Torsten Wik

Professor vid Reglerteknik

Torsten Wik är professor i reglerteknik och leder forskargruppen Reglerteknik. Hans forskning och undervisning fokuserar främst på processreglering, såväl med metoder och teoretiska aspekter som med direkta tillämpningar. Metodmässigt är intresset särskilt inriktat på optimal reglering, modellreduktion och system med modellosäkerheter. Tillämpningarna är i regel energibesparande, miljöförbättrande och biologiska system såsom vattenreningsprocesser, recirkulerande fiskodlingar och LED-belysning i växthus. Under senare år har tillämpningarna framförallt varit fokuserade på estimering, modellering och styrning av batterier.

Källa: chalmers.se
Image of Torsten Wik

Visar 176 publikationer

2024

Nonlinear Model Inversion-Based Output Tracking Control for Battery Fast Charging

Yang Li, Torsten Wik, Yicun Huang et al
IEEE Transactions on Control Systems Technology. Vol. 32 (1), p. 225-240
Artikel i vetenskaplig tidskrift
2024

Hypergraph-Based Unified Model Development for Active Battery Equalization Systems

Quan Ouyang, Nourallah Ghaeminezhad, Yang Li et al
Proceedings of the American Control Conference, p. 2218-2223
Paper i proceeding
2024

Control-Oriented 2D Thermal Modelling of Cylindrical Battery Cells for Optimal Tab and Surface Cooling

Godwin Peprah, Torsten Wik, Yicun Huang et al
Proceedings of the American Control Conference, p. 4651-4656
Paper i proceeding
2024

A Unified Model for Active Battery Equalization Systems

Quan Ouyang, Nourallah Ghaeminezhad, Yang Li et al
IEEE Transactions on Control Systems Technology. Vol. In Press
Artikel i vetenskaplig tidskrift
2024

Model optimization of a high-power commercial PEMFC system via an improved grey wolf optimization method

Hongxu Zhou, Xiaohua Wu, Yang Li et al
Fuel. Vol. 357 (Part A)
Artikel i vetenskaplig tidskrift
2024

State of health estimation for lithium-ion batteries under arbitrary usage using data-driven multi-model fusion

Yizhou Zhang, Torsten Wik, John Bergström et al
IEEE Transactions on Transportation Electrification. Vol. 10 (1), p. 1494-1507
Artikel i vetenskaplig tidskrift
2024

Automatic Generation of Examinations in the Automatic Control Courses: Decision Support Matlab/LATEX Toolkit for Stepwise Constructive Alignment

Alexander Stotsky, Torsten Wik
IFAC-PapersOnLine. Vol. 58 (16), p. 47-52
Paper i proceeding
2024

Battery capacity knee-onset identification and early prediction using degradation curvature

Huang Zhang, Faisal Altaf, Torsten Wik
Journal of Power Sources. Vol. 608
Artikel i vetenskaplig tidskrift
2024

Machine learning-based lifelong estimation of lithium plating potential: A path to health-aware fastest battery charging

Yizhou Zhang, Torsten Wik, John Bergström et al
Energy Storage Materials
Artikel i vetenskaplig tidskrift
2024

Predicting Electric Vehicle Energy Consumption from Field Data Using Machine Learning

Qingbo Zhu, Yicun Huang, Chih Feng Lee et al
IEEE Transactions on Transportation Electrification. Vol. In Press
Artikel i vetenskaplig tidskrift
2024

Safety margin for Li-plating-free fast-charging of Li-ion batteries considering parameter uncertainty

Yao Cai, Yang Li, Torsten Wik
2024 IEEE Conference on Control Technology and Applications, CCTA 2024, p. 722-728
Paper i proceeding
2024

Metagenomics reveal the potential for geosmin and 2-methylisoborneol production across multiple bacterial phyla in recirculating aquaculture systems

Dan Zheng, Britt-Marie Wilen, Ola Öberg et al
Environmental Microbiology. Vol. 26 (10)
Artikel i vetenskaplig tidskrift
2024

Scenario-Aware Machine Learning Pipeline for Battery Lifetime Prediction

Huang Zhang, Faisal Altaf, Torsten Wik
2024 European Control Conference, ECC 2024, p. 212-217
Paper i proceeding
2024

MINN: Learning the dynamics of differential-algebraic equations and application to battery modeling

Yicun Huang, Changfu Zou, Yang Li et al
IEEE Transactions on Pattern Analysis and Machine Intelligence. Vol. 46 (12), p. 11331-11344
Artikel i vetenskaplig tidskrift
2024

Synthetic dataset of LG M50 batteries with different degradation pathways

Huang Zhang, Faisal Altaf, Torsten Wik
Data in Brief. Vol. 57
Artikel i vetenskaplig tidskrift
2023

Comparative Analysis of Battery Cycle Life Early Prediction Using Machine Learning Pipeline

Huang Zhang, Faisal Altaf, Torsten Wik et al
IFAC-PapersOnLine. Vol. 56 (2), p. 3757-3763
Paper i proceeding
2023

Early prediction of battery life by learning from both time-series and histogram data

Yizhou Zhang, Torsten Wik, Yicun Huang et al
IFAC Proceedings Volumes (IFAC-PapersOnline). Vol. 56 (2), p. 3770-3775
Paper i proceeding
2023

An Overview of Biogas Plants in Ethiopia and Sweden: What Ethiopia Can Learn from Sweden

Bethlehem Abera, Torsten Wik, Getachew Bekele et al
2023 IEEE PES/IAS PowerAfrica, PowerAfrica 2023
Paper i proceeding
2023

Analysis of Potential Lifetime Extension Through Dynamic Battery Reconfiguration

Albert Skegro, Changfu Zou, Torsten Wik
The 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe
Paper i proceeding
2023

Optimization-free fast charging for lithium-ion batteries using model inversion techniques

Yang Li, Torsten Wik, Yicun Huang et al
IFAC-PapersOnLine. Vol. 56 (2), p. 6636-6641
Paper i proceeding
2023

Interpretable Battery Cycle Life Range Prediction Using Early Cell Degradation Data

Huang Zhang, Yang Su, Faisal Altaf et al
IEEE Transactions on Transportation Electrification. Vol. 9 (2), p. 2669-2682
Artikel i vetenskaplig tidskrift
2023

Practical battery state of health estimation using data-driven multi-model fusion

Yizhou Zhang, Torsten Wik, John Bergström et al
IFAC Proceedings Volumes (IFAC-PapersOnline). Vol. 56 (2), p. 3776-3781
Paper i proceeding
2022

Combining offline and online machine learning to estimate state of health of lithium-ion batteries

Chengqi She, Yang Li, Torsten Wik et al
2022 European Control Conference, ECC 2022, p. 608-613
Paper i proceeding
2022

State of Power Prediction for Battery Systems with Parallel-Connected Units

Weiji Han, Faisal Altaf, Changfu Zou et al
IEEE Transactions on Transportation Electrification. Vol. 8 (1), p. 925-935
Artikel i vetenskaplig tidskrift
2022

Offline and Online Blended Machine Learning for Lithium-Ion Battery Health State Estimation

Chengqi She, Yang Li, Changfu Zou et al
IEEE Transactions on Transportation Electrification. Vol. 8 (2), p. 1604-1618
Artikel i vetenskaplig tidskrift
2022

Analysis and Estimation of the Maximum Switch Current during Battery System Reconfiguration

Weiji Han, Anton Kersten, Changfu Zou et al
IEEE Transactions on Industrial Electronics. Vol. 69 (6), p. 5931-5941
Artikel i vetenskaplig tidskrift
2022

Sensitivity Analysis of the Battery System State of Power

Weiji Han, Faisal Altaf, Changfu Zou et al
IEEE Transactions on Transportation Electrification. Vol. 8 (1), p. 976-989
Artikel i vetenskaplig tidskrift
2022

Fast Charging Control of Lithium-Ion Batteries: Effects of Input, Model, and Parameter Uncertainties

Yao Cai, Changfu Zou, Yang Li et al
2022 European Control Conference, ECC 2022, p. 1647-1653
Paper i proceeding
2022

Stochastic optimal control over unreliable communication links

Fredrik Bengtsson, Torsten Wik
Automatica. Vol. 142
Artikel i vetenskaplig tidskrift
2022

Control-Oriented Modeling of All-Solid-State Batteries Using Physics-Based Equivalent Circuits

Yang Li, Torsten Wik, Changjun Xie et al
IEEE Transactions on Transportation Electrification. Vol. 8 (2), p. 2080-2092
Artikel i vetenskaplig tidskrift
2022

Resolving issues of scaling for gramian-based input–output pairing methods

Fredrik Bengtsson, Torsten Wik, Elin Svensson
International Journal of Control. Vol. 95 (3), p. 679-691
Artikel i vetenskaplig tidskrift
2022

A PDE Model Simplification Framework for All-Solid-State Batteries

Yang Li, Torsten Wik, Yicun Huang et al
American Control Conference. Vol. 2022-June, p. 1775-1781
Paper i proceeding
2022

A machine learning-based framework for online prediction of battery ageing trajectory and lifetime using histogram data

Yizhou Zhang, Torsten Wik, John Bergström et al
Journal of Power Sources. Vol. 526
Artikel i vetenskaplig tidskrift
2021

On the modeling of pulp properties in CTMP processes

Fredrik Bengtsson, Anders Karlström, Torsten Wik
Nordic Pulp and Paper Research Journal. Vol. 36 (2), p. 234-248
Artikel i vetenskaplig tidskrift
2021

Predictive energy management of hybrid electric vehicles via multi-layer control

Maryam Razi, Nikolce Murgovski, Tomas McKelvey et al
IEEE Transactions on Vehicular Technology. Vol. 70 (7), p. 6485-6499
Artikel i vetenskaplig tidskrift
2021

Finding feedforward configurations using gramian based interaction measures

Fredrik Bengtsson, Torsten Wik
Modeling, Identification and Control. Vol. 42 (1), p. 27-35
Artikel i vetenskaplig tidskrift
2021

Design and comparative analyses of optimal feedback controllers for hybrid electric vehicles

Maryam Razi, Nikolce Murgovski, Tomas McKelvey et al
IEEE Transactions on Vehicular Technology. Vol. 70 (4), p. 2979-2993
Artikel i vetenskaplig tidskrift
2021

Electrochemical Model-Based Fast Charging: Physical Constraint-Triggered PI Control

Yang Li, D. Mahinda Vilathgamuwa, Evelina Wikner et al
IEEE Transactions on Energy Conversion. Vol. 36 (4), p. 3208-3220
Artikel i vetenskaplig tidskrift
2021

Stress Detection Using Proximal Sensing of Chlorophyll Fluorescence on the Canopy Level

Linnéa Ahlman, Daniel Bånkestad, Sammar Khalil et al
AgriEngineering. Vol. 3 (3), p. 648-668
Artikel i vetenskaplig tidskrift
2020

Run-to-Run Control for Active Balancing of Lithium Iron Phosphate Battery Packs

Xiaopeng Tang, Changfu Zou, Torsten Wik et al
IEEE Transactions on Power Electronics. Vol. 35 (2), p. 1499-1512
Artikel i vetenskaplig tidskrift
2020

A comparison of topologies in recirculating aquaculture systems using simulation and optimization

Simon Pedersen, Torsten Wik
Aquacultural Engineering. Vol. 89
Artikel i vetenskaplig tidskrift
2020

Modeling of tensile index using uncertain data sets

Fredrik Bengtsson, Anders Karlström, Torsten Wik
Nordic Pulp and Paper Research Journal. Vol. 35 (2), p. 231-242
Artikel i vetenskaplig tidskrift
2020

Next-Generation Battery Management Systems: Dynamic Reconfiguration

Weiji Han, Torsten Wik, Anton Kersten et al
IEEE Industrial Electronics Magazine. Vol. 14 (4), p. 20-31
Artikel i vetenskaplig tidskrift
2019

Near-Fastest Battery Balancing by Cell/Module Reconfiguration

Weiji Han, Changfu Zou, Liang Zhang et al
IEEE Transactions on Smart Grid. Vol. 10 (6), p. 6954-6964
Artikel i vetenskaplig tidskrift
2019

Convex Identification of Minimal Function Bases for Cylinder Pressure by Using Pressure Values as Basis Weights

Marcus Hedegärd, Torsten Wik, Krister Fredriksson et al
IEEE Transactions on Control Systems Technology. Vol. 27 (1), p. 346-354
Artikel i vetenskaplig tidskrift
2019

Ideal benefits of exceeding fixed voltage limits on lithium-ion batteries with increasing cycle age

Lukas Wikander, Bjorn Fridholm, Sebastien Gros et al
Journal of Power Sources. Vol. 441
Artikel i vetenskaplig tidskrift
2019

Kalman filter for adaptive learning of two-dimensional look-up tables applied to OCV-curves for aged battery cells

Anton Klintberg, Changfu Zou, B. Fridholm et al
Control Engineering Practice. Vol. 84, p. 230-237
Artikel i vetenskaplig tidskrift
2019

Load-responsive model switching estimation for state of charge of lithium-ion batteries

Xiaopeng Tang, Furong Gao, Changfu Zou et al
Applied Energy. Vol. 238, p. 423-434
Artikel i vetenskaplig tidskrift
2018

A review of fractional-order techniques applied to lithium-ion batteries, lead-acid batteries, and supercapacitors

Changfu Zou, Lei Zhang, Xiaosong Hu et al
Journal of Power Sources. Vol. 390, p. 286-296
Reviewartikel
2018

Comparing water treatment topologies in Recirculating Aquaculture Plants

Simon Pedersen, Torsten Wik
Övrigt konferensbidrag
2018

Electrochemical estimation and control for lithium-ion battery health-aware fast charging

Changfu Zou, Xiaosong Hu, Zhongbao Wei et al
IEEE Transactions on Industrial Electronics. Vol. 65 (8), p. 6635-6645
Artikel i vetenskaplig tidskrift
2018

Light spectrum optimization for plant growth using biological feedback

Linnéa Ahlman, Daniel Bånkestad, Torsten Wik
Övrigt konferensbidrag
2018

Adaption of 2-D look-up tables applied to OCV-curves for aged battery cells

Anton Klintberg, Torsten Wik
Övrigt konferensbidrag
2018

A new method of scaling the gramian based input-output pairing methods for improved results

Fredrik Bengtsson, Torsten Wik, Elin Svensson
Övrigt konferensbidrag
2018

Power capability prediction for lithium-ion batteries using economic nonlinear model predictive control

Changfu Zou, Anton Klintberg, Zhongbao Wei et al
Journal of Power Sources. Vol. 396, p. 580-589
Artikel i vetenskaplig tidskrift
2018

Automatically adjusting light spectrum for optimal short term photosynthetic rate

Linnéa Ahlman, Daniel Bånkestad, Torsten Wik
Övrigt konferensbidrag
2018

Charging pattern optimization for lithium-ion batteries with an electrothermal-aging model

Kailong Liu, Changfu Zou, Kang Li et al
IEEE Transactions on Industrial Informatics. Vol. 14 (12), p. 5463-5474
Artikel i vetenskaplig tidskrift
2018

Resolving Issues of Scaling for Gramian Based Input-Output Pairing Methods

Fredrik Bengtsson, Torsten Wik, Elin Svensson
Övrigt konferensbidrag
2018

Design of heat exchanger networks with good controllability

Elin Svensson, Karin Eriksson, Fredrik Bengtsson et al
Rapport
2018

Estimating power capability of aged lithium-ion batteries in presence of communication delays

Björn Fridholm, Torsten Wik, H. Kuusisto et al
Journal of Power Sources. Vol. 383, p. 24-33
Artikel i vetenskaplig tidskrift
2017

A multiple input, multiple output model generator

Fredrik Bengtsson, Torsten Wik
Rapport
2017

Statistical modeling of OCV curves for aged battery cells

Anton Klintberg, Emil Klintberg, Björn Fridholm et al
IFAC-PapersOnLine. Vol. 50 (1), p. 2164-2168
Paper i proceeding
2017

Simulation of recirculating aquaculture systems in the OpenModelica environment

Simon Pedersen, Torsten Wik
4th NordicRAS Workshop on Recirculating Aquaculture Systems, p. 50-
Övrigt konferensbidrag
2017

Theoretical bounds on the accuracy of state and parameter estimation for batteries

Anton Klintberg, Torsten Wik, B. Fridholm
American Control Conference, p. 4035-4041
Paper i proceeding
2017

Adaptive Hysteresis Compensation Using Reduced Memory Sequences

Marcus Hedegärd, Torsten Wik, C. Wallin
IEEE/ASME Transactions on Mechatronics. Vol. 22 (5), p. 2296-2307
Artikel i vetenskaplig tidskrift
2017

Using chlorophyll a fluorescence gains to optimize LED light spectrum for short term photosynthesis

Linnéa Ahlman, Daniel Bånkestad, Torsten Wik
Computers and Electronics in Agriculture. Vol. 142, p. 224-234
Artikel i vetenskaplig tidskrift
2017

State constrained optimal control via the Fokker-Planck equation

Per Rutquist, Torsten Wik, Claes Breitholtz
Proceedings 20th IFAC World Congress, July 9-14, 2017, Toulouse, France
Paper i proceeding
2016

Simulation of Recirculating Aquaculture Systems

Simon Pedersen, Torsten Wik
20th Nordic Process Control Workshop, Sigtuna, Aug 2016
Övrigt konferensbidrag
2016

Growth tracking of basil by proximal remote sensing of chlorophyll fluorescence in growth chamber and greenhouse environments

Daniel Bånkestad, Torsten Wik
Computers and Electronics in Agriculture. Vol. 128, p. 77-86
Artikel i vetenskaplig tidskrift
2016

Optimal state based control of LTI systems over unreliable communication channels

Fredrik Bengtsson, Babak Hassibi, Torsten Wik
Reglermöte 2016 (2016)
Övrigt konferensbidrag
2016

Assessing the Controllability of Heat Exchanger Networks

Fredrik Bengtsson, Elin Svensson, Torsten Wik et al
Övrigt konferensbidrag
2016

Complexity of Chlorophyll Fluorescence Dynamic Response as an Indicator of Excessive Light Intensity

Johan Lindqvist, Daniel Bånkestad, Anna-Maria Carstensen et al
IFAC-PapersOnLine. Vol. 49 (16), p. 392-397
Paper i proceeding
2016

Simulation of Recirculating Aquaculture Plants

Simon Pedersen, Torsten Wik
Regermöte, Göteborg 2016
Poster (konferens)
2016

Robust recursive impedance estimation for automotive lithium-ion batteries

B. Fridholm, Torsten Wik, M. Nilsson
Journal of Power Sources. Vol. 304, p. 33-41
Artikel i vetenskaplig tidskrift
2016

Remote detection of light tolerance in Basil through frequency and transient analysis of light induced fluorescence

Anna-Maria Carstensen, T. Pocock, Daniel Bånkestad et al
Computers and Electronics in Agriculture. Vol. 127, p. 289-301
Artikel i vetenskaplig tidskrift
2016

LED spectrum optimisation using steady-state fluorescence gains

Linnéa Ahlman, Daniel Bånkestad, Torsten Wik
Acta Horticulturae. Vol. 1134, p. 367-374
Artikel i vetenskaplig tidskrift
2016

Exploring the dynamics of remotely detected fluorescence transients from basil as a potential feedback for lighting control in greenhouses

Anna-Maria Carstensen, Torsten Wik, Daniel Bånkestad et al
Acta Horticulturae. Vol. 1134, p. 375-383
Artikel i vetenskaplig tidskrift
2016

Cramér-Rao Lower Bounds for Battery Estimation

Anton Klintberg, Björn Fridholm, Torsten Wik
Reglermöte
Övrigt konferensbidrag
2016

Kalman filter for adaptive learning of look-up tables with application to automotive battery resistance estimation

B. Fridholm, Torsten Wik, M. Nilsson
Control Engineering Practice. Vol. 48, p. 78-86
Artikel i vetenskaplig tidskrift
2016

LQG Control for Systems with Random Unbounded Communication Delay

Fredrik Bengtsson, Babak Hassibi, Torsten Wik
Proceedings of the 55th IEEE Conference on Decision and Control (CDC 2016); Las Vegas; United States; 12-14 December 2016, p. Art no 7798406, Pages 1048-1055
Paper i proceeding
2015

Method and system for growth status determination of a plant

Anna-Maria Carstensen, Torsten Wik
Patentansökan
2015

Remote light stress detection for greenhouse LED lighting control

Anna-Maria Carstensen, Torsten Wik, Tessa Pocock
Proceedings 19th Nordic Process Control Workshop, p. 20:1-6
Övrigt konferensbidrag
2015

Implementation and robustness of an analytically based battery state of power

Torsten Wik, B. Fridholm, H. Kuusisto
Journal of Power Sources. Vol. 287, p. 448-457
Artikel i vetenskaplig tidskrift
2015

Marin fiskodling på den svenska västkusten: Tekniska lösningar

Anette Ungfors, Björn Thrandur Björnsson, Susanne Lindegarth et al
Rapport
2015

Reasons to apply operability analysis in the design of integrated biorefineries

Elin Svensson, Karin Eriksson, Torsten Wik
Biofuels, Bioproducts and Biorefining. Vol. 9 (2), p. 147-157
Artikel i vetenskaplig tidskrift
2015

Using Fluorescence as Control Parameter to Decide Optimal Light Spectrum for Plant Growth

Linnéa Ahlman, Daniel Bånkestad, Torsten Wik
Proceedings 19th Nordic Process Control Workshop, Hurtigruta, Norway, Jan 2015, p. 9:1-4.
Övrigt konferensbidrag
2014

Non-parametric convex identification of extended generalized Prandtl–Ishlinskii models

Marcus Hedegärd, Torsten Wik
Automatica. Vol. 50 (2), p. 465-474
Artikel i vetenskaplig tidskrift
2014

Solving the Hamilton-Jacobi-Bellman equation for a stochastic system with state constraints

Per Rutquist, Torsten Wik, Claes Breitholtz
Proceedings of the IEEE Conference on Decision and Control. Vol. 2015-February, p. 1840-1845
Paper i proceeding
2014

Robustness comparison of battery state of charge observers for automotive applications

Björn Fridholm, Magnus Nilsson, Torsten Wik
IFAC Proceedings Volumes (IFAC-PapersOnline). Vol. 19, p. 2138-2146
Paper i proceeding
2014

Power and current limit estimation for batteries

Torsten Wik, Bjön Fridholm, Hannes Kuusisto
Patentansökan
2014

Convex identification of models for asymmetric hysteresis

Marcus Hedegärd, Torsten Wik
American Control Conference, p. 4753-4758
Paper i proceeding
2013

Excess light detection for greenhouse illumination

Torsten Wik, Anna-Maria Carstensen, Tessa Pocock
Proceedings 18th Nordic Process Control Workshop
Övrigt konferensbidrag
2013

Method for controlling a growth cycle for growing plants using state oriented control

Kirk Clendinning, Tessa Pocock, Torsten Wik
Patentansökan
2012

Method for plant recovery from stress

Tessa Pocock, Anna-Maria Carstensen, Torsten Wik
Patentansökan
2012

Greenhouse Artificial Lighting Control

Torsten Wik, Anna-Maria Carstensen, Tessa Pocock
Proceedings 15th Nordic Process Control Workshop, p. 130-132
Övrigt konferensbidrag
2012

Optimal Control of a Batch Reactor Using the Linearized Hamilton-Jacobi-Bellman Equation

Per Rutquist, Torsten Wik, Claes Breitholtz
Proceedings 15th Nordic Process Control Workshop, p. 187-188
Övrigt konferensbidrag
2012

Spectrum optimization for artificial illumination

Torsten Wik, Anna-Maria Carstensen, Tessa Pocock
Patentansökan
2011

New Input-Output Pairing Strategies Based on Linear Quadratic Gaussian Control

Björn Halvarsson, Torsten Wik, Bengt Carlsson
Rapport
2011

Modeling and Simulation of RAS

Torsten Wik
Preprints Workshop on Recirculating Aquaculture Systems, p. 44-
Övrigt konferensbidrag
2011

Finite-time state-constrained optimal control for input-affine systems with actuator noise

Per Rutquist, Claes Breitholtz, Torsten Wik
IFAC Proceedings Volumes (IFAC-PapersOnline). Vol. 18 (PART 1), p. 5915-5919
Paper i proceeding
2011

An online method for estimation of degradable substrate and biomass in an aerated activated sludge process

Marcus Hedegärd, Torsten Wik
Water Research. Vol. 45 (19), p. 6308-6320
Artikel i vetenskaplig tidskrift
2010

State constrained control based on linearization of the Hamilton-Jacobi-Bellman equation

Torsten Wik, Per Rutquist, Claes Breitholtz
Proceedings of 49th IEEE Conference on Decision and Control. Atlanta, 15-17 December 2010, p. 5192-5197
Paper i proceeding
2010

State-Constrained Control Based on Linearization of the Hamilton-Jacobi-Bellman Equation

Torsten Wik, Per Rutquist, Claes Breitholtz
15th Nordic Process Control Workshop, Lund
Övrigt konferensbidrag
2010

Automated Controller Design using Linear Quantitative Feedback Theory for Nonlinear systems

Roozbeh Kianfar, Torsten Wik
Reglermöte 2010
Övrigt konferensbidrag
2010

Greenhouse Illumination Control

Anna-Maria Carstensen, Torsten Wik
15th Nordic Process Control Workshop, Lund
Övrigt konferensbidrag
2010

Observer design for the activated sludge process

Marcus Hedegärd, Torsten Wik
Övrigt konferensbidrag
2009

Non-conservative robust control: Optimized and constrained sensitivity functions

Carl-Magnus Fransson, Torsten Wik, Bengt Lennartson et al
IEEE Transactions on Control Systems Technology. Vol. 17 (2), p. 298-308
Artikel i vetenskaplig tidskrift
2009

A New Input/Output Pairing Strategy based on Linear Quadratic Gaussian Control

Björn Halvarsson, Bengt Carlsson, Torsten Wik
Proc. 7th IEEE International Conference on Control and Automation, Dec. 9-11, Christchurch, New Zealand, p. 978-982
Paper i proceeding
2009

Automated Controller Design using Linear Quantitative Feedback Theory for Nonlinear systems

Roozbeh Kianfar, Torsten Wik
Proc. 7th IEEE International Conference on Control and Automation, Dec. 9-11, Christchurch, New Zealand. Vol. 1-3, p. 1955-1961
Paper i proceeding
2009

Integrated Dynamic Aquaculture and Wastewater Treatment Modelling for Recirculating Aquaculture Systems

Torsten Wik, Björn Linden, Per Wramner
Aquaculture. Vol. 287 (3-4), p. 361-370
Artikel i vetenskaplig tidskrift
2008

Closed loop model reduction applied to a tank reactor process

Veronica Olesen, Claes Breitholtz, Torsten Wik
Chemical Engineering Science. Vol. 63 (3), p. 674-684
Artikel i vetenskaplig tidskrift
2008

Tank reactor temperature control using Quantitative Feedback Theory

Veronica Olesen, Claes Breitholtz, Torsten Wik
Proceedings 17th IFAC World Congress
Paper i proceeding
2008

On the infinite-time solution to state-constrained stochastic optimal control

Per Rutquist, Claes Breitholtz, Torsten Wik
Automatica. Vol. 44 (7), p. 1800-1805
Artikel i vetenskaplig tidskrift
2007

Quantitative feedback theory used on a tank reactor model

Veronica Olesen, Claes Breitholtz, Torsten Wik
Proceedings 14th Nordic Process Control Workshop, p. 36-37
Övrigt konferensbidrag
2007

Quantitative assessment in frequency domain of reactor model simplification

Veronica Olesen, Claes Breitholtz, Torsten Wik
Rapport
2006

On the infinite-time solution to state-constrained stochastic optimal control problems

Per Rutquist, Claes Breitholtz, Torsten Wik
Reglermöte 2006
Paper i proceeding
2006

Nitrifierande biofilmer för biologisk kväverening i avloppsreningsverk

Malte Hermansson, Fred Sörensson, Per-Erik Lindgren et al
Rapport
2006

Low model order approximations of continuously stirred biofilm reactors with Monod kinetics

Torsten Wik, Elin Göransson, Claes Breitholtz
Biochemical Engineering Journal. Vol. 30 (1), p. 16-25
Artikel i vetenskaplig tidskrift
2006

A closed loop perspective of model reduction for a CSTR

Veronica Olesen, Claes Breitholtz, Torsten Wik
Reglermöte 2006
Poster (konferens)
2006

Development of a new course in Process control and measurement techniques: lifting the level of comprehension to a system level

Torsten Wik
Shifting Perspectives Engineering Education (Ed. Christie, Michael)
Kapitel i bok
2005

An eigenvalue approach to infinite-horizon optimal control

Per Rutquist, Claes Breitholtz, Torsten Wik
Proceedings of the 16 th IFAC World Congress, Prague, Czech Republik
Paper i proceeding
2005

Influent load prediction using low order adaptive modeling

Johan Lindqvist, Torsten Wik, Dough Lumley et al
2nd IWA Conference on Instrumentation, Control and Automation
Paper i proceeding
2005

A Closed Loop Approach to Tank Reactor Model Simplification

Veronica Olesen, Torsten Wik, Claes Breitholtz
Proceedings of the 16th IFAC World Congress, Prague, Czech Republic
Paper i proceeding
2004

Modeling, control and simulation of recirculating aquaculture systems

Torsten Wik, B. Linden
9th IFAC Symposium on computer applications in biotechnology, Nancy, France. Vol. 37
Paper i proceeding
2004

Optimal control of battery supercapacitor systems

Per Rutquist, Claes Breitholtz, Torsten Wik
Reglermötet 2004
Paper i proceeding
2004

Feedforward feedback controller design for uncertain systems

Torsten Wik, Carl-Magnus Fransson, Bengt Lennartson
12th Nordic Process Control Workshop
Övrigt konferensbidrag
2004

Model based control of external carbon dose rate in a full-scale predenitrification system

Torsten Wik, Daniel Olsson, Dough Lumley
Water Intelligens Online, IWA Publishing
Artikel i vetenskaplig tidskrift
2004

Model reduction for temperature control of non-ideally stirred tank reactors

Veronica Olesen, Torsten Wik, Claes Breitholtz
Reglermötet 2004, Institutionen för signaler och system, Reglerteknik och automation.
Paper i proceeding
2004

A modeling, control and simulation study of recirculating aquaculture systems

Torsten Wik
12th Nordic Process Control Workshop, p. 31-38
Paper i proceeding
2004

Feedforward feedback controller design for uncertain systems

Torsten Wik, Carl-Magnus Fransson, Bengt Lennartson
12th Nordic Process Control Workshop, p. 39-
Paper i proceeding
2004

Trickling filters and biofilm modelling

Torsten Wik
Reviews in Environmental Science and Biotechnology. Vol. 2 (2), p. 193-212
Artikel i vetenskaplig tidskrift
2004

Parameter sensitivity in a compartmental model of a non-ideally stirred tank reactor

Veronica Olesen, Claes Breitholtz, Torsten Wik
12th Nordic Process Control Workshop (29-30)
Paper i proceeding
2004

Trickling filters

Torsten Wik
Biofilms in natural and engineered aqueous systems, chapter Chapter 9, p. Chapter 9-
Kapitel i bok
2003

Erfarenheter av modellbaserad styrning av etanoldosering vid Ryaverket

D. Lumley, Torsten Wik, G. Aijälä
8:e Nordiska avloppsvattenkonferensen
Paper i proceeding
2003

Feedforward Feedback Controller Design for Uncertain Systems

Torsten Wik, Carl-Magnus Fransson, Bengt Lennartson
Proc. 42nd Conference on Decision and Control, Maui, HI
Paper i proceeding
2003

Model based control of external carbon dose rate in a full-scale predenitrification system

Torsten Wik, D. Olsson, D. Lumley
9th IWA conference on design, operation and economics of large wastewater treatment plants, p. 133-140
Paper i proceeding
2002

Distribution and activity of ammonia oxidizing bacteria in a large full-scale trickling filter

F. Persson, Torsten Wik, F. Sörensson et al
Water Research. Vol. 36 (6), p. 1439-1448
Artikel i vetenskaplig tidskrift
2002

Global Controller Optimization Using Horowitz Bounds

Carl-Magnus Fransson, Bengt Lennartson, Torsten Wik et al
IFAC World Congress, Barcelona, Spain
Paper i proceeding
2001

H-inf control of uncertain systems using Horowitz bounds

Carl-Magnus Fransson, Bengt Lennartson, Torsten Wik et al
American Control Conference, Arlington, VA, USA
Paper i proceeding
2001

Multi criteria controller design for uncertain MIMO systes using nonconvex global optimization

Carl-Magnus Fransson, Bengt Lennartson, Torsten Wik et al
40th Conference on Decision and Control, Orlando, FL, USA
Paper i proceeding
2000

On optimizing PID controllers for uncertain plants using Horowitz bounds

Carl-Magnus Fransson, Bengt Lennartson, Torsten Wik et al
IFAC Workshop on digital control: Past, present, and future of PID control, Terassa, Spain
Paper i proceeding
2000

Strategies to improve the efficiency of tertiary nitrifying trickling filters

Torsten Wik
Water Science and Technology. Vol. 41 (4), p. 477-485
Artikel i vetenskaplig tidskrift
1999

Recovery of carbon black from scrap rubber

J. Piskorz, P. Majerski, D. Radlein et al
Energy and Fuels. Vol. 13 (3), p. 544-551
Artikel i vetenskaplig tidskrift
1999

Adsorption and Denitrification in Nitrifying Trickling Filters

Torsten Wik
Water Research. Vol. 33 (6), p. 1500-1508
Artikel i vetenskaplig tidskrift
1999

Strategies to improve the efficiency of tertiary nitrifying trickling filters

Torsten Wik
Proc. IAWQ Conference on Biofilm Systems, New York, p. 1055-1062
Paper i proceeding
1999

Rational Transfer Function Models for Nitrifying Trickling Filters

Torsten Wik
Water Science and Technology. Vol. 39 (4), p. 121-128
Artikel i vetenskaplig tidskrift
1998

Rational Transfer Functions for Biofilm Reactors

Torsten Wik, Claes Breitholtz
AICHE Journal. Vol. 44 (12), p. 2647-2657
Artikel i vetenskaplig tidskrift
1998

Rational Transfer Function Models for Nitrifying Trickling Filters

Torsten Wik
Preprints of AQUATECH '98 Conference on Application of Models in Water Management, Amsterdam, The Netherlands, p. 241-248
Paper i proceeding
1998

Transfer Function Models for Biofilm Reactors and Reactors with Porous Catalyst

Torsten Wik, Claes Breitholtz
Preprints of 8th Nordic Process Control Workshop, Skeviks Gård, Stockholm, Sweden, p. 242-
Paper i proceeding
1998

Transfer function models for CSTs with diffusion and reaction in biofilms or permeable catalysts

Torsten Wik, Claes Breitholtz
Preprints Reglermöte '98, Lunds tekniska högskola, p. 137-141
Paper i proceeding
1997

Evaluation of the fast dynamics in a nitrifying biofilm reactor

Torsten Wik
Preprints of the 7th Nordic Process Control Workshop, Vinstra, Norway, p. 290-
Paper i proceeding
1997

Modelling dynamics of nitrifying trickling filters and ammonium meters

Torsten Wik
Med. Fac. Landbouww. Univ. Gent. Vol. 62 (4b), p. 1641-1648
Artikel i vetenskaplig tidskrift
1997

Modelling Nitrifying Trickling Filters

Torsten Wik
VATTEN. Vol. 53 (1), p. 33-42
Artikel i vetenskaplig tidskrift
1997

Evaluation of the fast dynamics in a nitrifying biofilm reactor

Torsten Wik
Preprints of the 7th Nordic Process Control Workshop, Vinstra, Norway
Övrigt konferensbidrag
1997

Modelling dynamics of nitrifying trickling filters and ammonium meters

Torsten Wik
Proc. 11th Forum for Applied Biotechnology, Compure links 653, B-9000 Gent, Belgium. Vol. 62 (4b), p. 1641-1648
Paper i proceeding
1996

Dynamic Modeling of Nitrifying Trickling Filters

Torsten Wik
Licentiatavhandling
1996

An investigation of the fast dynamics in a nitrifying biofilm reactor

Torsten Wik
Proc of the 10th International Biotechnology Symposia , Sydney, Australia, p. 161-
Paper i proceeding
1996

Steady state solution of a two-species biofilm problem

Torsten Wik, Claes Breitholtz
Biotechnology and Bioengineering. Vol. 50 (6), p. 675-686
Artikel i vetenskaplig tidskrift
1996

En jämförelse mellan impulssvar med spårämne och stegsvar med reaktant för en icke-linjär process

Torsten Wik
Preprints, Reglermöte 96, Luleå, Sweden
Paper i proceeding
1995

Nitrification in a tertiary trickling filter at high hydraulic loads - pilot plant operation and mathematical modelling

Torsten Wik, A. Mattsson, E. Hansson et al
Water Science and Technology. Vol. 32 (8), p. 185-192
Artikel i vetenskaplig tidskrift
1995

Nitrification in a tertiary trickling filter at High Hydraulic Loads - Pilot Plant Operation and Mathematical Modelling

Torsten Wik, A. Matsson, E. Hansson et al
Int Workshop on Biofilm Structure, Growth and Dynamics, Noordvijkerhout, The Netherlands
Paper i proceeding
1994

Modelling the Dynamics of a Trickling Filter for Waste Water Treatment

Torsten Wik, Claes Lindeborg
Proceedings of the Third IEEE Conference on Control Applications, 1994. Vol. 2, p. 1035 - 1040
Paper i proceeding
1994

Modelling the Dynamics of a Trickling Filter for Waste Water Treatment

Torsten Wik, Claes Lindeborg
Preprints of the 5th Nordic Process Control Workshop, Lyngby, Denmark
Övrigt konferensbidrag

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Visar 44 forskningsprojekt

2025–2026

Fysikstyrd ML för att bygga digital tvilling för vindstödda framdrivningsfartyg

Wengang Mao Marin teknik
Torsten Wik Reglerteknik
Scott Mackinnon Nautiska Studier
Chi Zhang Marin teknik
Transport

2024–2026

Hållbar och innovativ avloppsvattenrening med bioelektrokemiskt baserad sensor och aerobt granulärt slam

Britt-Marie Wilen Vatten Miljö Teknik
Frank Persson Vatten Miljö Teknik
Oskar Modin Vatten Miljö Teknik
Torsten Wik Reglerteknik
Formas

2024–2026

Maskininlärningsassisterad elektrolyseprocess för hållbar återvinning av förbrukade litiumjonbatterier

Zhenyuan Xia Material och tillverkning
Torsten Wik Reglerteknik
Changfu Zou Reglerteknik
Chalmers

2024–2024

Monitoring Microscale Inhomogeneity in Lithium-ion Battery Using Multi-Sensor Information and Data-Driven Approaches

Xiaolei Bian Reglerteknik
Torsten Wik Reglerteknik
Aleksandar Matic Materialfysik
Changfu Zou Reglerteknik
Shizhao Xiong Materialfysik
Chalmers AoA

2024–2027

Multifysisk modellering och övervakning av litiumjonceller för nästa generations styrsystem

Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Yicun Huang Reglerteknik
Vetenskapsrådet (VR)

2023–2027

Prediktivt underhåll av e-powertrain med hjälp av fysikinformerad inlärning (TEAMING)

Changfu Zou Reglerteknik
Godwin Peprah Reglerteknik
Xiaolei Bian Reglerteknik
Yicun Huang Reglerteknik
Albert Skegro Reglerteknik
Torsten Wik Reglerteknik
Europeiska kommissionen (EU)

2023–2027

Tunga elektrifierade malmtransporter på väg i Arktis (HERA)

Torsten Wik Reglerteknik
Energimyndigheten

2023–2025

Datadriven förlängning av livslängden och optimering av prestanda för fordonsbatterisystem

Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Yizhou Zhang Reglerteknik
Energimyndigheten

2 publikationer finns
2023–2027

Snabbare snabb-laddning och utökad livslängd för litiumjonbatterier med ny övervakning av batteriåldring genom återkoppling från nya billiga sensorer

Torsten Wik Reglerteknik
Jinhua Sun Material och tillverkning
Changfu Zou Reglerteknik
Xiaolei Bian Reglerteknik
Isac Borghed Reglerteknik
Energimyndigheten

2022–2026

Användarbeteendeinformerad styrteknik för integrering av fordon-hem-kraftnät

Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Energimyndigheten

2022–2025

Electric vehicle energy optimization for improved sustainability

Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Yizhou Zhang Reglerteknik
Albert Skegro Reglerteknik
Godwin Peprah Reglerteknik
STINT

2021–2021

Elektrokemisk modellparameteridentifiering för hälsomedveten batterihantering

Yang Li Reglerteknik
Evelina Wikner Elmaskiner och kraftelektronik
Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Chalmers

2021–2022

Produktionsstyrning och ljusoptimering i växthus

Torsten Wik Reglerteknik
VINNOVA

1 publikation finns
2021–2023

Förenkla detektionen, förstå produktionen och förbättra avskiljningen av oönskade smak- och luktämnen i akvakultur

Oskar Modin Vatten Miljö Teknik
Dan Zheng Vatten Miljö Teknik
Britt-Marie Wilen Vatten Miljö Teknik
Torsten Wik Reglerteknik
Formas

1 publikation finns
2020–2023

Värmesäkerhetshantering för fordonets batterisystem

Xiaobo Qu Geologi och geoteknik
Torsten Wik Reglerteknik
VINNOVA

1 publikation finns
2020–2023

Datadriven prediktion av batteriåldring

Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Yizhou Zhang Reglerteknik
Energimyndigheten

9 publikationer finns
2020–2023

Thermal modelling and fault prognosis for Li-ion battery systems

Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Godwin Peprah Reglerteknik
Swedish Electromobility Centre

2 publikationer finns
2020–2023

Batteristyrning via adaptiv modellering och prediktiv reglering

Changfu Zou Reglerteknik
Torsten Wik Reglerteknik
Vetenskapsrådet (VR)

6 publikationer finns
2020–2023

BattVolt - Batteristyrning med dynamisk konfigurering och styrbar utspänning

Torsten Wik Reglerteknik
Albert Skegro Reglerteknik
Changfu Zou Reglerteknik
Chalmers
Mistra Innovation

1 publikation finns
2020–2022

Dynamic reconfiguration of vehicle battery systems

Torsten Wik Reglerteknik
Changfu Zou Reglerteknik
Yujing Liu Elmaskiner och kraftelektronik
Xiaoliang Huang Elmaskiner och kraftelektronik
Chalmers

2019–2021

Ny metod för biotisk stressdetektering i hortikulturell produktion

Torsten Wik Reglerteknik
Statens jordbruksverk

1 publikation finns
2019–

Battery Management

Torsten Wik Reglerteknik
Chalmers

2 publikationer finns
2018–2020

Multi-level energy management system of hybrid electric vehicles, part 2

Tomas McKelvey Signalbehandling
Maryam Razi Mekatronik
Nikolce Murgovski Mekatronik
Torsten Wik Reglerteknik
Chalmers

2018–2024

En ny generation algoritmer för modern drivlinereglering

Anand Ganesan Reglerteknik
Nikolce Murgovski Mekatronik
Sebastien Gros Reglerteknik
Torsten Wik Reglerteknik
Derong Yang Fordonsteknik och autonoma system
VINNOVA

3 publikationer finns
2018–2025

PhD Program in Electrical Power and Control Engineering with Addis Abeba University

Erik Ahlgren Energiteknik
Stanislaw Gubanski Elnät och komponenter
Massimo Bongiorno Elnät och komponenter
Jimmy Ehnberg Elnät och komponenter
Torsten Wik Reglerteknik
Mebtu Bihonegn Beza Elnät och komponenter
SIDA

2018–2019

Optimerad användning av batterier i fordon genom multinivå-modellering

Patrik Johansson Kondenserade materiens fysik
Torsten Wik Reglerteknik
Changfu Zou Reglerteknik
Swedish Electromobility Centre
Chalmers

2017–2020

Demonstrationsplattform för elektrifierade transportsystem med lastbilar och högkapacitetsbussar

Anders Grauers Reglerteknik
Torsten Wik Reglerteknik
Energimyndigheten

2017–2019

Batterihantering

Torsten Wik Reglerteknik
Changfu Zou Reglerteknik
Anton Klintberg Reglerteknik
Patrik Johansson Kondenserade materiens fysik
Chalmers

2017–2022

Effektivare och skonsammare användning av litiumjonbatterier genom adaptiv modellering

Torsten Wik Reglerteknik
Patrik Johansson Materialfysik
Lukas Wikander Reglerteknik
Changfu Zou Reglerteknik
Energimyndigheten

2 publikationer finns
2016–2017

Skattning av cylinderseparerat cylindertryck för effektivare och renare förbränning.

Marcus Hedegärd Reglerteknik
Torsten Wik Reglerteknik
Energimyndigheten
Volvo Group

2015–2016

Effektivare batterianvändning i elfordon

Torsten Wik Reglerteknik
Energimyndigheten

2014–2015

NÄRFISK-14

Torsten Wik Reglerteknik
VINNOVA

2014–2018

Innovativa lösningar för utveckling av marint vattenbruk med hög kvalitet i Sverige (NOMACULTURE)

Torsten Wik Reglerteknik
Ingrid Undeland Livsmedelsvetenskap
Stiftelsen för miljöstrategisk forskning (Mistra)

5 publikationer finns
2014–2016

Skattning av cylinderseparerat moment för effektivare och renare förbränning

Torsten Wik Reglerteknik
Energimyndigheten

2012–2014

BatMan - förberedelse för förbättrad återanvändning av batterisystem

Olivier Petit Strömningslära
Anne-Marie Tillman Environmental Systems Analysis
Lars Davidson Strömningslära
Duncan Kushnir Environmental Systems Analysis
Bo Egardt Reglerteknik
Torsten Wik Reglerteknik
Energimyndigheten

2012–2014

NÄRFISK testbädd teknik

Torsten Wik Reglerteknik
Erik Windhede Reglerteknik
VINNOVA

2012–2017

Intelligent Light

Linnéa Ahlman Reglerteknik
Torsten Wik Reglerteknik
Anna-Maria Carstensen Reglerteknik
Stiftelsen för miljöstrategisk forskning (Mistra)

4 publikationer finns
2012–2014

Tillståndsfunktioner för energilager i elektrifierade fordon

Torsten Wik Reglerteknik
Energimyndigheten

Det kan finnas fler projekt där Torsten Wik medverkar, men du måste vara inloggad som anställd på Chalmers för att kunna se dem.