Overcurrent relay coordination using MINLP technique

Achieving to minimum operation time and coordination among all relays is vital issue, hence relay settings must be adjusted to satisfy these subjects. For optimal coordination of overcurrent relays, linear programming (LP) techniques such as simplex, two-phase simplex, dual simplex and mixed integer...

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Bibliographic Details
Published in2011 19th Iranian Conference on Electrical Engineering pp. 1 - 6
Main Authors Gholinezhad, Javad, Mazlumi, Kazem, Farhang, Peyman
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2011
Subjects
Circuit faults
Directional Overcurrent relays
Generators
IP networks
Linear programming
MINLP technique
Optimal coordination
Optimization
Protection
PSO algorithm
Relay settings
Relays
Short-circuit currents
Software algorithms
Transformers
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ISBN1457707306
9781457707308
ISSN2164-7054

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Summary:Achieving to minimum operation time and coordination among all relays is vital issue, hence relay settings must be adjusted to satisfy these subjects. For optimal coordination of overcurrent relays, linear programming (LP) techniques such as simplex, two-phase simplex, dual simplex and mixed integer nonlinear programming (MINLP) have been used. In MINLP technique, current setting and time multiplier setting have unknown values and must be calculated with consideration their constraints. Heuristic techniques are best solutions to solve these problems. In this paper, The MINLP technique is applied to solve the relay coordination problem based on PSO algorithm, which is one of the capable heuristic techniques to solve constrained optimization problems.
ISBN:1457707306
9781457707308
ISSN:2164-7054