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A new application of graph theory for coordination of protective relays

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2 Author(s)
S. M. Madani ; Eindhoven Univ. of Technol., Netherlands ; H. Rijauto

The coordination of protective relays of multiloop networks is a tedious and time consuming process. The complicated part of this process is the determination of a set of relays referred to as the break-point set (BPS), with a minimal size to start the coordination procedure. This letter introduces a new graph-theoretical approach to determine the BPS. This method reduces the complexity of the problem, by exploiting the available sparsity of the dependencies among relays in protection systems.

Published in:

IEEE Power Engineering Review  (Volume:18 ,  Issue: 6 )