KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
권호 표지
DOI QR코드

DOI QR Code

Economic Assessments of LFAC and HVDC Transmissions for Large Offshore Wind Farms

  • Park, Taesik (Department of Electrical Eng., Mokpo National Univ.) ;
  • Kwak, Nohong (Department of Electrical Eng., Mokpo National Univ.) ;
  • Moon, Chaeju (Department of Electrical Eng., Mokpo National Univ.) ;
  • Cha, Seungtae (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Kwon, Seongchul (KEPCO Research Institute, Korea Electric Power Corporation)
  • Published : 2015.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Offshore wind farms extend a distance from an onshore grid to increase their generating power, but long distance and high power transmissions raise a lot of cost challenges. LFAC (Low Frequency AC) transmission is a new promising technology in high power and low cost power transmission fields against HVDC (High Voltage DC) and HVAC (High Voltage AC) transmissions. This paper presents an economic comparison of LFAC and HVDC transmissions for large offshore wind farms. The economic assessments of two different transmission technologies are analyzed and compared in terms of wind farm capacities (600 MW and 900 MW) and distances (from 25 km to 100 km) from the onshore grid. Based on this comparison, the economic feasibility of LFAC is verified as a most economical solution for remote offshore wind farms.

Keywords

References

  1. ABB, "HVDC Transmission An economical complement to ac transmission," 2009.01
  2. Raymundo E., "Offshore Wind Farm Grid Integration by VSC Technology with LCC-Based HVDC Transmission," IEEE Trans. On Sustainable Energy, Vol.3, No. 4, 2012. 10
  3. Michael P. Bahrman, "The ABCs of HVDC Transmission Technologies," IEEE power & energy magazine, 2007.04
  4. Rajat Majumder, "High -Voltage DC on the New Power Transmission Highway," IEEE power & energy magazine, 2012.11
  5. Hualei Wang, "The advantages and disadvantages of using HVDC to interconnect AC networks," UPEC2010, 2010.09
  6. Willis Long, "HVDC Transmission: Yesterday and Today," IEEE power & energy magazine, 2007.04
  7. SIEMENS, "High Voltage Direct Current Transmission-Proven Technology for Power Exchange," 2011
  8. Keeli Anupama, "Low frequency transmission for remote power generating systems", Georgia Tech., 2011
  9. M. Zubiagal, G. Abad, "Frequency responses of AC transmission line," University of Mondragon, Ingeteam Corporation, Spain
  10. Lazaros P. Lazaridis, "Economic comparison of HVAC and HVDC solutions for Large Offshore wind farms underspecial consideration of reliability," Royal Institute of Technology, 2005
  11. ABB, "Middletown-Norwalk Transmission Project-Technical description of VSC HVDC Converer and cable technology," ABB power Technologies, 2004
  12. ESS Inc, "Traqnsmission issues for offshre wind farms with specific application to sitting of the proposed cape wind project," Consultants to Cape Wind Associates, 2003
  13. S Cole, D. Van Hertem, I. Pardon and R. Belmans, "Randstad HVDC," Research group Electa, Dept. of Electrical Engineering, KULeuven, Belgium, 2006
  14. David Larsson, "Facts and HVDC for grid connection of Large Wind Farms," ABB, Power_Gen Europe, 2005
  15. Lundberg S., "Configuration Study of Large Wind Parks," Chalmers University of Technology, 2003