摘要
在系统性能变量作为反馈输入的情况下,假设所有信号都是标量,发展了一般反馈系统基本设计限制的理论。为了把该理论延伸到性能变量不能用作反馈输入的系统,设计了一个常态控制器用来解决一般控制体系中干扰衰减问题。在控制结构基础上,要注重相对于性能输出的传感器的位置,以及相对于外部输入的激励源的位置等。除了在测试输出性能时存在折中外,在扰动衰减和鲁棒稳定性之间也可能存在折中。
The theory of fundamental design limitations is well understood for the case that the performance variable is measured for feedback. The theory is extended to systems for which the performance variable is not measured, to solve the disturbance attenuation problem. The results of the paper depend on the control architecture, specially, on the location of the sensor relative to performance output, and the exater relative to the exogenous input. It shows that there may exist a tradeoff between disturbance attenuation and stability robustness that is in addition to the tradeoffs that exist when the performance output is measured.
出处
《控制工程》
CSCD
2005年第S1期30-33,共4页
Control Engineering of China
关键词
干扰衰减
设计折中
常态控制器
鲁棒稳定性
disturbance attenuation
tradeoff
proper controller
stability robustness
