The Extended Kalman Filter for State Estimation of Dynamic UV Flash Processes

Tobias Kasper Skovborg Ritschel*, John Bagterp Jørgensen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

We present an extended Kalman filter for state estimation of semi-explicit index-1 differential-algebraic equations. It is natural to model dynamic UV flash processes with such differential-algebraic equations. The UV flash is a mathematical statement of the second law of thermodynamics. It is therefore important to thermodynamically rigorous models of many phase equilibrium processes. State estimation of UV flash processes has applications in control, prediction, monitoring, and fault detection of chemical processes in the oil and gas industry, e.g. separation, distillation, drilling of oil wells, multiphase flow in oil pipes, and oil production. We present a numerical example of a UV flash separation process. It involves soft sensing of vapor-liquid compositions based on temperature and pressure measurements.
Original languageEnglish
Book seriesI F A C Workshop Series
Volume51
Issue number8
Pages (from-to)164-169
ISSN1474-6670
DOIs
Publication statusPublished - 2018
Event3rd IFAC Workshop on Automatic Control in Offshore Oil and Gas Production - Aalborg University, Esbjerg , Esbjerg, Denmark
Duration: 30 May 20181 Jun 2018

Conference

Conference3rd IFAC Workshop on Automatic Control in Offshore Oil and Gas Production
LocationAalborg University, Esbjerg
Country/TerritoryDenmark
CityEsbjerg
Period30/05/201801/06/2018

Keywords

  • Extended Kalman filter
  • State estimation
  • UV flash
  • Differential-algebraic equations

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