Rudy Agustriyanto - Control Structure Selection for the ALSTOM Gasifier Plant Considering Model Plant Mismatches

Version 1

      Publication Details (including relevant citation   information):

      Control Engineering of China , Vol 16, No.2, 2009,   PP168-173


      Relative disturbance gain array (RDGA) is a very useful tool   for  assessing the disturbance rejection capability of   decentralised control  structures. However, the values of   RDGA are affected by model  uncertain-ties. An optimization   based method for determining RDGA ranges  for systems with   model uncertainties is pres-ented. And the method is    applied to the control structure selection for the ALSTOM   Gasifier  benchmark prob-lem. Reduced order linear process   and disturbance models  of the gasifier are identified from   simulated plant operating data using  the output error   system identification method. Several models are  identified   under different operating conditions and model uncertainty    bounds are obtained from those models. The generalized   relative  disturbance gain ranges of the ALSTOM gasifier   under model uncertainty  are calculated and used in   selecting robust decentralized control  structure.

      Address (URL): LSTOM_Gasifie.htm