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A new algorithm to locate power-quality event source with improved realization of distributed monitoring scheme

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6 Author(s)
Dong-Jun Won ; Sch. of Electr. Eng., INHA Univ., Incheon, South Korea ; Il-Yop Chung ; Joong-Moon Kim ; Seung-Il Moon
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This paper presents a systematic algorithm to locate the power-quality (PQ) event source in the distributed monitoring system. Firstly, this paper proposes an improved realization of a distributed monitoring scheme for PQ diagnosis. The algorithm utilizes the topology of power system and the direction of PQ events. As a result, the coverage matrix and the direction matrix are constructed. The algorithm determines the candidate areas for an event source by manipulating these two matrices. For more accurate results, it calculates the distance from the PQ monitor to the location of the PQ event source. It is explained with an illustrative example and is applied to IEEE test feeder in order to validate the accuracy. The proposed algorithm can replace the expert's analysis on the PQ event source with an automated computer program.

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Power Delivery, IEEE Transactions on  (Volume:21 ,  Issue: 3 )