Title :
Auto-tuning of fractional order PI·D· controllers using a PLC
Author :
Monje, Concepción A. ; Vinagre, Blas M. ; Santamaría, Guillermo E. ; Tejado, Inés
Author_Institution :
Dept. of Syst. Eng. & Automatics, Univ. Carlos III, Leganes, Spain
Abstract :
This paper deals with the implementation of an auto-tuning method for fractional order PIλDμ controllers using a PLC. The purpose of the auto-tuning method proposed is to ensure a robust performance of the controlled system with respect to plant gain variations. Specifications of gain crossover frequency and phase margin are fulfilled, together with the iso-damping property of the time response of the system. The implementation procedure of the method in a PLC is also explained in detail. Experimental results are given to illustrate its effectiveness.
Keywords :
damping; programmable controllers; self-adjusting systems; three-term control; PLC; autotuning method; gain crossover frequency; iso-damping property; phase margin; plant gain variation; Automatic control; Control systems; Electrical equipment industry; Frequency; Nonlinear equations; Open loop systems; Programmable control; Robust control; Robustness; Time factors;
Conference_Titel :
Emerging Technologies & Factory Automation, 2009. ETFA 2009. IEEE Conference on
Conference_Location :
Mallorca
Print_ISBN :
978-1-4244-2727-7
Electronic_ISBN :
1946-0759
DOI :
10.1109/ETFA.2009.5347104
