Advanced

Influence of the load representation in voltage stability studies

Romero, Ines LU and Samuelsson, Olof LU (2003) Seventh IASTED International Multi-Conference - Power and Energy Systems In Proceedings of the IASTED Multi-Conference- Power and Energy Systems 7. p.121-126
Abstract
The critical effect of load representation in voltage stability studies is discussed in this paper. Under the same conditions in the system, the load representation will affect the location of the operating point in a P-V curve representation, leading the system closer to or further from the collapse point. The use of dynamic load models in voltage stability studies is motivated, especially in those cases where the load shows a thermostatic effect. Simulations show that the recovery of this type of loads during a voltage disturbance may lead the system to heavily loaded conditions and to voltage instability. However, during that recovery time, there is a relief in load, and by taking effective and quick control actions the stability of the... (More)
The critical effect of load representation in voltage stability studies is discussed in this paper. Under the same conditions in the system, the load representation will affect the location of the operating point in a P-V curve representation, leading the system closer to or further from the collapse point. The use of dynamic load models in voltage stability studies is motivated, especially in those cases where the load shows a thermostatic effect. Simulations show that the recovery of this type of loads during a voltage disturbance may lead the system to heavily loaded conditions and to voltage instability. However, during that recovery time, there is a relief in load, and by taking effective and quick control actions the stability of the system may be maintained. Moreover local generation, activation of gas turbines, is presented as a new approach to re-establish this stability, providing reactive support but also increasing the loadability of the system. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Voltage stability, Load representation
in
Proceedings of the IASTED Multi-Conference- Power and Energy Systems
volume
7
pages
121 - 126
publisher
International Assoc. of Science and Technology for Development
conference name
Seventh IASTED International Multi-Conference - Power and Energy Systems
external identifiers
  • wos:000186471800022
  • scopus:1542726597
ISBN
0889863350
language
English
LU publication?
yes
id
d0430018-5fe9-46cc-a684-2888ad9d4759 (old id 612038)
date added to LUP
2007-11-30 14:37:18
date last changed
2017-01-01 08:03:13
@inproceedings{d0430018-5fe9-46cc-a684-2888ad9d4759,
  abstract     = {The critical effect of load representation in voltage stability studies is discussed in this paper. Under the same conditions in the system, the load representation will affect the location of the operating point in a P-V curve representation, leading the system closer to or further from the collapse point. The use of dynamic load models in voltage stability studies is motivated, especially in those cases where the load shows a thermostatic effect. Simulations show that the recovery of this type of loads during a voltage disturbance may lead the system to heavily loaded conditions and to voltage instability. However, during that recovery time, there is a relief in load, and by taking effective and quick control actions the stability of the system may be maintained. Moreover local generation, activation of gas turbines, is presented as a new approach to re-establish this stability, providing reactive support but also increasing the loadability of the system.},
  author       = {Romero, Ines and Samuelsson, Olof},
  booktitle    = {Proceedings of the IASTED Multi-Conference- Power and Energy Systems},
  isbn         = {0889863350},
  keyword      = {Voltage stability,Load representation},
  language     = {eng},
  pages        = {121--126},
  publisher    = {International Assoc. of Science and Technology for Development},
  title        = {Influence of the load representation in voltage stability studies},
  volume       = {7},
  year         = {2003},
}