Optimal Locations for Protection System Enhancement: A Simulation of Cascading Outages

Author

Wang, Huifang ; Thorp, James S.

Author_Institution

Comell University, Ithaca, NY

Volume

21

Issue

7

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

67

Lastpage

67

Abstract

Recent studies have shown that hidden failures in protective devices have a great impact on power system reliability. In this paper, we provide the definitions of vulnerability and reliability of protection systems to numerically characterize this impact. A random search algorithm based on power system heuristics is given for fast rare-event simulation of consecutive relaying malfunctions in bulk power systems. We also propose an economical system upgrading strategy that can best enhance the protection system reliability under a limited budget. Finally, we present the result of a case study on the New York Power Pool (NYPP) 3000-bus system.

Keywords

Bibliographies; Power generation economics; Power markets; Power system economics; Power system protection; Power system relaying; Power system reliability; Power system simulation; Protective relaying; Search methods; Power system reliability; heuristic search; hidden failures; power system protection; power system relaying; random search; rare events; search methods; vulnerability;

fLanguage

English

Journal_Title

Power Engineering Review, IEEE

Publisher

ieee

ISSN

0272-1724

Type

jour

DOI

10.1109/MPER.2001.4311473

Filename

4311473