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MISO structure based control-relevant identification of MIMO systems

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Title MISO structure based control-relevant identification of MIMO systems
 
Creator SHREESHA, C
GUDI, RD
 
Subject mimo systems
mathematical models
frequency response
identification
 
Description The prefilter based open loop control-relevant identification scheme proposed for single input single output (SISO) systems by D.E. Rivera et al. (1992) is extended for multi input multi output (MIMO) systems using a multi input single output (MISO) structural framework. By selecting input output pair for control, the MIMO system is partitioned into individual SISO systems with the interacting branches acting on each SISO loop being treated as structured measured disturbances (in addition to the regular disturbance at each output). With this consideration, a methodology is proposed for design of separate prefilters for the individual channels, taking into account the performance specifications for each loop. The use of an uncorrelated set of inputs is proposed for obtaining accurate estimation of individual channel elements. The prefiltering for each individual loop has been shown to give good estimates of the control-relevant model for the direct as well as the interacting branches. Closed loop simulations, using decoupled internal model controllers, involving representative processes taken from the literature demonstrate the validity of the approach.
 
Publisher IEEE
 
Date 2009-03-04T11:39:13Z
2011-11-28T07:37:33Z
2011-12-15T09:57:08Z
2009-03-04T11:39:13Z
2011-11-28T07:37:33Z
2011-12-15T09:57:08Z
2001
 
Type Article
 
Identifier Proceedings of the American Control Conference (V 2), Arlington, USA, 25-27 June 2001, 1184-1189
0-7803-6495-3
10.1109/ACC.2001.945882
http://hdl.handle.net/10054/858
http://dspace.library.iitb.ac.in/xmlui/handle/10054/858
 
Language en