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Delay Margin for Predictive PI Control System
被引：1
|作者：
ZHU HongDong SHAO HuiHeDepartment of Automation Shanghai Jiaotong University Shanghai
[200030
]
机构：
来源：
关键词：
Predictive PI;
stability analysis;
stability delay margin;
D O I：
10.16383/j.aas.2005.04.005
中图分类号：
TP273.5 [];
学科分类号：
摘要：
The variation of plant dead-time deeply a?ects the stability of the predictive PI controlsystem. It is important for designing and applying the PPI controller to calculate the delay margin.A criterion of stability for the PPI system and the quantitive relationship among the delay margin,the time constant of the closed-loop system, and the dead-time of the model are given. A graphicalgorithm to compute the delay margin is also developed. The phenomenon that there exist morethan one stability delay zones is discussed. The algorithm is shown to be precise by some simulations.
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页码：38 / 44
页数：7
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