• 作者： Huang, Hsiao-Ping; Chen, Chan-Cheng
• 中文摘要： 文獻上的研究指出對於FODUS程序,其可為 P/PI所安定的條件為時延與不穩定時間常數的比值小於壹。在本文中我們發現如果考慮PD/PID控制器的話,此一比值可以放寬為貳。同時,我們亦個別討論引進極位與零位對系統可安定性的影響以作為控制系統設計時的依據。
• 英文摘要： The issue of stabilizing a time-delayed unstable processes is addressed in this article. It has been reported in literature that a P or PI controller can stabilize a first order delayed unstable ( FODUS) process with .theta./T<1 only. It is found that if a PD or PID controller is introduced into the system, this constraints of stabilizability can be relaxed to .theta./T<2. The effects of stable poles and zeros on this constraint of stabilizability are also investigated. Such a result can be used as guidelines for stabilizing an open loop unstable process by re-allocating the stable open- loop poles and zeros.
• 中文關鍵字： 時延; 不穩定; 系統; 控制
• 英文關鍵字： Time Delay; Unstability; System; Control