Searching for Plausible N-k Contingencies Endangering Voltage Stability

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Johannes Tilman Gabriel Weckesser - Guest lecturer

Presentation of a novel search algorithm using time-domain simulations to identify plausible N-k contingencies endangering voltage stability. Starting from an initial list of disturbances, progressively more severe contingencies are investigated. After simulation of a N-k contingency, the simulation results are assessed. If the system response is unstable, a plausible harmful contingency sequence has been found. Otherwise, components affected by the contingencies are considered as candidate next event leading to N-(k+1) contingencies. This implicitly takes into account hidden failures of component protections. The performance of the proposed search algorithm is compared to a brute-force algorithm and demonstrated on the IEEE Nordic test system.
27 Sep 2017

Event (Conference)

Title2017 IEEE PES Innovative Smart Grid Technologies Conference Europe
Abbreviated title2017 ISGT-Europe
Date26/09/201729/09/2017
LocationPolitecnico di Torino
CityTorino
CountryItaly
Degree of recognitionInternational event

    Keywords

  • N-k contingencies, cascading outages, protection hidden failures, voltage instability, time-domain simulation

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