给定值和干扰响应解耦的新型控制器设计

摘要

In this paper, the control of systems with time delay is discussed based on input/output methods. A new predictive control structure is studied in the frequency domain. The main feature of the new scheme is that the disturbance is decoupled from the setpoint response and thus can be adjusted separately. Hence, the resulted controller improves performance of the disturbance rejection. An optimal performance index is defined by desired closed loop transfer function and systematic design procedure is developed to derive the controller analytically. Examples are given to illustrate the method.%基于输入输出方法讨论时滞对象控制问题.在传统控制结构基础上讨论了一种新型的控制结构,它可以使系统的给定值响应和干扰响应解耦,分别通过一个参数优化.通过期望闭环传递函数定义了最优性能指标,然后解析地推导出控制器,保证了系统具有好的干扰抑制能力.为了说明新的设计方法,文中给出了设计例子.