An analytical approach for stochastic assessment of balanced and unbalanced voltage sags in large systems

In this paper, voltage sags produced by balanced and unbalanced short circuits are analyzed by means of a new analytical method. The main feature of this approach is that contrary to the fault positions method, it does not require a preassignation of discrete fault positions along the lines. The dev...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2006-07, Vol.21 (3), p.1493-1500
Main Authors: Juarez, E.E., Hernandez, A.
Format: Article
Language:English
Subjects:
Algorithms
Applied sciences
Assessments
Balancing
Circuit faults
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Faults
Industrial power systems
Mathematical analysis
Miscellaneous
Monitoring
Networks
Operation. Load control. Reliability
Power networks and lines
Power quality
power system
Power system analysis computing
Power system faults
probabilistic power system methods
Robotics and automation
Short circuits
Stochastic processes
Stochastic systems
stochastic techniques
System performance
Testing. Reliability. Quality control
Voltage sags
voltage sags (dips)
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Description
Summary:In this paper, voltage sags produced by balanced and unbalanced short circuits are analyzed by means of a new analytical method. The main feature of this approach is that contrary to the fault positions method, it does not require a preassignation of discrete fault positions along the lines. The developed algorithm has been applied to the 24-buses IEEE Reliability Test System (RTS) and to a real transmission system to illustrate its application. Results are analyzed and compared with the fault positions method. The mathematical formulation of the proposed approach is straightforward and different fault distributions along the lines can be effortlessly considered. The proposed method is adequate for the analysis of any size networks.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2005.860266