Results 21 to 30 of about 56,466 (281)

Short-Term Frequency Response of a DFIG-Based Wind Turbine Generator for Rapid Frequency Stabilization

Energies, 2017
This paper proposes a short-term frequency-response scheme of a doubly-fed induction generator (DFIG)-based wind turbine generator (WTG) for improving rotor speed recovery and frequency nadir.
Dejian Yang, Moses Kang, Eduard Muljadi, Wenzhong Gao, Junhee Hong, Jaeseok Choi, Yong Cheol Kang   +6 more
doaj   +1 more source

Inertia and Droop Frequency Control Strategy of Doubly-Fed Induction Generator Based on Rotor Kinetic Energy and Supercapacitor

Energies, 2020
The large-scale application of wind power eases the shortage of conventional energy, but it also brings great hidden danger to the stability and security of the power grid because wind power has no ability for frequency regulation.
Xiangwu Yan, Xuewei Sun
doaj   +1 more source

Simulation of wind turbine wake interaction using the vorticity transport model [PDF]

, 2010
The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin, Brown, Brown, Builtjes, Crespo, Fletcher, Green, Kenyon, Lissaman, Milborrow, Newman, Sforza, Toro, Troldborg, Vermeer, Voutsinas   +15 more
core   +1 more source

Voltage dip generator for testing wind turbines connected to electrical networks [PDF]

, 2011
This paper describes a new voltage dip generator that allows the shape of the time profile of the voltage generated to be configured. The use of this device as a tool to test the fault ride-through capability of wind turbines connected to the electricity
Abbesa, Atienza, C. Veganzones, C.A. Platero, D. Ramirez, F. Blazquez, F. Gordillo, Flannery, Garnacho, J. Merino, J.A. Sanchez, J.R. Arribas, Ledesma, N. Herrero, Rahimi, Rodriguez, S. Martinez, Sanchez, Santos-Martin, Slemon, Tsili, Veganzones   +21 more
core   +2 more sources

Research on Rotational Resistance Moment of Rotary Energy Recovery Device

E3S Web of Conferences, 2018
The effects of operational conditions on the resistance moment of a rotary energy recovery device have been systematically investigated through the computational fluid dynamics in this paper.
GUO Ang, HUANG Zuo-dong, DING Zai-ran, SHI Yi, JIAO Lei, LENG Jian-xing   +5 more
doaj   +1 more source

The LQG/LTR control method for turboshaft engine with variable rotor speed based on torsional vibration suppression

Journal of Low Frequency Noise, Vibration and Active Control, 2020
In order to realize the rapid response control for turboshaft engine during the process of variable rotor speed, the linear quadratic Gaussian with loop transfer recovery (LQG/LTR) control method for turboshaft engine based on torsional vibration ...
Yong Wang, Qiangang Zheng, Haibo Zhang, Mingyang Chen   +3 more
doaj   +1 more source

Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization

Frontiers in Energy Research, 2021
With the increasing penetration of renewable energy generation, the frequency stability of a power grid can be significantly threatened. A doubly-fed induction generator (DFIG) participates in the frequency support of a power grid by releasing kinetic ...
Yien Xu, Hongmei Wang
doaj   +1 more source

Power curve and wake analyses of the Vestas multi-rotor demonstrator [PDF]

Wind Energy Science, 2019
Numerical simulations of the Vestas multi-rotor demonstrator (4R-V29) are compared with field measurements of power performance and remote sensing measurements of the wake deficit from a short-range WindScanner lidar system.
M. P. van der Laan, S. J. Andersen, N. Ramos García, N. Angelou, G. R. Pirrung, S. Ott, M. Sjöholm, K. H. Sørensen, J. X. Vianna Neto, M. Kelly, T. K. Mikkelsen, G. C. Larsen   +11 more
doaj   +1 more source

Two-stage frequency regulation for wind turbines with adaptive coefficients and optimized power trajectory

International Journal of Electrical Power & Energy Systems
Wind turbines support grid frequency by rotor decelerating and then accelerating, but the instant power imbalance caused by rotor speed recovery may lead to a secondary frequency drop.
Zhiting Zhou, Hui Li, Jie Zheng, Hongtao Tan, Xuewei Xiang, Ran Yao   +5 more
doaj   +1 more source

Quantitative Control Approach for Wind Turbine Generators to Provide Fast Frequency Response with Guarantee of Rotor Security

, 2017
Wind generation is expected to reach substantially higher levels of penetration in the near future. With the converter interface, the rotor inertia of doubly-fed induction generator (DFIG) based wind turbine generator is effectively decoupled from the ...
Tomsovic, Kevin, Wang, Siqi
core   +1 more source