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A Comparative Analysis of Economics of PMSG and SCSG Floating Offshore Wind Farms

Author

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  • Ga-Eun Jung

    (Department of Electrical Engineering, Changwon National University, Changwon 51140, Korea)

  • Hae-Jin Sung

    (Department of Electrical Engineering, Changwon National University, Changwon 51140, Korea)

  • Minh-Chau Dinh

    (Department of Electrical Engineering, Changwon National University, Changwon 51140, Korea)

  • Minwon Park

    (Department of Electrical Engineering, Changwon National University, Changwon 51140, Korea)

  • Hyunkyoung Shin

    (Department of Naval Architecture and Ocean Engineering, University of Ulsan, Ulsan 44610, Korea)

Abstract

The biggest obstacle to using a permanent magnet synchronous generator (PMSG) for a floating offshore wind turbine (FOWT) is the weight. A superconducting synchronous generator (SCSG) can be an alternative to this problem. In this paper, first, the weight and volume of a 10 MW class PMSG and SCSG for a large floating offshore wind farm (FOWF) were compared. Reflecting this, the economic feasibility of a 200 MW class FOWF based on a semi-submersible platform was compared and analyzed. The levelized cost of energy (LCOE) was used to compare the economics of the two types of FOWF, and the LCOE of the SCSG type FOWF was 6 (USD/MWh) more expensive than that of the PMSG type FOWF. However, if the superconducting wire price is reduced by 40% compared to the current price, the economic feasibility of the SCSG type FOWF can be secured. Considering only the weight, the SCSG type FOWF is far superior to the PMSG type FOWF. With the trend of falling superconducting wire prices and improving critical current, the SCSG type FOWF is expected to become a definite alternative to large-capacity wind farms, and the economic feasibility is expected within the next five years.

Suggested Citation

  • Ga-Eun Jung & Hae-Jin Sung & Minh-Chau Dinh & Minwon Park & Hyunkyoung Shin, 2021. "A Comparative Analysis of Economics of PMSG and SCSG Floating Offshore Wind Farms," Energies, MDPI, vol. 14(5), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1386-:d:509693
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    References listed on IDEAS

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    1. Hyeonjeong Ahn & Hyunkyoung Shin, 2020. "Experimental and Numerical Analysis of a 10 MW Floating Offshore Wind Turbine in Regular Waves," Energies, MDPI, vol. 13(10), pages 1-17, May.
    2. Lai, Chun Sing & McCulloch, Malcolm D., 2017. "Levelized cost of electricity for solar photovoltaic and electrical energy storage," Applied Energy, Elsevier, vol. 190(C), pages 191-203.
    3. Adam J. Collin & Anup J. Nambiar & David Bould & Ben Whitby & M. A. Moonem & Benjamin Schenkman & Stanley Atcitty & Paulo Chainho & Aristides E. Kiprakis, 2017. "Electrical Components for Marine Renewable Energy Arrays: A Techno-Economic Review," Energies, MDPI, vol. 10(12), pages 1-31, November.
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    Cited by:

    1. Barter, Garrett E. & Sethuraman, Latha & Bortolotti, Pietro & Keller, Jonathan & Torrey, David A., 2023. "Beyond 15 MW: A cost of energy perspective on the next generation of drivetrain technologies for offshore wind turbines," Applied Energy, Elsevier, vol. 344(C).
    2. Youngjae Yu & Thanh Dam Pham & Hyunkyoung Shin & Kwangtae Ha, 2021. "Study on the Motion Characteristics of 10 MW Superconducting Floating Offshore Wind Turbine Considering 2nd Order Wave Effect," Energies, MDPI, vol. 14(19), pages 1-14, September.

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