Results 31 to 40 of about 313 (109)

Testing Requirements and Control Strategies of Next- Generation Grid Emulator: A Review [PDF]

open access: yes, 2022
The power-electronic-based grid emulator has been widely used for grid-code compliance testing of wind turbines (WTs). To accommodate the increasing voltage and power levels of WTs, the modular multilevel converter (MMC) emerges as a promising approach ...
Bak-Jensen, Birgitte   +6 more
core   +2 more sources

3-Phase 4-wire matrix converter-based voltage sag/ swell generator to test low-voltage ride through in wind energy conversion systems [PDF]

open access: yes, 2014
The high penetration of energy from wind energy conversion systems (WECSs) can have a significant influence on the stability, power quality and reliability of power systems.
Cardenas R.   +7 more
core   +2 more sources

Control of wind energy conversion systems based on the Modular Multilevel Matrix converter [PDF]

open access: yes, 2017
The nominal power of single Wind Energy Conversion Systems (WECS) has been steadily growing, reaching power ratings close to 10MW. In the power conversion stage, medium-voltage power converters are replacing the conventional low-voltage back-to-back ...
Cardenas, Roberto   +6 more
core   +2 more sources

Modelo simplificado de generador basado en inversores para estudios de protecciones y estabilidad de corto plazo en resolución de transitorios electromagnéticos [PDF]

open access: yes, 2022
The new dynamics of inverter-based generation (IBG) and the lack of accurate models jeopardize the safety of power systems. Additionally, most of the detailed models for electromagnetic transients (EMT) from manufacturers are black boxes. For this reason,
Agudelo Zapata, Laura   +3 more
core   +2 more sources

Modeling and Stress Analysis of Doubly-Fed Induction Generator during Grid Voltage Swell [PDF]

open access: yes, 2016
The Doubly-Fed Induction Generator (DFIG) based wind turbine system is presently dominant in the wind turbine market. Due to heavy load switch-off and faults in the power grid, voltage swells may occur and this phenomenon is currently given sufficient ...
Blaabjerg, Frede   +2 more
core   +1 more source

Techniques for Ensuring Fault Ride-Through Capability of Grid Connected DFIG-Based Wind Turbine Systems: A Review [PDF]

open access: yes, 2021
Renewable energy sources (RES) are being integrated to electrical grid to complement the conventional sources to meet up with global electrical energy demand.
Abubakar, A.S., Shehu, A.F., Shuaibu, M.
core   +2 more sources

LVRT and HVRT control strategies of doubly- fed induction generator [PDF]

open access: yes, 2018
The Doubly Fed Induction Generator (DFIG) has a high sensitivity to the Grid Faults (GFs), which can cause many problems on the power quality and the production continuity.
El Karkri, Yassir   +3 more
core   +3 more sources

Fault Ride-Through Control Strategy for Variable Speed Pumped Storage Unit with Full-Size Converter

open access: yesApplied Sciences
Fault ride-through is a prerequisite for ensuring continuous operation of a variable-speed pumped storage unit with a full-size converter (FSC-VSPU) and providing support for the renewable energy and power grid.
Huabo Shi   +7 more
doaj   +1 more source

Effect of Series Active Voltage Conditioners on Modernized Grid

open access: yes, 2015
Modernized “Smart” grids incorporate renewable energy sources on a widespread scale. Foreseen expansion in integrating more renewables is driven by global CO₂ emission concerns and depletion of fossil fuels.
Ahmed, Mostafa Ahmed Nazih
core   +2 more sources

Application of UPFC to Improve the FRT Capability of Wind Turbine Generator [PDF]

open access: yes, 2013
Variable speed wind turbine generators installation has been significantly increased worldwide in the last few years. Faults at the grid side may call for the disconnection of the wind turbine from the grid as under such events, wind turbine generator ...
Abu-Siada, Ahmed   +2 more
core   +1 more source

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