Open AccessIdentification and control using LSDP approach applied to the PT326 blower
Author(s) -
Marwa Yousfi,
Tarek Garna,
Chakib Ben Njima
Publication year - 2021
Publication title -
wseas transactions on computers
Language(s) - English
Resource type - Journals
eISSN - 2224-2872
pISSN - 1109-2750
DOI - 10.37394/23205.2020.19.36
Subject(s) - gain scheduling , control theory (sociology) , operating point , nonlinear system , robust control , computer science , controller (irrigation) , control engineering , scheduling (production processes) , identification (biology) , system identification , control system , control (management) , engineering , mathematical optimization , mathematics , artificial intelligence , data modeling , agronomy , physics , botany , electrical engineering , quantum mechanics , database , biology
The present work focuses on the control of the nonlinear system, the PT326 blower, using the LSDP (Loop Shaping Design Procedure) approach in the discrete case and the gain scheduling technique. First, the system’s behavior is described by defining two operating points. In each of these latter the system is described using the linear ARX (Auto Regressive model with Xternal inputs) model which we propose to identify its parameters using the least squares method. Then, for each operating point the LSDP approach is exploited to synthesize a local robust controller. Later, the global robust controller resulting from switching between the local robust controllers by exploiting the gain scheduling technique is used to control the nonlinear PT326 blower.