北京航空航天大学学报 ›› 2013, Vol. 39 ›› Issue (4): 544-548.

• 论文 • 上一篇    下一篇

高速热气流模拟风洞的供油流量控制

蔡超志, 李运华, 滕丰健   

  1. 北京航空航天大学 自动化科学与电气工程学院, 北京 100191
  • 收稿日期:2012-04-25 出版日期:2013-04-30 发布日期:2013-05-03

Control of fuel flow-rate supply system in high-speed airflow thermal simulation tunnel

Cai Chaozhi, Li Yunhua, Teng Fengjian   

  1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2012-04-25 Online:2013-04-30 Published:2013-05-03

摘要: 根据高速热气流风洞模拟实验系统对供油系统的要求,设计了基于变频调速加旁路比例节流阀调节的燃油供给系统.通过分析系统各个环节的特点,建立了系统的数学模型.针对燃油供给系统流量反馈的大纯滞后特性,提出了模糊PID(Proportion Integration Differentiation)加预测控制的控制策略.仿真和实验表明:所提出的控制策略满足了高速热气流模拟实验系统对燃油流量控制品质的要求,控制效果优于普通的PID和模糊PID控制策略.

Abstract: According to the requirements of high speed airflow thermal tunnel simulation experiment system for fuel supply system, a fuel supply system based on variable frequency speed-regulating and bypass proportional throttle valve regulating was designed. After the analysis of the characteristics of every subsystem, the mathematical model of the system was established. Focused on the characteristic of large pure time delay existed in flow feedback of the fuel supply system, a fuzzy proportion integration differentiation (PID) prediction control strategy was proposed. The simulations and experiments show that the proposed control strategy has met the demand of the high speed airflow thermal tunnel simulation experiment system for fuel flow control quality. And the control effect is better than conventional PID and fuzzy PID control strategy.

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