scholarly journals Upstream Measurements of Wind Profiles with Doppler Lidar for Improved Wind Energy Integration

2012 ◽  
Author(s):  
Rodney Frehlich
Keyword(s):  
Wind Energy ◽  
Doppler Lidar ◽  
Energy Integration ◽  
Wind Energy Integration ◽  
Wind Profiles

Impact of Wind Energy Integration in a Distribution Electric Network

2005 ◽  
Vol 1 (03) ◽  
pp. 93-98
Author(s):  
V. Rogez ◽  
◽  
H. Roisse ◽  
V. Autier ◽  
X. Guillaud
Keyword(s):  
Wind Energy ◽  
Energy Integration ◽  
Electric Network ◽  
Wind Energy Integration

scholarly journals A robust composite wide area control of a DFIG wind energy system for damping inter-area oscillations

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Ayyarao S. L. V. Tummala
Keyword(s):  
Wind Energy ◽  
Sliding Mode ◽  
Energy System ◽  
Wide Area ◽  
Continuous Control ◽  
Energy Integration ◽  
Wind Energy System ◽  
Wind Energy Integration ◽  
Twisting Algorithm ◽  
Wide Area Control

AbstractThis paper presents a novel composite wide area control of a DFIG wind energy system which combines the Robust Exact Differentiator (RED) and Discontinuous Integral (DI) control to damp out inter-area oscillations. RED generates the real-time differentiation of a relative speed signal in a noisy environment while DI control, an extension to a twisting algorithm and PID control, develops a continuous control signal and hence reduces chattering. The proposed control is robust to disturbances and can enhance the overall stability of the system. The proposed composite sliding mode control is evaluated using a modified benchmark two-area power system model with wind energy integration. Simulation results under various operating scenarios show the efficacy of the proposed approach.

scholarly journals A Review of Progress and Applications of Pulsed Doppler Wind LiDARs

2019 ◽  
Vol 11 (21) ◽  
pp. 2522 ◽  
Author(s):  
Zhengliang Liu ◽  
Janet F. Barlow ◽  
Pak-Wai Chan ◽  
Jimmy Chi Hung Fung ◽  
Yuguo Li ◽  
...  
Keyword(s):  
Wind Energy ◽  
Numerical Models ◽  
Real Life ◽  
Doppler Lidar ◽  
Promising Alternative ◽  
3 Dimensional ◽  
In Situ Techniques ◽  
Energy Assessment ◽  
Wind Shears ◽  
Wind Profiles

Doppler wind LiDAR (Light Detection And Ranging) makes use of the principle of optical Doppler shift between the reference and backscattered radiations to measure radial velocities at distances up to several kilometers above the ground. Such instruments promise some advantages, including its large scan volume, movability and provision of 3-dimensional wind measurements, as well as its relatively higher temporal and spatial resolution comparing with other measurement devices. In recent decades, Doppler LiDARs developed by scientific institutes and commercial companies have been well adopted in several real-life applications. Doppler LiDARs are installed in about a dozen airports to study aircraft-induced vortices and detect wind shears. In the wind energy industry, the Doppler LiDAR technique provides a promising alternative to in-situ techniques in wind energy assessment, turbine wake analysis and turbine control. Doppler LiDARs have also been applied in meteorological studies, such as observing boundary layers and tracking tropical cyclones. These applications demonstrate the capability of Doppler LiDARs for measuring backscatter coefficients and wind profiles. In addition, Doppler LiDAR measurements show considerable potential for validating and improving numerical models. It is expected that future development of the Doppler LiDAR technique and data processing algorithms will provide accurate measurements with high spatial and temporal resolutions under different environmental conditions.

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