Load Modulation at Two Locations for Damping of Electro-Mechanical Oscillations in a Multimachine System
(2000) IEEE Power Engineering Society Summer Meeting, 2000 3. p.1912-1917- Abstract
- Modulation of customer loads for increased power system damping is suggested as an alternative to control of HVDC links and FACTS devices. The loads are modeled as real power controlled by local bus frequency, which is equivalent to viscous damping in a mechanical system. The qualitative aspects of the interaction between two load modulation controllers are studied using linearized models of two test systems with three and twenty-three machines respectively. Root locus plots show that transfer function zeros limit damping. Tuning a controller for maximum relative damping is equivalent to impedance matching. This is used to explain the zero dynamics and why a second controller may not be able to contribute to added damping. Time simulations... (More)
- Modulation of customer loads for increased power system damping is suggested as an alternative to control of HVDC links and FACTS devices. The loads are modeled as real power controlled by local bus frequency, which is equivalent to viscous damping in a mechanical system. The qualitative aspects of the interaction between two load modulation controllers are studied using linearized models of two test systems with three and twenty-three machines respectively. Root locus plots show that transfer function zeros limit damping. Tuning a controller for maximum relative damping is equivalent to impedance matching. This is used to explain the zero dynamics and why a second controller may not be able to contribute to added damping. Time simulations of a nonlinear system model verifies the final design of the controllers for the large test system (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4357719
- author
- Samuelsson, Olof LU
- organization
- publishing date
- 2000
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- load regulation oscillations power system control power system transient stability root loci transfer functions
- host publication
- Power Engineering Society Summer Meeting, 2000. IEEE
- volume
- 3
- pages
- 1912 - 1917
- conference name
- IEEE Power Engineering Society Summer Meeting, 2000
- conference location
- Seattle, Washington, United States
- conference dates
- 2000-07-16 - 2000-07-20
- external identifiers
-
- scopus:0037478654
- ISBN
- 0-7803-6420-1
- DOI
- 10.1109/PESS.2000.868826
- language
- English
- LU publication?
- yes
- id
- 18faf669-514e-4626-b8ff-ee6bb497e8a1 (old id 4357719)
- alternative location
- http://www.iea.lth.se/~ielolof/olof/SM00.pdf
- date added to LUP
- 2016-04-04 13:19:18
- date last changed
- 2022-01-30 00:02:53
@inproceedings{18faf669-514e-4626-b8ff-ee6bb497e8a1,
abstract = {{Modulation of customer loads for increased power system damping is suggested as an alternative to control of HVDC links and FACTS devices. The loads are modeled as real power controlled by local bus frequency, which is equivalent to viscous damping in a mechanical system. The qualitative aspects of the interaction between two load modulation controllers are studied using linearized models of two test systems with three and twenty-three machines respectively. Root locus plots show that transfer function zeros limit damping. Tuning a controller for maximum relative damping is equivalent to impedance matching. This is used to explain the zero dynamics and why a second controller may not be able to contribute to added damping. Time simulations of a nonlinear system model verifies the final design of the controllers for the large test system}},
author = {{Samuelsson, Olof}},
booktitle = {{Power Engineering Society Summer Meeting, 2000. IEEE}},
isbn = {{0-7803-6420-1}},
keywords = {{load regulation oscillations power system control power system transient stability root loci transfer functions}},
language = {{eng}},
pages = {{1912--1917}},
title = {{Load Modulation at Two Locations for Damping of Electro-Mechanical Oscillations in a Multimachine System}},
url = {{http://dx.doi.org/10.1109/PESS.2000.868826}},
doi = {{10.1109/PESS.2000.868826}},
volume = {{3}},
year = {{2000}},
}