This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
2009 WRI World Congress on Computer Science and Information Engineering
An Intelligent Decoupling Control Scheme for Vacuum Casting Process
Los Angeles, California USA
March 31-April 02
ISBN: 978-0-7695-3507-4
The vacuum casting process, which has strong ability to produce thin wall and transparent parts, is time variable, nonlinear and strong-coupled. In order to control the vacuum casting process effectively, the intelligent decoupling control scheme that uses artificial neural networks (ANNs) embedded within internal model control (IMC) structure is employed. By using artificial neural networks trained based on inputs/outputs data which were taken from experiment, the process model which can descript the relation between the key process variables and the machine variables is firstly developed. Then the decoupling controller is derived based on the error between the outputs of process and the model. As a result, the system set-point tracking response is well decoupled from the system disturbance rejection response. Since there is an open-loop control for the nominal set-point tracking, the nominal system stability can be easily identified. At the same time, the system is robust because of the employed internal control structure.
Citation:
Yuanyuan Liu, Qingxi Hu, "An Intelligent Decoupling Control Scheme for Vacuum Casting Process," csie, vol. 5, pp.42-45, 2009 WRI World Congress on Computer Science and Information Engineering, 2009
Usage of this product signifies your acceptance of the Terms of Use.