Title :
Modified relay feedback test and its use for non-parametric loop tuning
Author_Institution :
IMB Controls & Univ. of Calgary, Calgary, AB
Abstract :
The relay feedback test is modified the way, so that the ultimate frequency in the test coincides with the phase cross-over frequency in the open-loop system having a PID controller. This allows for formulation simple non-parametric tuning rules for PID controllers that provide desired gain margins exactly. Tuning rules for a PI controller and simulation examples are provided.
Keywords :
PI control; feedback; open loop systems; relay control; three-term control; PI control; PID controller; modified relay feedback test; nonparametric loop tuning; open-loop system; phase cross-over frequency; Control systems; Distributed control; Feedback loop; Frequency response; Open loop systems; Relays; System testing; Three-term control; Transfer functions; Tuning;
Conference_Titel :
American Control Conference, 2008
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-2078-0
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2008.4587246
