Tobias K. S. Ritschel
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Peer-reviewed conference publications (38)

2024 (2)

Martinsen, E.S., Filonenko, K., Poulsen, M.H., Møller, J.K., Madsen, H., Rasmussen, J.K., Ritschel, T.K.S., 2024. A Control-oriented Systems Analysis of Gasification in a Flexibly Operated Plastic Waste-to-methanol Plant. In submission.

Tohidi, S.S., Madsen, H., Tsaousoglou, G., Ritschel, T.K.S., 2024. Adaptive Flexibility Function in Smart Energy Systems: A Linearized Price-demand Mapping Approach. arXiv: 2312.03422. Accepted.

2023 (8)

Rosbo, J.W., Ritschel, T.K.S., Hørsholt, S., Jensen, A.D., Jørgensen, J.B., Huusom, J.K., 2023. Optimal Power Distribution in a P2A plant. Computer Aided Chemical Engineering 52, pp. 1777–1782. DOI: 10.1016/B978-0-443-15274-0.50282-1.

Ritschel, T.K.S., 2023. A Newton-like Method based on Model Reduction Techniques for Implicit Numerical Methods. In: Proceedings of the 2023 European Control Conference, June 13-16, Bucharest, Romania. arXiv: 2303.06978. DOI: 10.23919/ECC57647.2023.10178156.

Cantisani, N., Ritschel, T.K.S., Thilker, C.A., Madsen, H., Jørgensen, J.B., 2023. Modeling, Scientific Computing and Optimal Control for Renewable Energy Systems with Storage. In: Proceedings of the 2023 European Control Conference, June 13-16, Bucharest, Romania. arXiv: 2212.08842. DOI: 10.23919/ECC57647.2023.10178226.

Andersen, A.H.D., Zhang, Z., Hørsholt, S., Ritschel, T.K.S., Jørgensen, J.B., 2023. Software principles and concepts applied in the implementation of cyber-physical systems for real-time advanced process control. In: Proceedings of the 2023 European Control Conference, June 13-16, Bucharest, Romania. arXiv: 2302.13595. DOI: 10.23919/ECC57647.2023.10178231.

Ritschel, T.K.S., Reenberg, A.T., Lindkvist, E.B., Laugesen, C., Svensson, J., Ranjan, A.G., Nørgaard, K., Dammann, B., Jørgensen, J.B., 2022. A One-size-fits-all Artificial Pancreas for People with Type 1 Diabetes based on Physiological Insight and Feedback Control. In: Proceedings of the 2023 European Control Conference, June 13-16, Bucharest, Romania. arXiv: 2202.13338. DOI: 10.23919/ECC57647.2023.10178186.

Martinsen, E.S., Rosbo, J.W., Andersen, A.H.D., Ritschel, T.K.S., Hørsholt, S., Huusom, J.K., Jørgensen, J.B., 2023. Modeling and Simulation of a Single Catalytic Fixed Bed in an Ammonia Reactor. In: Proceedings of the 2023 IFAC World Congress, July 9-14, Yokohama, Japan. DOI: 10.1016/j.ifacol.2023.10.497.

Andersen, A.H.D., Ritschel, T.K.S., Hørsholt, S., Huusom, J.K., Jørgensen, J.B., 2023. Model-based Control Algorithms for the Quadruple Tank System: An experimental comparison. In: Proceedings of Foundations of Computer Aided Process Operations / Chemical Process Control 2023 (FOCAPO/CPC), January 8-12, San Antonio, Texas, USA. Accepted. arXiv: 2212.04798.

Nielsen, M.K., Ritschel, T.K.S., Christensen, I., Dragheim, J., Huusom, J.K., Gernaey, K., Jørgensen, J.B., 2023. State Estimation Methods for Continuous-discrete Nonlinear Systems involving Stochastic Differential Equations. In: Proceedings of Foundations of Computer Aided Process Operations / Chemical Process Control 2023 (FOCAPO/CPC), January 8-12, San Antonio, Texas, USA. Accepted. arXiv: 2205.02730.

2022 (8)

Engell, S.E., Aradóttir, T.B., Ritschel, T.K.S., Bengtsson, H., Jørgensen, J.B., 2022. Estimating a Personalized Basal Insulin Dose from Short-term Closed-loop Data in Type 2 Diabetes. In: Proceedings of the 61st IEEE Conference on Decision and Control (CDC), Cancún, Mexico, December 6-9. arXiv: 2211.14149. DOI: 10.1109/CDC51059.2022.9992960.

Ritschel, T.K.S., Reenberg, A.T., Jørgensen, J.B., 2022. Large-scale Virtual Clinical Trials of Closed-loop Treatments for People with Type 1 Diabetes. IFAC-PapersOnLine 55(23), pp. 169–174. arXiv: 2205.01332. DOI: 10.1016/j.ifacol.2023.01.037.

Carstensen, P.E., Bendsen, J., Reenberg, A.T., Ritschel, T.K.S., Jørgensen, J.B., 2022. A Whole-body Multi-scale Mathematical Model for Dynamic Simulation of the Metabolism in Man. IFAC-PapersOnLine 55(23), pp. 58–63. arXiv: 2205.01473. DOI: 10.1016/j.ifacol.2023.01.015.

Reenberg, A.T., Ritschel, T.K.S., Lindkvist, E.B., Laugesen, C., Svensson, J., Ranjan, A.G., Nørgaard, K., Jørgensen, J.B., 2022. Nonlinear Model Predictive Control and System Identification for a Dual-hormone Artificial Pancreas. IFAC-PapersOnLine 55(7), pp. 915–921. arXiv: 2202.13938. DOI: 10.1016/j.ifacol.2022.07.561.

Wahlgreen, M.R., Meyer, K., Ritschel, T.K.S., Engsig-Karup, A.P., Gernaey, K.V., Jørgensen, J.B., 2022. Modeling and Simulation of Upstream and Downstream Processes for Monoclonal Antibody Production. IFAC-PapersOnLine 55(7), pp. 685–690. DOI: 10.1016/j.ifacol.2022.07.523.

Furió-Novejarque, C., Sanz, R., Reenberg, A.T., Ritschel, T.K.S., Ranjan, A.G., Nørgaard, K. and Díez, J.-L., Jørgensen, J.B., Bondia, J., 2022. Assessment of a New Model of Glucagon Action with Glucagon Receptor Dynamics. IFAC-PapersOnLine 55(20), pp. 647–652. DOI: 10.1016/j.ifacol.2022.09.169.

Sauerteig, P., Esterhuizen, W., Wilson, M., Ritschel, T.K.S., Worthmann, K., Streif, S., 2022. Model Predictive Control Tailored to Epidemic Models. In: Proceedings of the 2022 European Control Conference (ECC), pp. 743–748, London, UK, July 12-15. arXiv: 2111.06688v1. DOI: 10.23919/ECC55457.2022.9838589.

Reenberg, A.T., Ritschel, T.K.S., Dammann, B., Jørgensen, J.B., 2022. High-performance Uncertainty Quantification in Large-scale Virtual Clinical Trials of Closed-loop Diabetes Treatment. In: Proceedings of the 2022 American Control Conference (ACC), pp. 1367–1372, Atlanta, Georgia, USA, June 8-10. arXiv: 2202.13927. DOI: ACC53348.2022.9867234.

2021 (2)

Sejersen, M., Boiroux, D., Engell, S.E., Ritschel, T.K.S., Reenberg, A.T., Jørgensen, J.B., 2021. Initial Titration for People with Type 1 Diabetes using an Artificial Pancreas. IFAC-PapersOnLine 54(15), pp. 484–489. DOI: 10.1016/j.ifacol.2021.10.303.

Wahlgreen, M.R., Reenberg, A.T., Nielsen, M.K., Rydahl, A., Ritschel, T.K.S., Dammann, B., Jørgensen, J.B., 2021. A High-performance Monte Carlo Simulation Toolbox for Uncertainty Quantification of Closed-loop Systems. In: Proceedings of the 60th Conference on Decision and Control (CDC), pp. 6755–6761, Austin, Texas, USA. DOI: 10.1109/CDC45484.2021.9682781.

2020 (3)

Ritschel, T.K.S., Boiroux, D., Nielsen, M.K., Huusom, J.K., Jørgensen, S.B., Jørgensen, J.B., 2020. Economic Nonlinear Model Predictive Control of a U-loop Bioreactor. In: Proceedings of the 2020 European Control Conference (ECC), pp. 208–213, Saint Petersburg, Russia, May 12-15. DOI: 10.23919/ECC51009.2020.9143629.

Jørgensen, J.B., Ritschel, T.K.S., Boiroux, D., Schroll-Fleischer, E., Wahlgreen, M.R., Nielsen, M.K., Wu, H., Huusom, J.K., 2020. Simulation of NMPC for a Laboratory Adiabatic CSTR with an Exothermic Reaction. In: Proceedings of the 2020 European Control Conference (ECC), pp. 202–207, Saint Petersburg, Russia, May 12-15. DOI: 10.23919/ECC51009.2020.9143733.

Wahlgreen, M.R., Schroll-Fleischer, E., Boiroux, D., Ritschel, T.K.S., Wu, H., Huusom, J.K., Jørgensen, J.B., 2020. Nonlinear Model Predictive Control for an Exothermic Reaction in an Adiabatic CSTR. IFAC-Papers-OnLine 53(1), pp. 500–505. DOI: 10.1016/j.ifacol.2020.06.084.

2019 (6)

Boiroux, D., Ritschel, T.K.S., Poulsen, N. K., Madsen, H., Jørgensen, J.B., 2019. Efficient Computation of the Continuous-Discrete Extended Kalman Filter Sensitivities Applied to Maximum Likelihood Estimation. In: Proceedings of the 58th IEEE Conference on Decision and Control (CDC), pp. 6983–6988, Nice, France, December 11-13. DOI: 10.1109/CDC40024.2019.9029672.

Reenberg, A.T., Boiroux, D., Ritschel, T.K.S., Jørgensen, J.B., 2019. Model Predictive Control of the Blood Glucose Concentration for Critically Ill Patients in Intensive Care Units. In: Proceedings of the 58th IEEE Conference on Decision and Control (CDC), pp. 3762–3769, Nice, France, December 11-13. DOI: 10.1109/CDC40024.2019.9029651.

Ritschel, T.K.S., Boiroux, D., Nielsen, M.K., Huusom, J.K., Jørgensen, S.B., Jørgensen, J.B., 2019. Economic Optimal Control of a U-loop Bioreactor using Simultaneous Collocation-based Approaches. In: Proceedings of the 3rd IEEE Conference on Control Technology and Applications (CCTA), pp. 933–938, Hong Kong, China, August 19-21. DOI: 10.1109/CCTA.2019.8920479.

Ritschel, T.K.S., Boiroux, D., Nielsen, M.K., Huusom, J.K., Jørgensen, S.B., Jørgensen, J.B., 2019. The Extended Kalman Filter for Nonlinear State Estimation in a U-loop Bioreactor. In: Proceedings of the 3rd IEEE Conference on Control Technology and Applications (CCTA), pp. 920–925, Hong Kong, China, August 19-21. DOI: 10.1109/CCTA.2019.8920643.

Hørsholt, A., Christiansen, L.H., Ritschel, T.K.S., Meyer, K., Huusom, J.K., Jørgensen, J.B., 2019. State and Input Estimation of Nonlinear Chromatographic Processes. In: Proceedings of the 3rd IEEE Conference on Control Technology and Applications (CCTA), pp. 1030–1035, Hong Kong, China, August 19-21. DOI: 10.1109/CCTA.2019.8920651.

Ritschel, T.K.S., Jørgensen, J.B., 2019. Nonlinear Model Predictive Control for Disturbance Rejection in Isoenergetic-isochoric Flash Processes. IFAC-PapersOnLine 52(1), pp. 796–801. DOI: 10.1016/j.ifacol.2019.06.159.

2018 (4)

Ritschel, T.K.S., Jørgensen, J.B., 2018. Nonlinear Filters for State Estimation of UV Flash Processes. In: Proceedings of the 2nd IEEE Conference on Control Technology and Applications (CCTA), pp. 1753–1760, Copenhagen, Denmark, August 21-24. DOI: 10.1109/CCTA.2018.8511532.

Ritschel, T.K.S., Jørgensen, J.B., 2018. The Extended Kalman Filter for State Estimation of Dynamic UV Flash Processes. IFAC-PapersOnLine 51(8), pp. 164–169. DOI: 10.1016/j.ifacol.2018.06.372.

Ritschel, T.K.S., Jørgensen, J.B., 2018. Computation of Phase Equilibrium in Reservoir Simulation and Optimization. IFAC-PapersOnLine 51(8), pp. 94–101. DOI: 10.1016/j.ifacol.2018.06.361.

Ritschel, T.K.S., Jørgensen, J.B., 2018. Production Optimization of a Rigorous Thermal and Compositional Reservoir Flow Model. IFAC-PapersOnLine 51(8), pp. 76–81. DOI: 10.1016/j.ifacol.2018.06.358.

2017 (5)

Ritschel, T.K.S., Capolei, A., Jørgensen, J.B., 2017. The Adjoint Method for Gradient-based Dynamic Optimization of UV Flash Processes. Computer Aided Chemical Engineering 40, pp. 2071–2076. DOI: 10.1016/B978-0-444-63965-3.50347-0.

Drejer, A., Ritschel, T.K.S., Jørgensen, S.B., Jørgensen, J.B., 2017. Economic Optimizing Control for Single-Cell Protein Production in a U-loop Reactor. Computer Aided Chemical Engineering 40, pp. 1759–1764. DOI: 10.1016/B978-0-444-63965-3.50295-6.

Gaspar, J., Ritschel, T.K.S., Jørgensen, J.B., 2017. An Efficient and Rigorous Thermodynamic Library and Optimal-control of a Cryogenic Air Separation Unit. Computer Aided Chemical Engineering 40, pp. 1543–1548. DOI: 10.1016/B978-0-444-63965-3.50259-2.

Ritschel, T.K.S., Gaspar, J., Jørgensen, J.B., 2017. A Thermodynamic Library for Simulation and Optimization of Dynamic Processes. IFAC-PapersOnLine 50(1), pp. 3542–3547. DOI: 10.1016/j.ifacol.2017.08.951.

Ritschel, T.K.S., Capolei, A., Jørgensen, J.B., 2017. Dynamic Optimization of UV Flash Processes. In: Proceedings of Foundations of Computer Aided Process Operations / Chemical Process Control 2017 (FOCAPO/CPC), January 8-12, Tucson, Arizona, USA. Link.

Additional conference publications (2)

2019 (1)

Mahmoudi, Z., Boiroux, D., Ritschel, T.K.S., Jørgensen, J.B., 2019. Filtering and Prediction of the Blood Glucose Concentration using an Android Smart Phone and a Continuous Glucose Monitor. arXiv: 1908.10234v1.

2018 (1)

Ritschel, T.K.S., Jørgensen, J.B., 2018. Production Optimization of Thermodynamically Rigorous Isothermal and Compositional Models. In: Proceedings of the 16th European Conference on the Mathematics of Oil Recovery (ECMOR), pp. 1–13, September 3-6, Barcelona, Spain. DOI: 10.3997/2214-4609.201802112.