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H infinity controller for smoothing the coupling error in co-simulated technical systems.

Gurpegui Ramón, Alba LU (2022) In Master's Theses in Mathematical Sciences NUMM03 20212
Mathematics (Faculty of Engineering)
Mathematics (Faculty of Sciences)
Centre for Mathematical Sciences
Abstract
Co-simulation is widely used in industry for the simulation of multi-domain linear-time-invariant systems. However, as a result of the not continuous communication between our coupling variables, simulation results end up being unstable and inaccurate. Among the different strategies that have been developed in the recent years to control co-simulation drawbacks, the aim of this thesis is to understand the application of a sophisticated control theory technique, the H infinity synthesis method to an explicit-parallel co-simulation scheme in the frequency domain.
Popular Abstract
Co-simulation is the simulation of dynamical systems described by differential equations, in particular, with linear time invariant systems. This systems can be so complex in general that it turns out advantageous to consider them in a decoupled way, so that the subsystems are solved separately, e.g.: co-simulation of the two masses of a dual mass spring damper system, or the co-simulation og MBD vehicle model and an EPAS system model. This separation introduces an error, the coupling error, that relies on the update of the shared information between the subsystems when they are being solved. The purpose of my thesis is to understand a sophisticated control theory approach, the H infinity synthesis method in order to minimize the coupling... (More)
Co-simulation is the simulation of dynamical systems described by differential equations, in particular, with linear time invariant systems. This systems can be so complex in general that it turns out advantageous to consider them in a decoupled way, so that the subsystems are solved separately, e.g.: co-simulation of the two masses of a dual mass spring damper system, or the co-simulation og MBD vehicle model and an EPAS system model. This separation introduces an error, the coupling error, that relies on the update of the shared information between the subsystems when they are being solved. The purpose of my thesis is to understand a sophisticated control theory approach, the H infinity synthesis method in order to minimize the coupling error. (Less)
Please use this url to cite or link to this publication:
author
Gurpegui Ramón, Alba LU
supervisor
organization
alternative title
H oändligt controller för att utjämna coupling felet i co-simulerade tekniska system
course
NUMM03 20212
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Co-simulation, Control Theory, coupled systems, Controller, H infinity controller, Linear Time invariant systems
publication/series
Master's Theses in Mathematical Sciences
report number
LUNFNA-3040-2022
ISSN
1404-6342
other publication id
2022:E84
language
English
id
9095145
date added to LUP
2024-05-14 16:49:11
date last changed
2024-05-14 16:49:11
@misc{9095145,
  abstract     = {{Co-simulation is widely used in industry for the simulation of multi-domain linear-time-invariant systems. However, as a result of the not continuous communication between our coupling variables, simulation results end up being unstable and inaccurate. Among the different strategies that have been developed in the recent years to control co-simulation drawbacks, the aim of this thesis is to understand the application of a sophisticated control theory technique, the H infinity synthesis method to an explicit-parallel co-simulation scheme in the frequency domain.}},
  author       = {{Gurpegui Ramón, Alba}},
  issn         = {{1404-6342}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{Master's Theses in Mathematical Sciences}},
  title        = {{H infinity controller for smoothing the coupling error in co-simulated technical systems.}},
  year         = {{2022}},
}