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http://dx.doi.org/10.5370/KIEE.2016.65.12.1979

Voltage-controlled Over-current Relay for Loop-connected Distributed Generators  

Kim, Tae-Hee (Dept. of Electrical Engineering, Myongji University)
Kang, Sang-Hee (Dept. of Electrical Engineering, Myongji University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.65, no.12, 2016 , pp. 1979-1985 More about this Journal
Abstract
A protection algorithm using a voltage-controlled overcurrent element for a looped collection circuit in a wind farm is suggested in this paper. Because the proposed algorithm uses voltage relaying signals as well as current relaying signals, any fault in the looped collection circuit can be cleared by voltage-controlled overcurrent relays located at the two adjacent relaying points, the nearest place in each direction from the fault point. The algorithm can also distinguish the external faults which occur at the outside of a wind farm from the internal faults. It means that the proposed algorithm can provide the proper ability of protection coordination to the relays in the looped collection circuits of a large wind farm. The performance of the proposed algorithm is verified under various fault conditions using PSCAD/EMTDC simulations.
Keywords
Voltage-controlled Over-current relay; Wind farm; Protection coordination; Looped collection circuit;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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2 Haslam S. J, Crossley P. A, Jenkins N, "Design and field testin of a source based protection relay for wind farms", IEEE Transactions on Power Delivery, Volume 14, Issue 3, pp.818-823, 1999   DOI
3 Young-Jin Kwon, Sang-Hee Kang, "A Protection Algorithm Discriminating Between Internal and External Faults for Wind Farms", The Transations of the Korea Institute of Electrical Engineers, Vol.56 No.5, pp. 854-859, 2007