Title :
A comparison of simple robust PI design methods: studies on a multivariable system
Author :
Jones, R.W. ; Tham, M.T.
Author_Institution :
Seoul Nat. Univ. of Technol., South Korea
Abstract :
Two simple PID design methods, IMC and GPM, that use robustness as their main design criteria, as opposed to performance, are applied to a multi-loop PI control configuration which is being used to control a multivariable process model against load disturbances. Initially individual loop control designs are tested on the multivariable process. In addition to these studies on the LV multi-loop control configuration decouplers are then be added to try and reduce the control loop interaction. Finally process model mismatch studies are performed.
Keywords :
PI control; control system synthesis; distillation equipment; multivariable control systems; robust control; three-term control; GPM design method; IMC design method; LV multiloop PI control configuration; PI design method; PID design method; control loop interaction; distillation column; gain margin; internal model control; load disturbances; multivariable process model; multivariable process model system; phase margin;
Conference_Titel :
SICE 2004 Annual Conference
Conference_Location :
Sapporo
Print_ISBN :
4-907764-22-7