Title :
Optimal coordination of microprocessor based directional overcurrent relays
Author_Institution :
Masdar Inst. of Sci. & Technol.
Abstract :
The paper presents a new problem formulation for coordinating microprocessor based directional overcurrent relays in an interconnected power system. Unlike previous formulations, the proposed problem formulation takes into account the discrete nature of pickup current settings and the available time-current characteristics of the relay. The coordination problem is formulated as a mixed integer nonlinear programming (MINLP) problem and is solved using the DICOPT solver in GAMS.
Keywords :
integer programming; microprocessor chips; nonlinear programming; power system interconnection; semiconductor relays; DICOPT solver; GAMS; directional overcurrent relays; interconnected power system; microprocessor; mixed integer nonlinear programming problem; optimal coordination; pickup current settings; time-current characteristics; Decision support systems; Microprocessors; Relays; Coordination; Directional overcurrent relays; Fault current; Protective relaying;
Conference_Titel :
Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-1642-4
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2008.4564541
