A SYSTEM FOR DISSOLVED OXYGEN CONTROL IN INDUSTRIAL AERATION TANK
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| Title | A SYSTEM FOR DISSOLVED OXYGEN CONTROL IN INDUSTRIAL AERATION TANK |
| Authors | |
| Abstract | The control system is developed for accurate set-point control of dissolved oxygen concentration in industrial aeration tank based on adaptation of PI controller to time-varying dynamics of the controlled process. The controller adaptation algorithm refers to the process state model-based transfer function that follows changes in process dynamics by updating the function parameters with on-line measurements of process variables, and the controller tuning rules developed for typical structure transfer function models.The control system was investigated via computer simulation of the dissolved oxygen concentration set-point control in an industrial aeration tank under process disturbances and set-point step changes. The control system demonstrates fast adaptation of PI controller parameters and noticeably higher accuracy control compared to that of ordinary fixed gain PI controller.DOI: http://dx.doi.org/10.5755/j01.itc.41.1.921 |
| Publisher | Kaunas University of Technology |
| Date | 2012-04-24 |
| Source | Informacinės technologijos ir valdymas Vol 41, No 1 (2012) |
| Rights | Copyright terms are indicated in the Republic of Lithuania Law on Copyright and Related Rights, Articles 4-37. |