舱温控制系统模型及算法研究

Research about Algorithm and Model of Cabin Temperature Control System

摘要:

数字式闭环控制在机载机电系统中应用广泛，选取典型的舱温控制系统作为研究对象。在Matlab中使用Simulink搭建系统模型，采用针对纯滞后系统的Smith控制算法进行仿真研究，并根据仿真模型建立系统原型平台，平台包括模型仿真机、仿真目标机以及控制器软件、人机交互界面。仿真结果与现场运行实验结果均表明Smith控制算法可以满足舱体温度系统控制要求，同时通过对闭环数字控制技术的方法和流程进行摸索，掌握了控制律软件设计与实现的快速原型技术，便于后续项目的工程应用。

Abstract:

Digital loop control is widely used in airborne electromechanical system, and the typical cabin temperature control system is selected as the research object. A system model is built in Matlab by Simulink , in which simulation research of Smith control algorithm based on the pure lag system is carried out. A prototype platform which includes model simulator, simulation target machine, controller software and human computer interface is built according to the system model. The results of simulation and field test show that Smith control algorithm meets the requirement of cabin temperature control system. Although the research of method and flow about digital loop control, control software design and rapid prototyping technology are mastered, and this is helpful for the engineering application of the follow-up project.