MESA LAB
IFAC’14 Paper Review(On selected two papers)
Zhuo LiMESA (Mechatronics, Embedded Systems and Automation)LAB
School of Engineering,University of California, Merced
E: [email protected]: CAS Eng 820 (T: 209-228-4398)
Sep 28, 2014. Monday 4:00-6:00 PMApplied Fractional Calculus Workshop Series @ MESA Lab @ UCMerced
MESA LAB
Sessions inline with my research focus
• Industrial Applications of Process Control
• Process Control Applications
• Nonlinear Predictive Control
• Model Predictive Control in Chemical Processes
• Model Predictive Control for Embedded Systems
Slide-2/1024
AFC Workshop Series @ MESALAB @ UCMerced04/21/2014
MESA LAB
Review candidate• An Industrial Model Based Disturbance Feedback Control Scheme• Feed-forward-feed-back control of an industrial multicomponent distillation column• Fixed-Point Implementation of a Proximal Newton Method for Embedded Model
Predictive Control• Robust Vertical Plasma Stabilization of the future tungsten divertor configuration of Tore
Supra• Optimal DOB Design for Balancing Input / Output Disturbances Response
– Prof.Weidong Zhang
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-3/1024
MESA LAB
Paper I
• Tray temperature measurements is addressed• model-based nonlinear state-feedback robust control problem is addressed• An output feedback PI temperature controller with dynamic feed-forward set-
point compensation and anti-windup protection
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-5/1024
MESA LAB
Problem description• The n-dimensional open-loop dynamical column system (Luyben, 1990; Baratti et al.,
1998)
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-6/1024
MESA LAB
The controller design
• FF – feed-forward controller
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-8/1024
MESA LAB
The controller design
• OF – output feedback
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-9/1024
MESA LAB
The controller design
• Combine them together
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-10/1024
MESA LAB
Conclusion • Improved the performance of the industrial multicomponent distillation column
by upgrading OF temperature control • The upgrade includes:
– retuning the existing control loop and realizing it in IMC form with anti-windup protection– adding a nearly-linear single-load dynamic temperature set-point compensator which amounts to
a PI loop– accompanying the design with conventional-like tuning guidelines underlain by a robust
stability criterion drawn from advanced control theory– enabling a gradual transition from the old to the new control scheme.
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-12/1024
MESA LAB
Problem description
• The closed loop transfer function
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-14/1024
MESA LAB
The stability condition
04/21/2014 AFC Workshop Series @ MESALAB @ UCMerced
Slide-15/1024
• Consider:
Top Related