Python PSS/E Simulation to Test Efficacy of Proposed PMU Based WAMS and Potential WAMPAC Applications

Paul Brogan*, John Morrow, David Laverty, Robert Best

*Corresponding author for this work

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

Abstract

A PSS/E 32 model of a real section of the Northern Ireland electrical grid was dynamically controlled with Python 2.5. In this manner data from a proposed wide area monitoring system was simulated. The area is of interest as it is a weakly coupled distribution grid with significant distributed generation. The data was used to create an optimization and protection metric that reflected reactive power flow, voltage profile, thermal overload and voltage excursions. Step changes in the metric were introduced upon the operation of special protection systems and voltage excursions. A wide variety of grid conditions were simulated while tap changer positions and switched capacitor banks were iterated through; with the most desirable state returning the lowest optimization and protection metric. The optimized metric was compared against the metric generated from the standard system state returned by PSS/E. Various grid scenarios were explored involving an intact network and compromised networks (line loss) under summer maximum, summer minimum and winter maximum conditions. In each instance the output from the installed distributed generation is varied between 0 MW and 80 MW (120% of installed capacity). It is shown that in grid models the triggering of special protection systems is delayed by between 1 MW and 6 MW (1.5% to 9% of capacity), with 3.5 MW being the average. The optimization and protection metric gives a quantitative value for system health and demonstrates the potential efficacy of wide area monitoring for protection and control.
Original languageEnglish
Title of host publication2013 48th International Universities' Power Engineering Conference (UPEC)
Place of PublicationNEW YORK
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
DOIs
Publication statusPublished - 2013
Event48th International Universities Power Engineering Conference (UPEC) - Dublin, Ireland
Duration: 02 Sep 201305 Sep 2013

Conference

Conference48th International Universities Power Engineering Conference (UPEC)
CountryIreland
CityDublin
Period02/09/201305/09/2013

Keywords

  • Distributed power generation
  • PMU
  • power system protection
  • power system simulation
  • PSS/E
  • Python
  • Special Protection Systems
  • WAMPAC
  • WAMS

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