Journal of Power Electronics

  • 제20권3호
  • /
  • Pages.764-773
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  • 2020
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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DOI QR코드

DOI QR Code

Sensorless vector control of SCIG-based small wind turbine systems using cascaded second-order generalized integrators

  • Nguyen, Anh Tan (Department of Electrical Engineering, Yeungnam University) ;
  • Lee, Dong-Choon (Department of Electrical Engineering, Yeungnam University)
  • 투고 : 2019.12.16
  • 심사 : 2020.02.17
  • 발행 : 2020.05.20
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, a novel sensorless control scheme for SCIG-based wind turbine systems, which utilizes cascaded second-order generalized integrators (SOGIs), is proposed. The DC offset and harmonics in the estimated rotor flux can be significantly reduced since the cascaded SOGI behaves like an adaptive filter. The stator frequency, which is regarded as the tuning frequency of the SOGI, is estimated from the amplitude differences among the cascaded SOGI outputs by a PI controller. Simulation and experimental results have verified the validity of the proposed sensorless scheme under wind speed variations.

키워드

과제정보

This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (no. 20173030024770).

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