摘要
基于内模控制（ＩＭＣ）的ＰＩＤ控制器设计方法只有一个整定参数，其整定参数直接与闭环响应速度和控制回路的鲁棒性有关。对于时滞系统，如果使用非对称的二阶Ｐａｄｅ近似代替，则能导出一个简单的二阶控制器形式，而不会使控制器变得复杂，并且模型匹配和控制器整定将获得有意义的改善，特别是对时滞较大的系统。
For a system with deadtime, if use approximation for the time delay, the IMC controller includes implicitly integral action and has a PID structure in cascade with a filter. By using a non-symmetric second order approximation instead, one can preserve the simple second order form of the controller for their model and do not make structure of controller complex. In addition significant improvements in model matching and controller tuning can be obtained. Especial for those process that have significant deadtime.
出处
《控制与决策》
EI
CSCD
北大核心
1998年第4期337-341,共5页
Control and Decision
关键词
PID控制器
参数整定
时滞系统
内模整定
PID controller tuning, internal model control(IMC), non-symmetric pade approximation
