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Out of Control Because of Harmonics - An Analysis of Harmonic Response of an Inverter Train

Möllerstedt, Erik and Bernhardsson, Bo LU (2000) In Control Systems Magazine 20(4). p.70-81
Abstract
Presents a method to use linear analysis to capture the frequency coupling of nonlinear and time-varying components. System stability is analyzed by connecting the harmonic transfer functions of the different component models. This facilitates an object-oriented approach to modeling, which supports reuse of models. An analysis of the complete railway system is, of course, difficult. Several locomotives can be moving along the power distribution line at the same time, and depending on the distance between them, the interaction changes. The power consumption also changes, depending on operating modes. During normal operation, energy is consumed from the network, but as modern locomotives use electrical braking, the power flow changes... (More)
Presents a method to use linear analysis to capture the frequency coupling of nonlinear and time-varying components. System stability is analyzed by connecting the harmonic transfer functions of the different component models. This facilitates an object-oriented approach to modeling, which supports reuse of models. An analysis of the complete railway system is, of course, difficult. Several locomotives can be moving along the power distribution line at the same time, and depending on the distance between them, the interaction changes. The power consumption also changes, depending on operating modes. During normal operation, energy is consumed from the network, but as modern locomotives use electrical braking, the power flow changes direction during deceleration, and energy is delivered back to the grid. The inverter trains are not passive systems. The converters are controlled with only limited system knowledge (local measurements of currents and voltages), making analysis and control design an even bigger challenge (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Control Systems Magazine
volume
20
issue
4
pages
70 - 81
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:0034248649
ISSN
0272-1708
DOI
10.1109/37.856180
language
English
LU publication?
yes
id
f00b1fe3-a90e-4b79-9a8c-8db6fb81f6d3 (old id 162941)
date added to LUP
2007-07-09 13:11:58
date last changed
2017-08-06 04:24:04
@article{f00b1fe3-a90e-4b79-9a8c-8db6fb81f6d3,
  abstract     = {Presents a method to use linear analysis to capture the frequency coupling of nonlinear and time-varying components. System stability is analyzed by connecting the harmonic transfer functions of the different component models. This facilitates an object-oriented approach to modeling, which supports reuse of models. An analysis of the complete railway system is, of course, difficult. Several locomotives can be moving along the power distribution line at the same time, and depending on the distance between them, the interaction changes. The power consumption also changes, depending on operating modes. During normal operation, energy is consumed from the network, but as modern locomotives use electrical braking, the power flow changes direction during deceleration, and energy is delivered back to the grid. The inverter trains are not passive systems. The converters are controlled with only limited system knowledge (local measurements of currents and voltages), making analysis and control design an even bigger challenge},
  author       = {Möllerstedt, Erik and Bernhardsson, Bo},
  issn         = {0272-1708},
  language     = {eng},
  number       = {4},
  pages        = {70--81},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {Control Systems Magazine},
  title        = {Out of Control Because of Harmonics - An Analysis of Harmonic Response of an Inverter Train},
  url          = {http://dx.doi.org/10.1109/37.856180},
  volume       = {20},
  year         = {2000},
}