Two primary challenges with a wind-turbine-based doubly-fed induction generator (DFIG) are low voltage ride-through capability and power fluctuations. To face with these challenges, in this paper, a new method using a superconducting magnetic energy storage (SMES) coil with fault current limiting function (SMES-FCL) is proposed. In this research, a previous configuration for a SMES-FCL is modified. In the modified topology, the number of components is minimized and a fuzzy-based controller (FC) with minimal rules for the SMES is suggested. Because of element minimization, the proposed method has a less implementation cost. Also, using the FC in the SMES leads to high accuracy and robustness, and a fast transient of the control system. The efficiency of the proposed method is supported by extensive simulations in MATLAB/Simulink.
Enhancing LVRT Capability and Smoothing Power Fluctuations of a DFIG-based Wind Farm in a DC Microgrid
Article (Journal)
An Enhanced LVRT Scheme for DFIG-based WECSs under Both Balanced and Unbalanced Grid Voltage Sags
Online Contents | 2017
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