Nonlinear damping computation and envelope detection using Hilbert transform and its application to power systems wide area monitoring
Nonlinear damping computation and envelope detection using Hilbert transform and its application to power systems wide area monitoring
An important feature of an oscillation is the damping characterization. For a system, the damping characteristic of the oscillation that occurs on its states or outputs gives the information of the stability of the system. There are various techniques to compute the damping ratio of a linear model of a system, but the tools that apply to nonlinear systems are scarce. In this paper, we utilize the Hilbert transform of nonlinear and nonstationary oscillatory signals to compute the instantaneous damping of the signals. The technique is applied to the computation of the damping ratio of power systems signals that contain inter area oscillations. This damping computation is important for power system monitoring
978-1-4244-4241-6
Laila, Dina Shona
41aa5cf9-3ec2-4fdf-970d-a0a349bfd90c
Larsson, Mats
1494b95f-26bb-4932-8690-13865dcc4591
Pal, Bikash
5688b16f-62eb-48c3-8e61-d4c1e98deba4
Korba, Petr
b84900f5-bf71-48db-8655-3621084486a5
July 2009
Laila, Dina Shona
41aa5cf9-3ec2-4fdf-970d-a0a349bfd90c
Larsson, Mats
1494b95f-26bb-4932-8690-13865dcc4591
Pal, Bikash
5688b16f-62eb-48c3-8e61-d4c1e98deba4
Korba, Petr
b84900f5-bf71-48db-8655-3621084486a5
Laila, Dina Shona, Larsson, Mats, Pal, Bikash and Korba, Petr
(2009)
Nonlinear damping computation and envelope detection using Hilbert transform and its application to power systems wide area monitoring.
In Proceedings of Power & Energy Society General Meeting (PES '09).
IEEE.
6 pp
.
(doi:10.1109/PES.2009.5275889).
Record type:
Conference or Workshop Item
(Paper)
Abstract
An important feature of an oscillation is the damping characterization. For a system, the damping characteristic of the oscillation that occurs on its states or outputs gives the information of the stability of the system. There are various techniques to compute the damping ratio of a linear model of a system, but the tools that apply to nonlinear systems are scarce. In this paper, we utilize the Hilbert transform of nonlinear and nonstationary oscillatory signals to compute the instantaneous damping of the signals. The technique is applied to the computation of the damping ratio of power systems signals that contain inter area oscillations. This damping computation is important for power system monitoring
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Published date: July 2009
Venue - Dates:
IEEE 2009 Power & Energy Society General Meeting - PES '09, 2009-07-26 - 2009-07-30
Organisations:
Mechatronics
Identifiers
Local EPrints ID: 353753
URI: http://eprints.soton.ac.uk/id/eprint/353753
ISBN: 978-1-4244-4241-6
PURE UUID: b4940e97-cb13-4fbf-8bdf-479a2bf8fe1f
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Date deposited: 17 Jun 2013 10:27
Last modified: 14 Mar 2024 14:09
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Contributors
Author:
Dina Shona Laila
Author:
Mats Larsson
Author:
Bikash Pal
Author:
Petr Korba
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