Linear Quadratic and PI Control of anElectrically Actuated Throttle
Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
In diesel engines throttle valves are used for various purposes. One of these is to control the amount of air which is let into the cylinders. A precise amount of air is needed for optimal combustion, and for that reason a throttle is used to regulate air intake. As technology has advanced, it has become more common to control these throttles with electrical actuators as opposed to pneumatic ones as electric actuators are faster and more accurate. In this thesis, two methods to position control a brush-less direct current motor are proposed. One consists of a linear quadratic controller which is evaluated with simulations and one consists of a single PI-controller which is evaluated both with simulations and with experiments. The motor is controlled with three pulse width modulated signals generated with six transistors mounted on half-bridges. It is shown that good control performance can be achieved with both controllers.
Place, publisher, year, edition, pages
2013. , 43 p.
EES Examensarbete / Master Thesis
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-133583OAI: oai:DiVA.org:kth-133583DiVA: diva2:662309
Master of Science in Engineering - Electrical Engineering
Johansson, Karl Henrik