Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme

Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme

The major aim for achieving the successful synchronization of a wind turbine system to the grid is to mitigate electrical and mechanical stresses on the wind generator. During transient state, the gearbox, shaft, and rotor of the wind generator could be damaged due to mechanical stress. The rotor an...

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Main Authors: Kenneth E. Okedu, Hind F. A. Barghash
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-01-01
Series:Frontiers in Energy Research
Subjects:
doubly fed induction generator
phase lock loop
braking resistor
wind energy
stability
bipolar transistors
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2020.620277/full
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spelling doaj-fd62a57e48694201b1f0acca655abe102021-05-06T11:27:02ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-01-01810.3389/fenrg.2020.620277620277Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL SchemeKenneth E. Okedu0Kenneth E. Okedu1Hind F. A. Barghash2Department of Electrical and Computer Engineering, National University of Science and Technology, Muscat, OmanDepartment of Electrical and Electronic Engineering, Kitami Institute of Technology, Hokkaido, JapanDepartment of Environmental Engineering, German University of Technology, Muscat, OmanThe major aim for achieving the successful synchronization of a wind turbine system to the grid is to mitigate electrical and mechanical stresses on the wind generator. During transient state, the gearbox, shaft, and rotor of the wind generator could be damaged due to mechanical stress. The rotor and stator windings of the wind generator, including its insulation, could be affected. This paper undertakes an extensive analysis of the effects of the excitation parameters of the power converter Insulated Gate Bipolar Transistors (IGBTs), on the transient state performance of the Doubly Fed Induction Generator (DFIG), considering different scenarios. The optimal excitation parameters of IGBTs were used for further analysis of the wind generator, considering a new Phase-Locked-Loop (PLL) scheme. The PLL computes the phase displacement of the grid required to achieve orientation and synchronization control. Consequently, it helps in preventing power system distortion due to stator-grid interphase. This paper proposes a new approach that integrates PLL control strategy and a Series Dynamic Braking Resistor (SDBR) to augment the fault ride through capability of a variable speed wind turbine that is DFIG-based. The SDBR helps the post fault recovery of the wind generator. Simulations were run in Power System Computer Aided Design and Electromagnetic Transient state Including DC (PSCAD/EMTDC) to examine severe fault conditions, and to test the robustness of the controllers employed. The results show that the proposed hybrid control strategy aids the fast recovery of the DFIG wind generator variables during fault conditions.https://www.frontiersin.org/articles/10.3389/fenrg.2020.620277/fulldoubly fed induction generatorphase lock loopbraking resistorwind energystabilitybipolar transistors
collection DOAJ
language English
format Article
sources DOAJ
author Kenneth E. Okedu
Kenneth E. Okedu
Hind F. A. Barghash
spellingShingle Kenneth E. Okedu
Kenneth E. Okedu
Hind F. A. Barghash
Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme
Frontiers in Energy Research
doubly fed induction generator
phase lock loop
braking resistor
wind energy
stability
bipolar transistors
author_facet Kenneth E. Okedu
Kenneth E. Okedu
Hind F. A. Barghash
author_sort Kenneth E. Okedu
title Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme
title_short Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme
title_full Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme
title_fullStr Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme
title_full_unstemmed Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme
title_sort enhancing the performance of dfig wind turbines considering excitation parameters of the insulated gate bipolar transistors and a new pll scheme
publisher Frontiers Media S.A.
series Frontiers in Energy Research
issn 2296-598X
publishDate 2021-01-01
description The major aim for achieving the successful synchronization of a wind turbine system to the grid is to mitigate electrical and mechanical stresses on the wind generator. During transient state, the gearbox, shaft, and rotor of the wind generator could be damaged due to mechanical stress. The rotor and stator windings of the wind generator, including its insulation, could be affected. This paper undertakes an extensive analysis of the effects of the excitation parameters of the power converter Insulated Gate Bipolar Transistors (IGBTs), on the transient state performance of the Doubly Fed Induction Generator (DFIG), considering different scenarios. The optimal excitation parameters of IGBTs were used for further analysis of the wind generator, considering a new Phase-Locked-Loop (PLL) scheme. The PLL computes the phase displacement of the grid required to achieve orientation and synchronization control. Consequently, it helps in preventing power system distortion due to stator-grid interphase. This paper proposes a new approach that integrates PLL control strategy and a Series Dynamic Braking Resistor (SDBR) to augment the fault ride through capability of a variable speed wind turbine that is DFIG-based. The SDBR helps the post fault recovery of the wind generator. Simulations were run in Power System Computer Aided Design and Electromagnetic Transient state Including DC (PSCAD/EMTDC) to examine severe fault conditions, and to test the robustness of the controllers employed. The results show that the proposed hybrid control strategy aids the fast recovery of the DFIG wind generator variables during fault conditions.
topic doubly fed induction generator
phase lock loop
braking resistor
wind energy
stability
bipolar transistors
url https://www.frontiersin.org/articles/10.3389/fenrg.2020.620277/full
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