Journal of Electrical Engineering and Technology

  • 제1권2호
  • /
  • Pages.137-144
  • /
  • 2006
  • /
  • 1975-0102(pISSN)
  • /
  • 2093-7423(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지
DOI QR코드

DOI QR Code

Application of Fault Location Method to Improve Protect-ability for Distributed Generations

  • Jang Sung-Il (HANKOOK IED Co.) ;
  • Lee Duck-Su (Next-Generation Power Technology Center, Myongji University) ;
  • Choi Jung-Hwan (Taegwang E&C) ;
  • Kang Yong-Cheol (Division of Electronics and Information Engineering, Chonbuk National University) ;
  • Kang Sang-Hee (Department of Electrical Engineering, Myongji University) ;
  • Kim Kwang-Ho (Department of Electrical and Computer Engineering, Kangwon National University) ;
  • Park Yong-Up (Distribution Engineering Group of Power Distribution Laboratory, KEPRI)
  • 발행 : 2006.06.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper proposes novel protection schemes for grid-connected distributed generation (DG) units using the fault location algorithm. The grid-connected DG would be influenced by abnormal distribution line conditions. Identification of the fault location for the distribution lines at the relaying point of DG helps solve the problems of the protection relays for DG. The proposed scheme first identifies fault locations using currents and voltages measured at DG and source impedance of distribution networks. Then the actual faulted feeder is identified, applying time-current characteristic curves (TCC) of overcurrent relay (OCR). The method considering the fault location and TCC of OCR might improve the performance of the conventional relays for DG. Test results show that the method prevents the superfluous operations of protection devices by discriminating the faulted feeder, whether it is a distribution line where DG is integrated or out of the line emanated from the substation to which the DGs are connected.

키워드

참고문헌

  1. P. P. Barker, and R. W. de Mello, 'Determining the impact of distributed generation on power systems: Partl-Radial distribution systems,' IEEE, Power Engineering Society Summer meeting, Vol. 3, pp. 1645-1 656,2000
  2. Thomas Ackermann, Goran Andersson, Lennart Soder, 'Electricity market regulations and their impact on distributed generation,' IEEE International Con. on Electric Utility Deregulation and Restructuring and Power Technologies, 2000, City University, London, pp. 608 - 613, April 2000
  3. W. J. S. Rogers, 'The parallel operation of generating plant within a regional electricity company's distribution network,' IEE Colloquium on the parallel operation of generating plant within a public electricity network, Chester, UK, Feb. 1991
  4. Jiang Fan and S. K. Salman, 'The effect of integration of wind farms into utility network on voltage control due to the co-ordination of AVC relays,' Proc. of the 41h International Con. on Advances in Power System Control, Operation and Management, APSCOM-97, Hong Kong, pp. 260- 265, November 1997
  5. D. T. Rizy, W. T. Jewell, and J. P. Stovall, 'Operational and design considerations for electric distribution systems with dispersed storage and generation (DSG),' IEEE Trans. on Power Apparatus and Systems, Vol. PAS-104, No. 10, pp. 2864-2871, October 1985 https://doi.org/10.1109/TPAS.1985.319131
  6. Roger C. Dugan and Dwight T. Rizy, 'Electric distribution protection problems associated with the interconnection of small, dispersed generation devices,' IEEE Trans. on Apparatus and Systems, Vol. PAS-103, No. 6, pp. 1121-1 127, June 1984 https://doi.org/10.1109/TPAS.1984.318438
  7. H. B-L Lee, S. E. Chase, and R. D. Dugan, 'Overvoltage considerations for interconnecting dispersed generators with wye-grounded distribution feeders,' IEEE Trans. on Power Apparatus and Systems, pp. 3587-3594, December 1984
  8. Cooper Power Systems, Electrical distribution system protection, 3rd ed. Cooper Industries, 1990
  9. Standards Coordinating Committee 21, IEEE Std. 1547-2003: IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems, 2003
  10. Myeon-Song Choi, Seung-Jae, Duck-Su Lee, and Bo- Gun Jin, 'A new fault location algorithm using direct circuit analysis for distribution systems,' IEEE Transactions on Power Delivery, Vol. 19, Issue, pp. 35-41, Jan. 2004 https://doi.org/10.1109/TPWRD.2003.820433
  11. Manitoba HVDC Research Centre, PSCADIEMTDC user's manual. Canada, 1986