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Title: Improving transient behavior of a brushless doubly fed induction generator through reactive current control of grid-side converter
Authors: Memon, Ahsanullah
Mustafa, Mohd Wazir
Aman, Muhammad Naveed 
Hafeez, Abdul
Ullah, Mukhtar
Keywords: Brushless
Low voltage ride through
Renewable energy
Issue Date: 11-Jun-2021
Publisher: MDPI AG
Citation: Memon, Ahsanullah, Mustafa, Mohd Wazir, Aman, Muhammad Naveed, Hafeez, Abdul, Ullah, Mukhtar (2021-06-11). Improving transient behavior of a brushless doubly fed induction generator through reactive current control of grid-side converter. Electronics (Switzerland) 10 (12) : 1413. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Brushless doubly-fed induction generators have higher reliability, making them an at-tractive choice for not only offshore applications but also for remote locations. These generators are composed of two back-to-back voltage source converters, a grid side converter and a rotor side converter. Existing techniques use the rotor side converter for reactive current control; however, it is more suitable for stabilizing steady state behavior. In order to stabilize the voltage fluctuations at the point of common coupling (PCC) due to sudden inductive load introduction, the grid side converter may be a better choice due to faster response and higher control bandwidth. Therefore, this paper proposes a control scheme for the grid side converter to suppress the PCC voltage fluctuations when a large inductive load is suddenly connected. The proposed technique is based on an analytical model of the transient behavior of the voltage drop at the PCC. The analysis shows that reactive current control using the grid side converter introduces a double fundamental frequency component to the PCC voltage. To block this harmonic, we designed a notch filter. The simulation results in Matlab/Simulink show that the proposed technique can not only significantly reduce the voltage drop but also results in an 82% reduction in voltage distortion at the PCC. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Source Title: Electronics (Switzerland)
ISSN: 2079-9292
DOI: 10.3390/electronics10121413
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications

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