SciTech Connect

Title: Building State-of-the-Art Wind Technology Testing Facilities (Fact Sheet)

Building State-of-the-Art Wind Technology Testing Facilities (Fact Sheet) The new Wind Technology Test Center is the only facility in the nation capable of testing wind turbine blades up to 90 meters in length. A critical factor to wind turbine design and development is the ability to test new designs, components, and materials. In addition, wind turbine blade manufacturers are required to test their blades as part of the turbine certification process. The National Renewable Energy Laboratory (NREL) partnered with the U.S. Department of Energy (DOE) Wind Program and the Massachusetts Clean Energy Center (MassCEC) to design, construct, and operate the Wind Technology Center (WTTC) in Boston, Massachusetts. The WTTC offers a full suite of certification tests for turbine blades up to 90 meters in length. NREL worked closely with MTS Systems Corporation to develop the novel large-scale test systems needed to conduct the static and fatigue tests required for certification. Static tests pull wind turbine blades horizontally and vertically to measure blade deflection and strains. Fatigue tests cycle the blades millions of times to simulate what a blade goes through in its lifetime on a wind turbine. For static testing, the WTTC is equipped with servo-hydraulic winches and cylinders that are connected to the blade through cables to more » apply up to an 84-mega Newton meter maximum static bending moment. For fatigue testing, MTS developed a commercial version of NREL's patented resonant excitation system with hydraulic cylinders that actuate linear moving masses on the blade at one or more locations. This system applies up to a 21-meter tip-to-tip fatigue test tip displacement to generate 20-plus years of cyclic field loads in a matter of months. NREL also developed and supplied the WTTC with an advanced data acquisition system capable of measuring and recording hundreds of data channels at very fast sampling rates while communicating with test control systems. « less
Publication Date:
OSTI Identifier:1038332
Report Number(s):NREL/FS-5000-53581
TRN: US201208%%600
DOE Contract Number:AC36-08GO28308
Resource Type:Technical Report
Resource Relation:Related Information: NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)
Research Org:National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:USDOE Office of Energy Efficiency and Renewable Energy Wind and Water Power Program
Country of Publication:United States
Language:English
Subject: 14 SOLAR ENERGY; 17 WIND ENERGY; BENDING; CABLES; CONTROL SYSTEMS; DATA ACQUISITION SYSTEMS; DESIGN; EXCITATION SYSTEMS; HYDRAULICS; LIFETIME; MANUFACTURERS; NATIONAL RENEWABLE ENERGY LABORATORY; SAMPLING; STRAINS; TESTING; TURBINE BLADES; TURBINES; WINCHES; WIND TURBINES NWTC; WIND; WTTC; WIND TURBINE TESTING; Wind Energy