A large-scale aircraft cabin temperature control system with the characteristics of non-linearity, complex coupling and big hysteresis proposes high requirements for the system control law design. In this paper, an innovative cabin temperature control law is proposed according to the system design requirements as well as the operation mechanism behavior feature. The system control scheme applies a four-level control mode, including the compressor outlet temperature control, the cooling pack outlet temperature control, the cabin supply air outlet temperature control and the cabin zone temperature control. The target of the compressor outlet temperature is calculated according to the ambient environment temperature. The target of the cabin supply air temperature is calculated by the cabin zone control error. The target of the cooling pack outlet temperature is determined by the lowest value of the cabin supply air temperature. The expert Proportion-Integration-Differentiation (PID) control method is employed to design the temperature controller. The decoupling control arithmetic and the system protection control logic are included in the design. The control period of the operation mechanism is determined by the temperature control response of each level. It is proved by the system ground test and flight test that the cabin temperature control system demonstrates the capability of quick response, strong anti-interference, high control accuracy, and can satisfy the system design requirements.

Key words: environment control system, cabin, temperature control, PID control, decoupling control

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