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

Anh Tan Nguyen; Dong-Choon Lee

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

Anh Tan Nguyen

Dong-Choon Lee

Vol. 20, No. 3, pp. 764-773, May 2020

10.1007/s43236-020-00067-x

Cascaded SOGI

Sensorless control

Squirrel-cage induction generator

Wind turbine system

Abstract

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.

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Cite this article

[IEEE Style]

A. T. Nguyen and D. Lee, "Sensorless vector control of SCIG-based small wind turbine systems using cascaded second-order generalized integrators," Journal of Power Electronics, vol. 20, no. 3, pp. 764-773, 2020. DOI: 10.1007/s43236-020-00067-x.

[ACM Style]

Anh Tan Nguyen and Dong-Choon Lee. 2020. Sensorless vector control of SCIG-based small wind turbine systems using cascaded second-order generalized integrators. Journal of Power Electronics, 20, 3, (2020), 764-773. DOI: 10.1007/s43236-020-00067-x.