A new method for direct computation of critical clearing time for transient stability analysis

Naoto Yorino*, Ardyono Priyadi, Yutaka Sasaki, Yoshifumi Zoka, Hiroaki Sugihara

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

This paper presents a new computation method for transient stability analysis for electric power systems. Different from existing methods, a minimization problem is formulated for obtaining critical clearing time (CCT). The method is based on the computation of a trajectory on the stability boundary, which is referred to as critical trajectory in this paper. The critical trajectory is defined as the trajectory that starts from a point on a fault-on trajectory and reaches a critical point of losing synchronism. The new proposal includes the critical conditions for synchronism and the unified minimization formulation using a modified trapezoidal formulation for numerical integration. It will be demonstrated that the solution of the minimization problem successfully provides the exact CCT that agrees with the conventional numerical simulation method.

Original languageEnglish
Title of host publication2010 IREP Symposium - Bulk Power System Dynamics and Control - VIII, IREP2010
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 IREP Symposium - Bulk Power System Dynamics and Control - VIII, IREP2010 - Rio de Janeiro, Brazil
Duration: 1 Aug 20106 Aug 2010

Publication series

Name2010 IREP Symposium - Bulk Power System Dynamics and Control - VIII, IREP2010

Conference

Conference2010 IREP Symposium - Bulk Power System Dynamics and Control - VIII, IREP2010
Country/TerritoryBrazil
CityRio de Janeiro
Period1/08/106/08/10

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