基于扩张状态观测器的高空台进气环境模拟控制技术研究

Air Intake Environment Simulation of Altitude Test Facility Control Based on Extended State Observer

针对航空发动机高空台推力瞬变等过渡态试验对进气环境模拟控制系统所提出的强抗扰性、强鲁棒性的迫切需求,设计了一种基于扩张状态观测器(ESO)的高空台进气环境模拟主动抗扰控制技术方法。首先分析了现有高空台过渡态环境模拟的技术特点和高品质控制指标难于实现的原因;其次设计线性自抗扰控制器(LADRC)和一体化并行控制器(IPC);最后通过仿真对高空台进气环境模拟主动抗扰控制方法进行了验证。结果表明,应用基于扩张状态观测器的主动抗扰控制技术,能够大幅提高发动机过渡态试验中进气环境模拟的动态响应速度、控制精度和抗扰动能力。

Aiming at the urgent requirements for the strong immunity and robustness proposed by the transient state tests of aero-engine high-altitude test facility thrust transients for the intake environment simulation control system,an active disturbance rejection control algorithm based on the extended state observer(ESO)for the simulation of the intake environment of high altitude test facility is designed.Firstly,the technical characteristics of the existing high-altitude test facility transient state environment simulation and the reasons why the high quality control indicators are difficult to achieve were analyzed.Then,the linear active disturbance rejection controller(LADRC)and the integrated parallel controller(IPC)were designed.Finally,the active disturbance rejection control is realized in the simulation environment.The results show that the active disturbance rejection control technology based on extended state observer can greatly improve the dynamic response speed,control accuracy and anti-disturbance ability of intake environment simulation in engine transient test,and has strong versatility.This work laid the foundation for subsequent practical engineering applications.