An efficient and robust case sorting for algorithm for transient stability assessment

Yusheng Xue, Tiangang Huang, Kang Li, Zhaoyang Dong, Dong Yue, Feng Xue, Jie Huang

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

10 Citations (Scopus)


An efficient and robust case sorting algorithm based on Extended Equal Area Criterion (EEAC) is proposed in this paper for power system transient stability assessment (TSA). The time-varying degree of an equivalent image system can be deduced by comparing the analysis results of Static EEAC (SEEAC) and Dynamic EEAC (DEEAC), the former of which neglects all time-varying factors while the latter partially considers the time-varying factors. Case sorting rules according to their transient stability severity are set combining the time-varying degree and fault messages. Then a case sorting algorithm is designed with the “OR” logic among multiple rules, based on which each case can be identified into one of the following five categories, namely stable, suspected stable, marginal, suspected unstable and unstable. The performance of this algorithm is verified by studying 1652 contingency cases from 9 real Chinese provincial power systems under various operating conditions. It is shown that desirable classification accuracy can be achieved for all the contingency cases at the cost of very little extra computational burden and only 9.81% of the whole cases need to carry out further detailed calculation in rigorous on-line TSA conditions.
Original languageEnglish
Title of host publication2015 IEEE Power & Energy Society General Meeting
Number of pages5
Publication statusPublished - Jul 2015
EventIEEE Power & Energy Society General Meeting - Colorado, Denver, United States
Duration: 27 Jul 201531 Jul 2015


ConferenceIEEE Power & Energy Society General Meeting
Country/TerritoryUnited States
Internet address


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