Publications  [back]
   Journal Articles
  1. Constantinescu, E. M.; Zavala, V. M.; Rocklin, M.; Lee, S.; and Anitescu, M.  A Computational Framework for Uncertainty Quantification and Stochastic Optimization in Unit Commitment with Wind Power Generation. Submitted to IEEE Transactions on Power Systems, 2009. [pdf]
  2. Zavala, V. M. Stability Analysis of an Approximate Scheme for Moving Horizon Estimation.  Submitted to Comp. Chem. Eng., 2009. [pdf]
  3. Zavala, V. M.; and Anitescu, M. On-Line Nonlinear Programming as a Generalized Equation.  Submitted to SIAM J. Control and Optimization, 2009. [pdf]
  4. Zavala, V. M.; Constantinescu, E. M.; Krause, T.; and Anitescu, M.  On-Line Economic Optimization of Energy Systems Using Weather Forecast Information. Journal of Process Control, In Press, 2009. [pdf]
  5. Zavala, V. M.; and Biegler, L.T. Optimization-Based Strategies for the Operation of Low-Density Polyethylene Tubular Reactors:  Nonlinear Model Predictive Control. Comp. Chem. Eng., 33(10), pp. 1735-1746, 2009. [pdf]
  6. Huang, R.; Zavala, V. M.; and Biegler, L.T. Advanced Step Nonlinear Model Predictive Control for Air Separation Units.  Journal of Process Control, 19 (4), pp. 678-685, 2009. [pdf]
  7. Biegler, L.T.; and Zavala V.M. Large-Scale Nonlinear Programming with IPOPT: An Integrating Framework for Enterprise-Wide Optimization. Comp.Chem.Eng. 33(3), pp. 575-582, 2009. [pdf].
  8. Zavala, V. M.; and Biegler, L.T. Optimization-Based Strategies for the Operation of Low-Density Polyethylene Tubular Reactors: Moving Horizon Estimation. Comp.Chem.Eng. 33(1), pp. 379-390, 2009. [pdf]
  9. Zavala, V. M.; and Biegler, L.T. The Advanced Step NMPC Controller: Optimality, Stability and Robustness. Automatica, 45(1), pp. 86-93, 2009. [pdf].
  10. Zavala V.M.; Laird, C.D. and Biegler, L.T. A Fast Moving Horizon Estimation Algorithm Based on Nonlinear Programming Sensitivity. Journal of Process Control, 18 (9), pp. 876-884, 2008. [pdf].
  11. Zavala, V. M.; Laird, C.D. and Biegler, L.T. Interior-Point Point Decomposition Approaches for Parallel Solution of Large-Scale Nonlinear Parameter Estimation Problems. Chem. Eng. Sci. 63 (19), pp. 4834-4845, 2008. [pdf]. 
  12. Zavala, V. M.; Laird, C.D. and Biegler, L.T. Fast Implementations and Rigorous Models: Can Both be Accommodated in NMPC?. Int. J. Robust Nonlinear Control. 18 (8), pp.800-815, 2008 [pdf]. 
  13. Zavala, V. M. and Biegler, L.T. Large-Scale Parameter Estimation in Low-Density Polyethylene Tubular  Reactors. Ind.Eng.Chem. Res. 45 (23),  pp. 7867 -7881, 2006 [pdf].
  14. Zavala, V. M.;  Flores-Tlacuahuac, A. and Vivaldo-Lima, E. The Bifurcation Behavior of a Polyurethane Continuous Stirred Tank Reactor. Chem. Eng. Sci.  61 (22),  pp. 7368-7385, 2006 [pdf]. 
  15. Zavala, V. M.;  Flores-Tlacuahuac, A. and Vivaldo-Lima, E. Dynamic Optimization of a Semi-Batch Reactor for Polyurethane Production. Chem. Eng. Sci.  60 (11),  pp. 3061-3079, 2005 [pdf].  
  16. Flores-Tlacuahuac, A.;  Zavala, V. M. and  Saldivar-Guerra E. Complex Nonlinear Behavior in the Full-Scale High-Impact Polystyrene Process. Ind.Eng.Chem. Res. 44 (8), pp. 2802-2814, 2005 [pdf]
  Book Chapters
  • Zavala, V. M.; and Biegler, L.T. Nonlinear Programming Strategies for State Estimation and Model Predictive Control. In Nonlinear Model Predictive Control, pp. 419-432,  Springer-Verlag, Berlin, 2009. [pdf]
  Conference Articles
  1. Zavala, V. M.;  Constantinescu, E.M. and Anitescu, M.  Economic Impacts of Advanced Weather Forecasting on Energy System Operations. IEEE PES Conference on Innovative Smart Grid Technologies, 2010. [pdf]
  2. Zavala, V. M.;  Anitescu, M.; and Krause, T.  On the Optimal On-Line Management of Photovoltaic-Hydrogen Hybrid Energy Systems. 10th International Symposium on Process Systems Engineering, 2009. [pdf]
  3. Zavala, V. M.; Huang, R. and Biegler, L.T. Simultaneous Nonlinear Programming Strategies for Nonlinear Model Predictive Control Applications: Recent Advances and Future Directions. Proceedings of FOCAPO, 2008. 
  4. Zavala, V. M.; and Biegler, L.T. The Advanced Step NMPC Controller. Proceedings of the IEEE Workshop on Advanced Process Control Applications for Industry - Vancouver, Canada. 2007
  5. Zavala, V. M.; Laird, C.D. and Biegler, L.T. A Fast Computational Framework for Large-Scale Moving Horizon Estimation. Proceedings of the 8th International Symposium on Dynamics  and Control of Process Systems - Cancun, Mexico. 2007 [pdf].
  6. Zavala, V. M.; Laird, C.D. and Biegler, L.T. Fast Solvers and Rigorous Models: Can Both be Accommodated in NMPC?. Proceedings of the IFAC Workshop on NMPC for Fast Systems - Grenoble, France.  2006.  [pdf].

Technical Reports

  • Zavala, V. M.; Constantinescu, E. M.; Krause, T.; and Anitescu, M.  Weather Forecast-Based Optimization of Integrated Energy Systems. Argonne National Laboratory, ANL/MCS-TM-305,  2009. [pdf]
  • Constantinescu, E. M.; Zavala, V. M.; Rocklin, M.; Lee, S.; and Anitescu, M.  Unit Commitment with Wind Power Generation: Integrating Wind Forecast Uncertainty and Stochastic Programming. Argonne National Laboratory,  ANL/MCS-TM-309,  2009. [pdf]

  Thesis

  • Zavala, V. M. Computational Strategies for the Optimal Operation of Large-Scale Chemical Processes.  PhD Thesis, Carnegie Mellon University, 2008 [pdf]. 

  Presentations

  • Optimizacion de Sistemas Energeticos Basada en Predicciones Metereologicas.  UAEM - Cuernavaca, Mexico.  2009.
  • Weather Forecast-Based Optimization of Integrated Energy Systems. University of Wisconsin, Madison - Madison, WI.  2009.
  • Nonlinear Programming for Feedback Control. MCS Seminar Argonne National Laboratory - Argonne, IL. 2008.
  • Applications of Economics-Oriented Feedback Control Technology. GE Global Research -  Niskayuna, NY. 2008.
  • Advances and Future Directions in Optimization-Based Process Operations. PSE Workshop Universidad Iberoamericana -  Mexico City, Mexico. 2008.
  • Optimization-Based Strategies for the Operation of Low-Density Polyethylene Tubular Reactors. AIChE Meeting -  Philadelphia, PA. 2008. 
  • Nonlinear Programming Strategies for State Estimation and Model Predictive Control. Assessment and Future Directions of Nonlinear Model Predictive Control -  Pavia, Italy. 2008. [pdf]
  • Large-Scale Optimization-Based Strategies for the Operation of Low-Density Polyethylene Tubular Reactors. ESCAPE 18 - Lyon, France. 2008.
  • Frameworks for On-Line Direct Transcription. SIAM  Conference on Optimization - Boston, MA. 2008. [pdf]
  • Stability and Performance Analysis of NLP Sensitivity-Based NMPC Controllers. AIChE Meeting - Salt Lake City, Utah. 2007. [pdf]
  • A Moving Horizon Estimation Algorithm Based on NLP Sensitivity. AIChE Meeting - Salt Lake City, Utah. 2007. [pdf]
  • Efficient Parallel Solution of DAE Constrained Optimization Problems with Loosely Coupled Algebraic Components. AIChE Meeting - Salt Lake City, Utah. 2007.
  • A Sensitivity-Based Barrier Strategy for Nonlinear Model Predictive Control. International Congress of Industrial and Applied Mathematics - Zurich, Switzerland. 2007.
  • A Fast Computational Framework for Large-Scale Moving Horizon Estimation. 8th International Symposium on Dynamics and Control of Process systems - Cancun, Mexico. 2007 [pdf].
  • Sensitivity-Based NMPC with Delayed Optimization.  NMPC- SOFAP  Workshop - Loughborough, UK. 2007.
  • Parallel Solution of Large-Scale Nonlinear Parameter Estimation Problems with IPOPT.  SIAM Meeting on Computational Science and Engineering - Costa Mesa, CA. 2007.
  • Simultaneous Nonlinear Programming Strategies for NMPC Applications. OPTEC Seminar - Leuven, Belgium. 2006.
  • A Fast and Efficient Computational Framework for Large-Scale NMPC. AIChE Meeting - San Francisco, CA. 2006 [pdf].
  • Large-Scale Nonlinear Parameter Estimation with IPOPT. INFORMS Meeting - Pittsburgh, PA. 2006 [pdf].
  • Warm-Starting Strategies for Interior-Point Methods. PSE Seminar - Pittsburgh, PA. 2006 [pdf].
  • Simultaneous Large-Scale Parameter Estimation in Tubular Polymerization Reactors. AIChE Meeting - Cinccinnati, OH. 2005.
  • Mathematical Modeling of High-Pressure Ethylene Polymerization Reactors. PSE Seminar - Pittsburgh, PA. 2005 [pdf].