Optimal overcurrent relay coordination in distribution system

Author

Singh, Manohar ; Panigrahi, B.K. ; Abhyankar, A.R.

Author_Institution

Dept. of Electr. Eng., IIT Delhi, Delhi, India

fYear

2011

fDate

28-30 Dec. 2011

Firstpage

1

Lastpage

6

Abstract

Coordination of overcurrent relays in a meshed distribution system is a challenge task for the protection engineers. Initially it was done manually. Linear and non-linear programming optimizing techniques are very frequently used for Coordination of overcurrent relays. Presently artificial intelligence is applied for optimal co-ordination of Overcurrent (OC) relays. This paper discusses application of genetic algorithm for optimal coordination of OC relays in a loops distribution system. Combination of primary and backup relay is chosen by using graph theory, to avoid misoperation of relays.

Keywords

artificial intelligence; genetic algorithms; graph theory; linear programming; nonlinear programming; overcurrent protection; power distribution protection; OC relay; artificial intelligence; backup relay; genetic algorithm; graph theory; linear programming optimizing technique; loop distribution system; meshed distribution system; nonlinear programming optimizing technique; optimal overcurrent relay coordination; protection engineer; relay misoperation; Biological cells; Fault currents; Genetic algorithms; Graph theory; Linear programming; Optimization; Relays; Distribution system; genetic algorithm graph theory; meshed; overcurrent relays;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy, Automation, and Signal (ICEAS), 2011 International Conference on

Conference_Location

Bhubaneswar, Odisha

Print_ISBN

978-1-4673-0137-4

Type

conf

DOI

10.1109/ICEAS.2011.6147214

Filename

6147214