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

• Published in: IEEE transactions on power delivery Vol. 21; no. 3; pp. 1641 - 1647
• Main Authors: WON, Dong-Jun, CHUNG, Il-Yop, KIM, Joong-Moon, MOON, Seung-Il, SEO, Jang-Cheol, CHOE, Jong-Woong
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.07.2006; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithm design and analysis; Algorithms; Applied sciences; Computer programs; Computerized monitoring; Costs; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; Fault diagnosis; fault location; Feeders; Information analysis; Mathematical analysis; Matrices; Miscellaneous; Monitoring; Monitors; Moon; Operation. Load control. Reliability; power distribution; Power electronics, power supplies; Power networks and lines; Power quality; Power system analysis computing; power system harmonics; Power systems; Testing; Testing. Reliability. Quality control; Topology; fault location; Power system harmonics; Power system stability; Power electronics; Distributed system; Algorithm; Monitoring system; Fault diagnosis; Computer program; Electrical network; Power distribution; power quality; Defect localization; Energy quality; IEEE standards; Diagnostic aid; Service quality; Fault diagnostic; Monitoring; Defect detection
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/TPWRD.2005.858810

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.