Development, Field Testing, and Evaluation of LIDAR Assisted Controls

Conference · Mon May 18 04:00:00 EDT 2015

OSTI ID:1239650

Ehrmann, Robert ^[1]; Wang, Na ^[2]; Scholbrock, Andrew ^[2]; Guadayol, Marc ^[3]; Wright, Alan ^[2]; Arora, Dhiraj ^[3]

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1. Asltom Power Inc.; Alstom Poer Inc.
2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
3. Alstom Power Inc.

Typical wind turbines utilize feedback controllers which have a delayed response to winds peed disturbances. A nacelle mounted LIght Detection and Ranging(LIDAR) system measures a preview wind signal in front of the turbine. This can be included in a feed-forward control system, improving turbine pitch command for incoming variations in wind speed. The overall aim is reduced blade and tower fatigue, and potentially improved annual energy production. To be successful, the LIDAR must yield accurate wind speed measurements. Therefore, a LIDAR was characterized against a nearby met tower and turbine wind speed estimator. Results indicate good correlation between measurements.

• Research Organization: Alstom Power Inc., Windsor, CT (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
• DOE Contract Number: EE0005494
• OSTI ID: 1239650
• Report Number(s): DOE-Alstom--0005494-1
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LIDAR characterization
feed-forward control system
feedback controllers
met tower
nacelle mounted LIDAR
reduce blade and tower fatigue