Enhetschef: Torsten Wik​

Medarbetare i forskargruppen listas längre ner på sidan.

Reglerteknik är en oundgänglig komponent i nutidens design av maskiner och andra mer komplexa system. Exempel på detta finner man i fordon, robotar, medicinsk utrustning, industriprocesser, system för telekommunikation, bioteknik och i många andra sammanhang. Reglerteknik är också en grundläggande ingenjörsdisciplin som etablerades för ungefär femtio år sedan, och idag når ett brett spektrum av applikationer.

Kärnan i reglerteknik är analys av dynamiska system och nyttjande av återkoppling. Det innebär att ett system tilldelas en reglerfunktion, baserad på mätningar, vilken har som mål att kompensera för störningar, felaktiga systemmodeller etc.

Forskargruppen Reglerteknik bedriver forskning i såväl grundläggande frågeställningar rörande reglerteknikens metodologi, som dess tillämpningar inom industri och samhälle. Vi är särskilt intresserade av frågor som berör miljösystem och biologiska system, tillämpningar inom transport- och fordonsteknologi, och av regleringsaspekter på elkraftssystem. 


Teori för reglerteknik

Nowadays, safety plays a crucial role everywhere, especially in those engineering application where human life might be in danger. In other cases, occurring malfunctions simply induce system breakdowns causing serious economic loss. Therefore, we invest more and more energy to invent new solutions to secure system design.

Networked control
A typical control loop consists of a plant, a few sensors taking measurements of observable variables of the plant, a controller which uses the gathered measurements to compute future inputs to the plant, p, one or more actuators which apply the inputs prescribed by the controller.

Optimal control
This project studies the solution to optimal control problems, characterized by control input affine systems, affected by stochastic disturbances and in some cases also subject to state and/or control input constraints are carried out. 

Biologiska system och miljösystem

Plant induced greenhouse lighting control
In this research we aim at using the controllability of LEDs to adjust the light optimally to the needs of the grower and the needs of the plants.  New greenhouse remote sensing techniques, based on analysis of the light from the plants, are therefore being developed for the determination of suitable continuous online feedback signals to the lamp controller.

Aquaculture and wastewater treatment
In order to fully exploit the advantages of Recirculating Aquaculture Systems, the water exchange should be as small as possible. This implies strong demands on the water treatment, e.g. the maintenance of an efficient nitrification, denitrification and organic removal.

Experimental RAS plant technology / Närfisk testbäddsteknik
​Projektet syftar till all skapa en organisatorisk och fysisk testbädd för utveckling av svensk RAS-teknik (Recirculating Aquaculture Systems) för användning inom landbaserad och konsumentnära fiskodling...

Tillämpningar inom reglerteknik

Energy management for hybrid and plug-in electric vehicles
The main research topic in the project concerns how a priori information regarding the future trip can be acquired and utilized to improve PHEV energy efficiency. The research covers aspects such as quasi static powertrain modeling, convex optimization and optimal control techniques such as Dynamic Programming.

Optimal design and operation of hybrid electric vehicles
In this project convex optimization approach is used to find the optimal sizing of combustion engine, electrical motor and batter simultaneously with the optimal energy management strategy. This requires appropriate models that describe how the electric motor and internal combustion engine sizes affect the power flows and cost of these components.

Operation and control of multi-level converters
The Multi-Level Converter (MLC) is a power electronic converter which is modular in structure and hence provides ‘extra knobs’ to control and monitor the behavior of battery on cell level. The project aims at operation and control of MLC to optimize the performance of battery system to enhance the lifetime of battery pack.

Closed-loop control of combustion engines
A vital part of a system for closed-loop combustion control is sensors providing combustion information that can be fed back to the controller. This project investigates the use of a crankshaft integrated torque sensor for this purpose.

Torque sensing in heavy-duty powertrains
In this project the potential use of placing the ABB torque sensor (Torductor) between the flywheel and the gearbox is explored. In particular the research is focused on two applications; zero torque prediction and combustion diagnosis...

Intelligent transport systems
Advanced control techniques implemented on available actuators such as traffic lights or variable speed limits give the chance to reduce the possibility of traffic congestions or incidents. In addition, with the help of surveillance system, accidents can be detected in time and suitable control measures can be taken to overcome or decrease...

Tillämpningar inom elektriska system 

Control of HVDC systems
The overall objective of this project is to investigate control methods for voltage source converter based HVDC transmission systems. The intension is to analyse the dynamics of HVDC systems from a control and supervision perspective and propose robust controllers.

Wind power turbine control
The goal of the previous project project ’Stochastic Model Predictive Control of Wind Turbines’ was to develop a concept ready novel control architecture for a wind turbine control with extended load mitigation capabilities and power output improvement. The goal of this project has been reached with the following results...

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Publicerad: to 04 okt 2012. Ändrad: må 06 maj 2019