A case study on challenges for robust wide-area phasor POD

Nilanjan Ray Chaudhuri, Swakshar Ray, Rajat Majumder, Balarko Chaudhuri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

This paper illustrates the challenges towards achieving a robust phasor POD (power oscillation damping), a concept introduced and developed by ABB. A Phasor POD extracts the oscillatory part of the measured signal in the form of a phasor and applies a suitable phase shift to derive the damping control action. For a thyristor controlled series capacitor (TCSC), a phase shift of 90 degrees with respect to local power flow is recommended. However, the present case study on a simple test system with a TCSC reveals that a 90 degree phase shift on the local power does not necessarily yield the desired results. In fact, the phase shift required for satisfactory performance differs from one operating condition to another. Use of a wide-area signal (wide-area phasor POD) is shown to improve the damping functionality compared to local power flow provided an appropriate phase shift - which might not be intuitive - is given. Moreover, extraction of individual phasors out of a multi-modal signal is a challenge for practical systems exhibiting complex multi-modal behavior.

Original languageEnglish (US)
Title of host publication2009 IEEE Power and Energy Society General Meeting, PES '09
DOIs
StatePublished - Dec 17 2009
Event2009 IEEE Power and Energy Society General Meeting, PES '09 - Calgary, AB, Canada
Duration: Jul 26 2009Jul 30 2009

Publication series

Name2009 IEEE Power and Energy Society General Meeting, PES '09

Other

Other2009 IEEE Power and Energy Society General Meeting, PES '09
CountryCanada
CityCalgary, AB
Period7/26/097/30/09

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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