论文部分内容阅读
在控制系统中,时滞的存在往往引起系统性能变差,甚至不稳定。文中针对线性时滞系统,基于时滞分割方法分析建立了系统稳定新条件,在此基础上,设计了有记忆反馈控制器,该方法通过求解线性矩阵不等式(LMI)的可行解得到控制器的参数化表达式。该控制器应用于液体火箭发动机燃烧室燃烧过程的仿真表明,所提方法扩大了系统稳定的最大时滞上界范围,具有更低的保守性,同时具有更好的控制效果。
In the control system, the existence of time-delay often leads to poor performance of the system, or even unstable. In this paper, we establish a new system stability condition for linear time-delay systems based on time-delay segmentation. Based on this, a memory feedback controller is designed. By solving the feasible solution of linear matrix inequality (LMI) Parameterized expression. The simulation of the combustion process of the liquid rocket engine combustion chamber using the controller shows that the proposed method expands the upper bound of the maximum time-delay of the system stability, has lower conservativeness and has better control effect.