Anatomy of power system disturbances: importance sampling

The study of North American Reliability Council reports indicate that protection systems frequently play a role in the sequence of events that lead to power system disturbances. While it is generally believed that the self-monitoring and self-checking feature of digital relays will reduce the probab...

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Bibliographic Details
Published in:Electrical power & energy systems 1998-02, Vol.20 (2), p.147-152
Main Authors: Thorp, JS, Phadke, AG, Horowitz, SH, Tamronglak, S
Format: Article
Language:English
Subjects:
Applied sciences
disturbances
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
importance sampling
Power networks and lines
protection
reliability
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Summary:The study of North American Reliability Council reports indicate that protection systems frequently play a role in the sequence of events that lead to power system disturbances. While it is generally believed that the self-monitoring and self-checking feature of digital relays will reduce the probability of such relay involvement, there has been no qualitative evaluation of the effect of such a reduction. The technique of “importance sampling” is used to make this problem more manageable. Using the New England 39-bus system, it is shown that reducing probability of relay involvement has a significant influence on overall system reliability.
ISSN:0142-0615
1879-3517
DOI:10.1016/S0142-0615(97)00034-3