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飞机和其它一些航行器的高度控制问题,通常可简化为一种三阶变系数系统的控制问题。本文提出了一种鲁棒非线性控制器来控制这一类系统。这种控制方法兼有“邦—邦”控制的快速性和线性控制的对噪声不敏感的优点。它的控制规律是用数学式来表达的,既可以用数字又可以用模拟的办法来实现。设计计算极其简单。由于提出了一种新的准则来确定开关曲面,进而提出了开关层控制的方法,保证了该控制器对系统各参数的大范围变化均能适应,总能给出快速、稳定、准确的响应。在一定程度上解决了需要用自适应控制来解决的问题。
The problem of altitude control of aircraft and other aircraft usually simplifies the control of a third-order variable-coefficient system. This paper presents a robust nonlinear controller to control this type of system. This control method combines the fast and linear control of “state-state” with the noise-insensitive advantages. Its rules of control are expressed mathematically, either by numbers or by analogy. Design calculation is extremely simple. Since a new criterion is proposed to determine the switch surface, a method of switch-level control is proposed to ensure that the controller can adapt to a wide range of system parameters and always provide fast, stable and accurate response . To a certain extent, solved the problems that need to be solved by adaptive control.