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Enhanced fault diagnosis of DFIG converter systems [PDF]
2019 54th International Universities Power Engineering Conference (UPEC), 2019 The converter is a crucial part of the doubly fed induction generator (DFIG) wind energy conversion system (WECS). Breakdown of the converter will lead to huge economic loss; this is relating to the downtime of the converter that will shut down the whole turbine-generator system and curtail the energy production.
Aboushady, Ahmed A. +2 more
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Power systems with high renewable energy sources: A review of inertia and frequency control strategies over time [PDF]
, 2020 Traditionally, inertia in power systems has been determined by considering all the rotating masses directly connected to the grid. During the last decade, the integration of renewable energy sources, mainly photovoltaic installations and wind power ...
Fernández Guillamón, Ana +3 more
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Control of DFIG based wind generation systems under unbalanced network supply [PDF]
, 2007 This paper develops a dynamic model and control scheme for DFIG systems to improve the performance and stability under unbalanced grid conditions. A dynamic DFIG model containing the positive and negative sequence components is presented using stator ...
Wang, Yi, Xu, L.
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Small-Signal Modelling and Analysis of Doubly-Fed Induction Generators in Wind Power Applications [PDF]
, 2008 The worldwide demand for more diverse and greener energy supply has had a significant impact on the development of wind energy in the last decades. From 2 GW in 1990, the global installed capacity has now reached about 100 GW and is estimated to grow ...
Mei, Francoise, Mei, Francoise
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The Journal of Engineering, 2019 The doubly fed induction generator (DFIG) has become increasingly popular for variable speed wind turbines because of the lower power electronics converter rating required. However, the small air gap of a DFIG causes it to be vulnerable to slight misalignment of the rotor which may cause a large unbalanced magnetic pull (UMP) to be exerted on the ...
Hawwooi Chuan +2 more
openaire +2 more sources
Impedance-Based High Frequency Resonance Analysis of DFIG System in Weak Grids [PDF]
, 2017 The impedance-based model of Doubly Fed Induction Generator (DFIG) systems, including the rotor part (Rotor Side Converter (RSC) and induction machine), and the grid part (Grid Side Converter (GSC) and its output filter), has been developed for analysis ...
Blaabjerg, Frede +2 more
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Analysis and Comparison of High Frequency Resonance in Small and Large Scale DFIG System [PDF]
, 2016 When connected to a parallel compensated weak grid network, both the small and large power scale Doubly Fed Induction Generator (DFIG) system may suffer high frequency resonance (HFR) due to the impedance interaction between the DFIG system and the ...
Blaabjerg, Frede +2 more
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Impact of hybrid renewable energy systems on short circuit levels in distribution networks [PDF]
, 2014 The effects of the distributed generation can be classified as environmental, technical and economical effects. It is playing a very vital role for improving the voltage profiles in electrical power systems.
Afifi, SN, Darwish, MK
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Fast Coordinated Control of DFIG Wind Turbine Generators for Low and High Voltage Ride-Through [PDF]
, 2014 This paper presents a fast coordinated control scheme of the rotor side converter (RSC), the Direct Current (DC) chopper and the grid side converter (GSC) of doubly fed induction generator (DFIG) wind turbine generators (WTGs) to improve the low voltage ...
Ackermann +7 more
core +2 more sources
Effects of POD control on a DFIG wind turbine structural system [PDF]
, 2020 This paper investigates the effects power oscillation damping (POD) controller could have on a wind turbine structural system. Most of the published work in this area has been done using relatively simple aerodynamic and structural models of a wind ...
Baloch, Shurooque +6 more
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