飞机燃油系统地面全机模拟试验流量控制系统设计  

Design of Flow Simulation Subsystem of Ground Simulation Test for Aircraft Fuel System

作　　者：袁朝辉[1] 曹年霞[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《计算机测量与控制》2012年第7期1840-1842,1857,共4页Computer Measurement &Control

摘　　要：飞机燃油系统地面全机模拟试验系统流量模拟子系统用于模拟发动机燃油流量;针对某型飞机燃油系统发动机流量范围很大,允许的压力损失却很小的特点,提出分段控制与分段测量的方法;分段控制会带来切换抖动问题,采用基于二自由度模糊自适应PID的控制方法;仿真结果表明,这种方法既可以实现系统大范围流量的跟踪,也可以减小流量切换过程中出现的抖动,有较好的控制效果。Abstract： Flow simulation subsystem of ground simulation test for aircraft fuel system aims to simulate fuel flow of engine. In a certain airplane fuel system, the flow scope is very broad. In order to ensure the control precision in the whole range, the method of subsection con- trol and measuring has been put forward. A control algorithm based on fuzzy adaptive PID with two--degree of freedom has been adopted, since subsection control will bring out the switchover fluctuation phenomenon. The results of simulation show that this algorithm can realize the curve tracking of the wide--range flow and reduce the fluctuation in the flow switchover process, That is to say, this algorithm has a preferable control effect.

关 键 词：流量模拟 分段控制 切换抖动 二自由度模糊自适应PID 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]