The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Maximum Installable DG Capacity According to Operation Methods of Voltage Regulator in Distribution Systems

배전계통의 전압조정기 운영방법에 따른 분산형전원 최대 도입 용량 산출

  • Published : 2009.07.01
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Abstract

Stable and sustainable power supply means maintaining a certain level of power quality and service while securing energy resource and resolving environmental issues. Distributed generation (DG) has become an essential and indispensable element from environmental and energy security perspectives. It is known that voltage violation is the most important constraint for load variation and the maximum allowable DG. In distribution system, sending voltage from distribution substation is regulated by ULTC (Under Load Tap Changer) designed to maintain a predetermined voltage level. ULTC is controlled by LDC (Line Drop Compensation) method compensating line voltage drop for a varying load, and the sending voltage of ULTC calls for LDC parameters. The consequence is that the feasible LDC parameters considering variation of load and DG output are necessary. In this paper, we design each LDC parameters determining the sending voltage that can satisfy voltage level, decrease ULTC tap movement numbers, or increase DG introduction. Moreover, the maximum installable DG capacity based on each LDC parameters is estimated.

Keywords

References

  1. N.D. Hatziargyriou & A.P.S Meliopoulos, 'Distributed energy sources : Technical challenges', IEEE-PES Winter Meeting 2002, vol 2, pp.1017-1022, 2002 https://doi.org/10.1109/PESW.2002.985163
  2. J.A.P. Lopes, 'Integration of dispersed generation on distribution network-impact studies', IEEE-PES Winter Meeting 2002, vol 1, pp.323-328, 2002 https://doi.org/10.1109/PESW.2002.985006
  3. Embedded Generation and Network Management Issues, DTI Publication, 2000
  4. 김미영, 노대식, 오용택, 안재윤, 김재언, 김옹상, '분산형전원이 도입된 배전계통의 최적전압조정방안에 관한연구' 대한 전기학회 논문지, 5호, 제54A권 pp.251-258, 2005. 5
  5. Jae-eon Kim. J, Hajime Kita, Tetsuo Tezuka, and Y oshikazu Nishikawa, 'Methods of determining introduction limits of dispersed generation systems in a distribution system', Electrical Engineering in Japan, vol. 120, no. 4, pp.48-58, 1997 https://doi.org/10.1002/(SICI)1520-6416(199709)120:4<48::AID-EEJ7>3.0.CO;2-P
  6. Miyoung Kim, Ryoichi Hara, Hiroyuki Kita, 'Design of the Optimal ULTC Parameters in Distribution System with Distributed Generations', IEEE Trans. power systems, vol. 24, no. 1, pp.297-305, February. 2009 https://doi.org/10.1109/TPWRS.2008.2004830