NDLI: Synchronizing stability of DFIG-based wind turbines attached to weak AC grid

Content Provider	IEEE Xplore Digital Library
Author	Hu, Qi Hu, Jiabing Yuan, Hao Tang, Haiyan Li, Yan
Copyright Year	2014
Description	Author affiliation: China Electric Power Research Institute, Beijing 100192, China (Tang, Haiyan; Li, Yan) \|\| State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China (Hu, Qi; Hu, Jiabing; Yuan, Hao)
Abstract	This paper unfolds the issue of synchronizing stability in doubly fed induction generator (DFIG)-based wind turbines when connected to weak AC grid. In weak AC grid, the turbine's terminal voltage vector (both amplitude and phase angle) is significantly influenced by the vectors of the grid voltage and DFIG's internal potential that is contributed by both stator and grid-side converter (GSC). Currently, most developed DFIGs synchronize with grid by phase locked loop (PLL) which generates the phase angle by detecting terminal voltage. The complex dynamics of terminal voltage may deteriorate the performance of PLL and destabilize it under large-signal disturbance, which may lead to synchronizing instability of the DFIG system. In this paper, a DFIG-based wind turbine connected to infinite bus via high grid impedance is studied. The structure of PLL in weak AC grid is given and the equal-area method is adopted to investigate the large-signal stability of it conceptually. Simulation results verify the loss of synchronizing stability of DFIG.
Starting Page	2618
Ending Page	2624
File Size	385686
Page Count	7
File Format	PDF
ISBN	9781479951628
DOI	10.1109/ICEMS.2014.7013943
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phase locked loops Stability analysis Power system stability Damping Wind turbines Potential energy Vectors weak AC grid equal-area method large-signal stability phase locked loop (PLL) synchronizing stability
Content Type	Text
Resource Type	Article

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Stability of DC-link voltage affected by phase-locked loop for DFIG-based wind turbine connected to a weak AC system

Virtual Synchronous Control for Grid-Connected DFIG-Based Wind Turbines

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Stability of DC-link voltage as affected by phase locked loop in VSC when attached to weak grid

Reduced-order modeling of DFIG-based wind turbine connected into weak AC grid based on electromechanical time scale

Providing inertial support from wind turbines by adjusting phase-locked loop response

Impact of DFIG with phase lock loop dynamics on power systems small signal stability

Analysis, comparison and performance evaluation of wind turbine grid synchronizing methods

Concerns to the emerging grid codes for wind turbines' LVRT in weak AC grid

Synchronizing stability of DFIG-based wind turbines attached to weak AC grid

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