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

환상형 분산전원 단지 보호를 위한 전압제어 과전류 계전기

  • Kim, Tae-Hee (Dept. of Electrical Engineering, Myongji University) ;
  • Kang, Sang-Hee (Dept. of Electrical Engineering, Myongji University)
  • Received : 2014.12.09
  • Accepted : 2016.10.31
  • Published : 2016.12.01

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

References

  1. 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 https://doi.org/10.1109/61.772320
  2. 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
  3. Bin Li, Xuan Yu, Zhiqian Bo, "Protection Schemes for Closed Loop Distribution Network with Distributed Generator", Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on, 2009

Cited by

  1. Current Limiting and Recovery Characteristics of a Trigger-Type SFCL Using Double Quench vol.28, pp.3, 2018, https://doi.org/10.1109/TASC.2018.2799199
  2. Study on Operational Characteristics of OCR with Voltage Component in a Power Distribution System with SFCL pp.2092-7592, 2019, https://doi.org/10.1007/s42341-019-00101-1