Fault Ride Through Technique for DFIG-based Wind Turbines Under Grid Three-phase Faults

Date
2018-11
Authors
Makolo, P
Justo, JJ
Mwasilu, F
Zamora, R
Supervisor
Item type
Conference Contribution
Degree name
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract

In modern power systems with increasing penetration of wind turbines (WTs), improvement of low voltage ride through (LVRT) capability of WTs equipped with doubly-fed induction generators (DFIGs) is an important topic. Thus, this paper proposes an LVRT strategy and compares its performance with a widely used conventional LVRT strategy. The proposed strategy is designed with a capacitor connected in series with an inductor and both are connected in parallel to a resistor. This configuration is then connected to the ac side of the rotor side converter (RSC) via an R-L circuit. To validate the performance of the proposed scheme, three phase fault condition is simulated and analysed. Based on simulation results obtained in MATLAB/Simulink, there is significant improvement achieved in the stated objectives compared to the conventional LVRT scheme.

Description
Keywords
Conventional crowbar scheme; Doubly-fed induction generator (DFIG); Fault ride through (FRT); Low voltage ride through (LVRT); Wind turbines (WTs)
Source
In 2018 Australasian Universities Power Engineering Conference (AUPEC) (pp. 1-5). IEEE.
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