Johan Löfberg, Assistant Professor

After graduating in 2003 on Minimax Approaches to Robust Model Predictive Control, and spending three years as a post-doc at the Automatic Control laboratory at ETH, Zurich, I am currently back in Linköping as a research associate in the control group.
My research interest lies in the border between control theory and optimization. I was earlier heavily focused on applications of optimization methods in model predictive control, but now prefer a slightly broader perspective.
A common factor in most of my work is the development of control-oriented optimization-based algorithms, leading to the constant evolution of a MATLAB based modelling language, called YALMIP.

Some recent work

• J. Löfberg, Oops! I cannot do it again: Testing for recursive feasibility in MPC (pre-print) , Accepted for publication in Automatica, 2012.
• Th. Besselmann and J. Löfberg and M. Morari,Explicit MPC for LPV Systems: Stability and Optimality, Accepted for publication in IEEE transactions on Automatic Control, 2012
• R. Falkeborn and J. Löfberg and A. Hansson, Lowrank exploitation in semidefinite programming for control, Accepted for publication in International Journal of Control, 2011
• M. Kvasnica and J. Löfberg and M. Fikar, Stabilizing Polynomial Approximation of Explicit MPC, Automatica, 2011.
• D. Petersson and J. Löfberg, LPV H2-Controller Synthesis Using Nonlinear Programming , IFAC 2011
• T. Ardeshiri, M. Norrlöf, J. Löfberg, A. Hansson, Convex Optimization approach for Time-Optimal Path Tracking of Robots with Speed Dependent Constraints , IFAC 2011
• J. Löfberg, Automatic robust convex programming (pre-print), Accepted for publication in Optimization Methods and Software
• R. Falkeborn and J. Löfberg and A. Hansson, Lowrank exploitation in semidefinite programming for control, 2010 IEEE Multi-Conference on Systems and Control
• D. Petersson and J. Löfberg, Robust generation of LPV state-space models using a regularized H2-cost, 2010 IEEE Multi-Conference on Systems and Control

Teaching

• Lecturing Introduction to MATLAB
• Lecturing Automatic control (basic course for the mechanical engineering program)

Master thesis supervisor

• Fredrik Eskilsson, Passive Control for a Human Power Amplifier,providing Force Amplification, Guidance and Obstacle Avoidance
• Anders Bergdahl, Autonomous bucket emptying on hauler
• Håkan Almqvist, Automatic bucket fill
• Jenny Arkad, Tomas Andersson, A Control Algorithm for an Ultrasonic Motor
• Fredrik Petersson, Modelling, simulation and implementation of sensor-less control of a permanent magnet synchronous motor
• Magnus Larsson, Current control in a new cooling technology
• Björn Ericsson, Model library of cooling system components for Simulink

Phd co-supervisor

• Daniel Simon, Control law development for constrained systems
• Daniel Petersson, Generation of LPV models
• Peter Rosander, Buffer level control

Post-doc

• Jean Thomas, Master MPC for Power Plants

Contact information

Johan Löfberg
Division of Automatic Control
Department of Electrical Engineering
Linköping University
SE-581 83 Linköping
Sweden

B-building, room Bv2A:536, tel: +46 13-284029
fax: +46 13-282622
johanl@isy.liu.se

Private address
Ramshult Södergård
SE-59591 Mjölby
Sweden