Control Design for a Bilinear System. Reachable Sets and Exact Linearization
Författare
Summary, in English
A bilinear system model of a continuous tank reactor from a biotechnology application (F. Mandenius et al., 1987) is studied. The concentrations of the substrate sugar and the product ethanol were measured on-line and utilized to control the flow-rate through the fermenter. The system can be integrated analytically making it possible to describe the reachable sets. Limited controllability is found on a line in the state space. These reachable set expressions are used to obtain a time-optimal controller that for large disturbances implies reversed control action as compared to linear control. Transformations used when applying exact linearization are described. The lack of controllability, also obtained using the Lie brackets of differential geometry, shows up as singularities in the transformations.
Avdelning/ar
Publiceringsår
1990
Språk
Engelska
Dokumenttyp
Konferensbidrag
Ämne
- Control Engineering
Nyckelord
- reversed control action
- Lie brackets
- differential geometry
- control system synthesis
- fermentation
- linear syste
- bilinear system reachable sets
- exact linearization
- continuous tank reactor
- fermenter
- reachable set expressions
- time-optimal controller
Conference name
29th IEEE Conference on Decision and Control, 1990
Conference date
1990-12-05 - 1990-12-07
Conference place
Honolulu, Hawaii, United States
Status
Published