基于数据驱动的跨声速风洞控制方法研究  

Research on Data-driven Control Methods for Transonic Wind Tunnels

作　　者：马靖雯 张廷丰[1] 陆明超 MA Jing-wen;ZHANG Ting-feng;LU Ming-chao(School of Electrical Engineering,Liaoning University of Technology,Jinzhou 121001,China)

机构地区：[1]辽宁工业大学电气工程学院,辽宁锦州121001

出　　处：《辽宁工业大学学报（自然科学版）》2024年第5期298-302,309,共6页Journal of Liaoning University of Technology(Natural Science Edition)

基　　金：辽宁省教育厅高等学校基本科研项目(LJ212410154056)。

摘　　要：针对跨声速风洞系统具有非线性、时滞以及建模难等特点,将无模型自适应控制方法(model free adaptive control,MFAC)引入风洞流场控制器的设计中。结合风洞历史数据和MFAC,利用动态线化技术将非线性模型转换为线性模型,并通过伪雅可比矩阵更新控制率,在此基础上再根据动态数据流场模型设计、构建风洞流场控制器。通过MATLAB软件模拟风洞流场并选取某一典型工况的总压和马赫数进行仿真验证。结果表明:在风洞流场控制系统中基于MFAC控制器相较于PID控制能够使马赫数精度更高,其输出能够更快、更稳定地达到设定值。The transonic wind tunnel is a nonlinear time-delay system,and it is difficult to establish accurate mathematical models.The model-free adaptive control(MFAC)method is introduced to the design of the wind tunnel flow control system.Combined with the historical data of wind experiment and MFAC,the data model of wind tunnel system is established by dynamic linearization method.Parameters are introduced into the control algorithm to increase adaptability,and then the pseudo-Jacobian matrix estimation algorithm is used to track the incident parameters and improve the control accuracy.On this basis,the wind tunnel flow field controller is designed and constructed according to the dynamic data flow field model.The wind tunnel flow field is simulated by MATLAB software and the total pressure and Mach number of a typical working condition are selected for simulation verification.The results show that the introduction of MFAC in the wind tunnel flow control system can improve the accuracy of Mach number,and achieve high precision and fast control of wind tunnel flow field.

关 键 词：跨声速风洞 马赫数 数据驱动 无模型自适应控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]