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Control and Analysis of Pulse-Modulated Systems

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Abstract:
The talk gives an overview of control and analysis problems associated with pulse-modulated systems. We focus specially on pulse-width modulated (PWM) systems and use the DC-DC converter as an illustrative example throughout the talk. In the talk we present a number of different approaches which have been used to model pulse-modulated systems for different purposes. A discrete time model was used for stability analysis. A sampled data model was used for H-infinity control synthesis and the so-called dynamic phasor model was used for both stability and harmonic analysis pf PWM systems.

http://www.math.kth.se/~almer/
Type of Seminar:
IfA Seminar
Speaker:
Stefan Almér
Date/Time:
Apr 18, 2008   10.15
Location:

ETL K 25
Contact Person:

Sébastien Mariéthoz
File Download:

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Biographical Sketch:
Stefan Almér was born in Stockholm, Sweden in 1975. He received the M.Sc. Degree in Engineering Physics from Royal Institute of Technology (KTH) in 2003. Since February 2003 he is a Ph.D student at the Division of Optimization and Systems Theory. KTH. His advisor is Docent Ulf Jönsson. The academic year of 2000-2001 he spent as an exchange student at ETH Zuerich, Switzerland. His Master's thesis was carried out at Bombardier Transportation, Västerĺs and dealt with control system design for DC-DC converters.