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Approximating the Loadability Surface in the Presence of SNB-SLL Corner Points

Perninge, Magnus LU (2013) In Electric Power Systems Research 96. p.64-74
Abstract
Power system voltage security assessment is generally applied by considering the power system loadability surface. For a large power system, the loadability surface is a complicated hyper-surface in parameter space, and local approximations are a necessity for any analysis. Unfortunately, inequality constraints due to for example generator overexitation limiters, and higher codimension bifurcations, makes the loadability surface non-smooth.



One situation that is particularly difficult to handle is when a saddle-node bifurcation surface intersects a switching loadability limit surface. In this article we intend to investigate how several local approximations can be combined to obtain an adequate approximation of the... (More)
Power system voltage security assessment is generally applied by considering the power system loadability surface. For a large power system, the loadability surface is a complicated hyper-surface in parameter space, and local approximations are a necessity for any analysis. Unfortunately, inequality constraints due to for example generator overexitation limiters, and higher codimension bifurcations, makes the loadability surface non-smooth.



One situation that is particularly difficult to handle is when a saddle-node bifurcation surface intersects a switching loadability limit surface. In this article we intend to investigate how several local approximations can be combined to obtain an adequate approximation of the loadability surface near such intersections. (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
Electric Power Systems Research
volume
96
pages
64 - 74
publisher
Elsevier
external identifiers
  • scopus:84870652790
ISSN
1873-2046
DOI
10.1016/j.epsr.2012.10.016
language
English
LU publication?
yes
id
539cc5e7-6439-482d-8db7-b93f59c6f310 (old id 4076453)
date added to LUP
2016-04-01 11:03:33
date last changed
2022-02-25 08:10:17
@article{539cc5e7-6439-482d-8db7-b93f59c6f310,
  abstract     = {{Power system voltage security assessment is generally applied by considering the power system loadability surface. For a large power system, the loadability surface is a complicated hyper-surface in parameter space, and local approximations are a necessity for any analysis. Unfortunately, inequality constraints due to for example generator overexitation limiters, and higher codimension bifurcations, makes the loadability surface non-smooth.<br/><br>
<br/><br>
One situation that is particularly difficult to handle is when a saddle-node bifurcation surface intersects a switching loadability limit surface. In this article we intend to investigate how several local approximations can be combined to obtain an adequate approximation of the loadability surface near such intersections.}},
  author       = {{Perninge, Magnus}},
  issn         = {{1873-2046}},
  language     = {{eng}},
  pages        = {{64--74}},
  publisher    = {{Elsevier}},
  series       = {{Electric Power Systems Research}},
  title        = {{Approximating the Loadability Surface in the Presence of SNB-SLL Corner Points}},
  url          = {{https://lup.lub.lu.se/search/files/2346901/4091990.pdf}},
  doi          = {{10.1016/j.epsr.2012.10.016}},
  volume       = {{96}},
  year         = {{2013}},
}