风洞流场马赫数补偿解耦控制研究

风洞流场参数-总压、马赫数之间存在严重的耦合关系。解决二者之间的耦合问题，对提高系统的控制精度、减小调节时间、增强系统的稳定性、鲁棒性，具有重大的现实意义。笔者首先以某风洞流场为研究对象，建立流场参数的逻辑模型，接着从补偿解耦的角度出发，借鉴多变量子空间补偿解耦思想，提出解耦补偿算法和补偿系数整定，建立流场参数补偿解耦模型。最后经过多次仿真实验、分析，进一步验证了该补偿解耦算法的有效性。

Research on Mach number control compensation decoupling for wind tunnel

There exist a close coupling relation between the wind tunnel flow field parameters, total pressure and Mach number. It is great important to solve the coupling problem of total pressure and Mach number, and useful to improve the control accuracy of system, to reduce adjustment time, to reforce system stability and robust. First, objected to a wind tunnel field flow, its logic model is constructed. Then, from the view point of conpensation decoupling, decoupling arithmetic based on multi-variable sub-space and decoupling compensation factors is given, the parameter decoupling model of wind tunnel flow field is constructed. Last, a series of simulation experiment proves the effectiveness of the arithmetic.