A Delay-Dependent Dual-Rate PID Controller Over an Ethernet Network

被引：80

作者：

Cuenca, Angel ^{[1
]}

Salt, Julian ^{[1
]}

Sala, Antonio ^{[1
]}

Piza, Ricardo ^{[1
]}

机构：

[1] Univ Politecn Valencia, Inst Univ Automat & Informat Ind, Dept Ingn Sistemas & Automat, Valencia 46022, Spain

来源：

IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS | 2011年 / 7卷 / 01期

关键词：

Multirate control systems; network delay; networked control system; PID controller; stability analysis; CONTROL-SYSTEMS; STABILITY;

D O I：

10.1109/TII.2010.2085007

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a methodology to design controllers able to cope with different load conditions on an Ethernet network is introduced. Load conditions induce time-varying delays between measurements and control. To face these variations an interpolated, delay-dependent gain scheduling law is used. The lack of synchronization is solved by adopting an event-based control approach. The dual-rate control action computation is carried out at a remote controller, whereas control actions and measurements are taken out locally at the controlled process site. Stability is proved in terms of probabilistic linear matrix inequalities. TrueTime simulations in an Ethernet case show the benefit of the proposal, which is later validated on an experimental test-bed Ethernet environment.

引用

页码：18 / 29

页数：12

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