A methodology for vulnerability assessment of backup protection under cascading failures

Author

Yang, W.H. ; Bi, T.S. ; Huang, S.F. ; Xue, A.C. ; Yang, Q.X.

Author_Institution

Key Lab. of Power Syst. Protection, North China Electr. Power Univ., Beijing, China

fYear

2010

fDate

20-22 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

To avoid undesired operation of backup protection caused by load encroachment under cascading failures, the methodology for vulnerability assessment of backup protection is studied. In this paper, the vulnerability assessment of backup protections is formulated as a mixed integer nonlinear programming problem, which is solved by the binary particle swarm optimization approach. The measurement index for assessing the vulnerability of backup protection is given as well. The simulation results on New England 39-bus system demonstrate that the proposed method can effectively assess the vulnerability of backup protection under cascading failures.

Keywords

nonlinear programming; particle swarm optimisation; power system protection; New England 39 bus system; backup protection; binary particle swarm optimization; load encroachment; mixed integer nonlinear programming problem; vulnerability assessment; Indexes; Load flow; Particle swarm optimization; Power system faults; Power system protection; Simulation; backup protection; cascading failures; power system; vulnerability;

fLanguage

English

Publisher

ieee

Conference_Titel

Critical Infrastructure (CRIS), 2010 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8080-7

Type

conf

DOI

10.1109/CRIS.2010.5617577

Filename

5617577