非线性锅炉-汽轮机系统的鲁棒控制

本文采用环路成形Ｈ∞控制方法对一非性性锅炉－汽轮机系统进行设计，为了能方便地在实际中工程中实现复杂的控制器，本文提出用多变理ＰＩＤ控制器逼近所得控制器的方法，最终简化的由位于主对角通道的三个ＰＩ控制器及位于次对角通道的一个ＰＩ控制器实现，仿真表明所得控制器具有较好的信号跟踪、抗干扰性能，并能在较大范围操作点工作，从而具 鲁棒性。

Robust Control for a Nonlinear Boiler-Turbine System*

A loop-shaping H∞ controller is designed for a nonlinear multivariable boiler-turbine system.In order to implement the complex H∞ controller,we propose a method to reduce it to a multivariable PID controller.The final simplified controller is composed of three main-channel PI controllers plus one off-channel PI controller.Simulation shows that the designed controllers have good tracking,disturbance rejection properties,and robustness against the variations of the operation points due to the plant nonlinearity.