A Novel Technique for PID Tuning by Linearized Biogeography-Based Optimization

2014 ◽  
Author(s):  
T.A. Boghdady ◽  
M.M. Sayed ◽  
A.M. Emam ◽  
E.E. Abu El-Zahab
Keyword(s):  
Pid Tuning ◽  
Novel Technique

Novel Technique Preserves Flow After Aneurysm Repair

2011 ◽  
Vol 9 (3) ◽  
pp. 20
Author(s):  
MITCHEL L. ZOLER
Keyword(s):  
Novel Technique ◽  
Aneurysm Repair

A Novel Technique for Tailoring Frontal Osteoplastic Flaps Using the ENT Magnetic Navigation System

2012 ◽  
Vol 73 (S 02) ◽  
Author(s):  
L. Volpi ◽  
A. Pistochini ◽  
M. Turri-Zanoni ◽  
F. Meloni ◽  
M. Bignami ◽  
...  
Keyword(s):  
Navigation System ◽  
Magnetic Navigation ◽  
Novel Technique

Composite Reverse Septal Flap Following Subtotal Septectomy: A Novel Technique for Re-establishing Tip Support Following Oncologic Resection

2020 ◽  
Author(s):  
Stephen Hernandez ◽  
Griffin Santarelli ◽  
Adam Kimple ◽  
Charles Ebert ◽  
Brian Thorp ◽  
...  
Keyword(s):  
Novel Technique ◽  
Oncologic Resection

Development of a Jacobian Module for Advanced Pulp and Paper Simulation and Control

TAPPI Journal ◽  
2009 ◽  
Vol 8 (1) ◽  
pp. 4-11
Author(s):  
MOHAMED CHBEL ◽  
LUC LAPERRIÈRE
Keyword(s):  
Control System ◽  
Nonlinear Behavior ◽  
Simulation Software ◽  
Pulp And Paper ◽  
Pid Controllers ◽  
Tuning Parameters ◽  
Pid Tuning ◽  
Fixed Set ◽  
And Control ◽  
Operating Points

Pulp and paper processes frequently present nonlinear behavior, which means that process dynam-ics change with the operating points. These nonlinearities can challenge process control. PID controllers are the most popular controllers because they are simple and robust. However, a fixed set of PID tuning parameters is gen-erally not sufficient to optimize control of the process. Problems related to nonlinearities such as sluggish or oscilla-tory response can arise in different operating regions. Gain scheduling is a potential solution. In processes with mul-tiple control objectives, the control strategy must further evaluate loop interactions to decide on the pairing of manipulated and controlled variables that minimize the effect of such interactions and hence, optimize controller’s performance and stability. Using the CADSIM Plus™ commercial simulation software, we developed a Jacobian sim-ulation module that enables automatic bumps on the manipulated variables to calculate process gains at different operating points. These gains can be used in controller tuning. The module also enables the control system designer to evaluate loop interactions in a multivariable control system by calculating the Relative Gain Array (RGA) matrix, of which the Jacobian is an essential part.

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