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Emergency voltage control using search and predictive control

Larsson, Mats; Hill, David J and Olsson, Gustaf LU (2002) In International Journal of Electrical Power & Energy Systems 24(2). p.121-130
Abstract
This paper presents a method of optimal coordination of load shedding, capacitor switching and tap changer operation using a dynamic system model in order to preserve or retain long-term voltage stability. The method is based on model predictive control and tree search. A model of the controlled system, including the network and load dynamics, is used to predict the future system behaviour based on the current state and applied control actions. The optimal control state according to these predictions is then obtained using a search method similar to those used in chess computers. A detailed and three simplified predictors are presented, along with a tuning procedure that aims to ensure that a minimum amount of emergency control is... (More)
This paper presents a method of optimal coordination of load shedding, capacitor switching and tap changer operation using a dynamic system model in order to preserve or retain long-term voltage stability. The method is based on model predictive control and tree search. A model of the controlled system, including the network and load dynamics, is used to predict the future system behaviour based on the current state and applied control actions. The optimal control state according to these predictions is then obtained using a search method similar to those used in chess computers. A detailed and three simplified predictors are presented, along with a tuning procedure that aims to ensure that a minimum amount of emergency control is scheduled by the controller. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
predictive control, power system dynamic stability, voltage control, trees, search methods
in
International Journal of Electrical Power & Energy Systems
volume
24
issue
2
pages
121 - 130
publisher
Elsevier
external identifiers
  • wos:000172776700005
  • scopus:0036466526
ISSN
0142-0615
DOI
10.1016/S0142-0615(01)00017-5
language
English
LU publication?
yes
id
b9187057-ea18-4fcc-b22b-6d0c71207633 (old id 347945)
date added to LUP
2007-11-14 12:36:41
date last changed
2017-12-10 03:50:10
@article{b9187057-ea18-4fcc-b22b-6d0c71207633,
  abstract     = {This paper presents a method of optimal coordination of load shedding, capacitor switching and tap changer operation using a dynamic system model in order to preserve or retain long-term voltage stability. The method is based on model predictive control and tree search. A model of the controlled system, including the network and load dynamics, is used to predict the future system behaviour based on the current state and applied control actions. The optimal control state according to these predictions is then obtained using a search method similar to those used in chess computers. A detailed and three simplified predictors are presented, along with a tuning procedure that aims to ensure that a minimum amount of emergency control is scheduled by the controller.},
  author       = {Larsson, Mats and Hill, David J and Olsson, Gustaf},
  issn         = {0142-0615},
  keyword      = {predictive control,power system dynamic stability,voltage control,trees,search methods},
  language     = {eng},
  number       = {2},
  pages        = {121--130},
  publisher    = {Elsevier},
  series       = {International Journal of Electrical Power & Energy Systems},
  title        = {Emergency voltage control using search and predictive control},
  url          = {http://dx.doi.org/10.1016/S0142-0615(01)00017-5},
  volume       = {24},
  year         = {2002},
}