An on-line relay coordination algorithm for adaptive protection using linear programming technique

Bhargab Chattopadhyay

doi:10.1109/61.484013

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An on-line relay coordination algorithm for adaptive protection using linear programming technique

1996-01-01

251

PRE

Bhargab Chattopadhyay *

Sachdev, MS

T.S. Sidhu

DOI：10.1109/61.484013

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Original request for help

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Abstract

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An adaptive system for protecting a distribution network should determine and implement relay settings that are most appropriate for the prevailing stare of the power system. This paper presents a technique for determining coordinated relay settings. The technique uses the Simplex two-phase method; Phase I determines whether the constraints selected for illustrating the conditionality between primary and back up relays are feasible, and Phase II finds the optimal relay settings. A looped distribution system, protected by directional overcurrent relays, was used for testing the technique. The tests were conducted in a laboratory environment; some results from those tests are reported in the paper.