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SUMMARY:Model-based temperature control of a diesel oxidation catalyst
DTSTART:20120504T101500
DTEND:20120504T111500
DTSTAMP:20261005T011502Z
UID:575c91ad092a4ba6e061c52dab6073bbe87eb023bbf0f5268fb4cf0b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Y Creff\, Institut Francais du Petrole - Energies Nouvelle
 s\, France.\nhttp://www.ifpenergiesnouvelles.com/\nThe presentation deals 
 with the control of the outlet temperature of a DOC (Diesel Oxidation Cata
 lyst)\, used in diesel vehicles as a heat supplier to regenerate the parti
 culate filters. The DOC is commonly modeled as a complex distributed param
 eter system\, involving an energy balance and several mass balances. Such 
 models are not suited for control purposes. It is first shown how a contro
 l model can be derived\, mainly through a drastic simplification of the ma
 ss balances\, and thanks to an equivalence between advection-transfer syst
 ems and advection-diffusion systems. This model correctly reproduces the o
 utlet temperature response to changes in the input variables (the control 
 variable -inlet hydrocarbons-\, as well as the disturbances -inlet tempera
 ture and gas velocity). Then\, the control approach is presented. Rejectin
 g the inlet temperature variations is achieved by synchronization\, as sug
 gested by properties of the advection-diffusion systems. Besides\, it is s
 hown that\, although the gas velocity variations cannot be totally compens
 ated for\, it is possible to limit their effect by a suited gain schedulin
 g. Experimental results show the relevance of the proposed approach.
LOCATION:ME C2 405
STATUS:CONFIRMED
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