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Adaptive Over-Current Relay Coordination Based on Multi-Agent System : A Case Study on Transmission Line Outage

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2 Author(s)
Uthitsunthorn, D. ; Dept. of Electr. Eng. Technol., Buriram Rajabhat Univ., Buriram, Thailand ; Kulworawanichpong, T.

This paper presents a conceptual design of multi-agent for adaptive over-current relay coordination. In some temporary circumstances e.g. line outage, connecting a new or existing generator, etc., may lead to mal-operation of pre-coordinated protective devices in power systems. The set of protective relays must be enhanced with ability of adaptation in such a way that their parameter setting is adjusted. The multi-agent system proposed here is to develop optimal relay coordination adaptively according to environment changes. In this paper, Java Agent Development (JADE) software package was used for implementing the proposed multi-agent system. The communication process and data transfer can be simulated and monitored by using the sniffer agent GUI that helps us to confirm the use of multi-agent systems for an application of adaptive relay coordination. The 6-bus test power system was used for test. The results showed that the use of the multi-agent system is very useful in adaptive over-current relay coordination.

Published in:

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Date of Conference:

27-29 March 2012