Autonomous optimal coordination scheme in protection system of power distribution network by using multi-agent concept |
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| Authors: | LEE Seung-Jae KIM Tae-Wan LEE Gi-Young |
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| Institution: | Next-Generation Power System Technology Center,Myongji University,Yongin,449-728,Kyunggido,Korea |
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| Abstract: | A protection system using a multi-agent concept for power distribution networks is pro- posed. Every digital over current relay(OCR) is developed as an agent by adding its own intelli- gence, self-tuning and communication ability. The main advantage of the multi-agent concept is that a group of agents work together to achieve a global goal which is beyond the ability of each individual agent. In order to cope with frequent changes in the network operation condition and faults, an OCR agent, proposed in this paper, is able to detect a fault or a change in the network and find its optimal parameters for protection in an autonomous manner considering information of the whole network obtained by communication between other agents.Through this kind of coordi- nation and information exchanges, not only a local but also a global protective scheme is com- pleted. Simulations in a simple distribution network show the effectiveness of the proposed protec- tion system. |
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| Keywords: | multi-agent system over current relay(OCR) communication protection of distribution network |
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