Title: A new fragled series resonance-bridge fault current limiter with fuzzy logic controller to enhance fault ride through capabilities in DFIG-wind farms

Authors: Preeti Verma; Seethalekshmi Kaimal; Bharti Dwivedi

Addresses: Department of Electrical Engineering, Institute of Engineering and Technology, Lucknow, 226015, India ' Department of Electrical Engineering, Institute of Engineering and Technology, Lucknow, 226015, India ' Department of Electrical Engineering, Institute of Engineering and Technology, Lucknow, 226015, India

Abstract: In the wind energy market, the doubly-fed induction generator (DFIG) is the most popular generator over the other generators. However, the noteworthy concern for DFIG-based wind farms (WFs) is to retain transient stability at fault condition and according to grid code requirements, generators should connect to the grid. Therefore, the need of some solution against the severity is essential. In this paper, a series resonance-bridge type fault current limiter (SR-BFCL) with accurate nonlinear fuzzy logic control is proposed to achieve the fault ride through (FRT) capabilities. The proposed FCL provides low-voltage ride through (LVRT) and reactive power compensation. A comparative analysis has been performed with inductive-type bridge fault current limiter (I-BFCL). Simulation results are performed in MATLAB/Simulink environment under both symmetrical and unsymmetrical faults. A quantitative analysis is reported in terms of the performance indexes that indicate the proposed FCL gives a better performance in comparison to the I-BFCL.

Keywords: doubly fed induction generator; DFIG; wind farm; WF; fault ride through; FRT; series resonance-bridge type fault current limiter; SR-BFCL; inductive type fault current limiter; I-BFCL.

DOI: 10.1504/IJETP.2021.114386

International Journal of Energy Technology and Policy, 2021 Vol.17 No.2, pp.117 - 139

Received: 05 Oct 2019
Accepted: 05 Oct 2020
Published online: 20 Apr 2021 *

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