Critical Trajectory Method for Transient Stability Analysis

This paper proposes a method for transient stability analysis for multi-machine electric power systems. Different from existing methods, a minimization problem with boundary values is formulated for obtaining critical conditions for transient stability, where a new numerical integration method is de...

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Bibliographic Details
Published in2008 International Conference on Computer and Electrical Engineering pp. 291 - 295
Main Authors Priyadi, A., Yorino, N., Jha, D.K., Zoka, Y., Sasaki, Y., Yasuda, H., Kakui, H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2008
Subjects
Boundary value problems
CCT
critical trajectory
multi-machine
Numerical simulation
Power system analysis computing
Power system dynamics
Power system modeling
Power system simulation
Power system stability
Power system transients
Stability analysis
Transient analysis
Trasient stability
UEP
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Summary:This paper proposes a method for transient stability analysis for multi-machine electric power systems. Different from existing methods, a minimization problem with boundary values is formulated for obtaining critical conditions for transient stability, where a new numerical integration method is developed by modifying the trapezoidal formula to solve effectively the boundary value problem. The proposed method is to compute directly a trajectory on the stability boundary, which is referred to as critical trajectory in this paper. The critical trajectory to be obtained is the trajectory that starts from a point on a fault-on trajectory and reaches a critical point such as an Unstable Equilibrium Point (UEP), or more exactly, Controlling UEP (CUEP). The solution of the minimization problem provides the critical trajectory and the exact Critical Clearing Time (CCT) without major approximation.
ISBN:0769535046
9780769535043
DOI:10.1109/ICCEE.2008.11