PUBLICATIONS
Paper
[International Journals] Sol-Bin Lee, Kyo-Beum Lee, Dong-Choon Lee, and Jang-Mok Kim, “An Improved Control Method for a DFIG in a Wind Turbine under an Unbalanced Grid Voltage Condition,” Journal of Electrical Engineering & Technology, vol. 5, no. 4, pp. 614–622, Dec. 2010. -SCIE
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This paper presents a control method, which reduces the pulsating torque and DC voltage problems of a doubly fed induction
generator (DFIG)-based wind turbine system. To reduce the torque and power ripple, a current control scheme consisting of a
proportional integral (PI) controller is presented in a positive synchronously rotating reference frame, which is capable of providing
precise current control for a rotor-side converter with separated positive and negative components. The power theory can reduce
the oscillation of the DC-link voltage in the grid-side converter. In this paper, the generator model is examined, and simulation results
are obtained with a 3 kW DFIG-based wind turbine system to verify the proposed control strategy.
