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Minimum-Fuel Feedback Control Systems: Second-Order Case

机译:最小燃料反馈控制系统:二阶案例

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The control u(t), |u(t)| ¿1, is determined for the control of a linear plant G(s) from an initial state to a terminal state such that the fuel F = ¿otf |u(t)|dt is minimum. The maximum principle is used to prove that the optimal u(t) is necessarily piecewise constant and that u(t) = + 1, 0, or ¿1. The optimal feedback control function is derived for the plants G(s) = 1/s2 and G(s)= 1/(s+1)(s+2) using the concept of the iso-fuel curves. The phase plane is divided into three regions of operation such that to each region corresponds a value for the control u(t).
机译:控制u(t),| u(t)|确定ƒƒÂ¢1,以控制线性工厂G(s)从初始状态到最终状态,以使燃料F =ƒƒÂ¢otf | u(t )| dt最小。使用最大原理来证明最优u(t)必定是分段常数,并且u(t)= + 1、0或ƒÃ¢Â¿1。使用等燃料曲线的概念,为工厂G(s)= 1 / s2和G(s)= 1 /(s + 1)(s + 2)导出了最佳反馈控制函数。相平面被分成三个工作区域,以使每个区域对应一个控制值u(t)。

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