Nonlinear damping computation and envelope detection using Hilbert transform and its application to power systems wide area monitoring

Dina Shona Laila, M. Larsson, B. C. Pal, P. Korba [Unknown]

Research output: Contribution to conferencePaper

27 Citations (Scopus)

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.
Original languageEnglish
DOIs
Publication statusPublished - 2 Oct 2009
EventIEEE Power & Energy Society General Meeting - Calgary, Canada
Duration: 26 Jul 200930 Jul 2009

Conference

ConferenceIEEE Power & Energy Society General Meeting
CountryCanada
CityCalgary
Period26/07/0930/07/09

Bibliographical note

The full text is currently unavailable on the repository.

Keywords

  • Damping
  • Envelope detectors
  • Power systems
  • Monitoring
  • Power system reliability
  • Power system dynamics
  • Power system interconnection
  • Frequency
  • Power system stability
  • Power system modeling
  • power system stability
  • damping
  • Hilbert transforms
  • nonlinear systems
  • power system measurement
  • inter area oscillations
  • nonlinear damping computation
  • envelope detection
  • Hilbert transform
  • power system wide area monitoring
  • system stability
  • linear model
  • nonlinear system
  • nonstationary oscillatory signal
  • instantaneous damping
  • Power system monitoring
  • Instantaneous damping
  • Damping ratio
  • Second order systems
  • Inter area oscillation

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    Laila, D. S., Larsson, M., Pal, B. C., & [Unknown], P. K. (2009). Nonlinear damping computation and envelope detection using Hilbert transform and its application to power systems wide area monitoring. Paper presented at IEEE Power & Energy Society General Meeting, Calgary, Canada. https://doi.org/10.1109/PES.2009.5275889