Resonant vibrations resulting from the re-engineering of a constant-speed 2-bladed turbine to a variable-speed 3-bladed turbine : preprint / P.A. Fleming [and others].

Format:

• Book
• Government document

Contributor:

• Fleming, Paul A.
• National Renewable Energy Laboratory (U.S.)

Series:

• Conference paper (National Renewable Energy Laboratory (U.S.)) ; NREL/CP-5000-50009.
• NREL/CP ; 5000-50009

Language:

English

Subjects (All):

• Wind turbines--Vibration--Research.
• Frequencies of oscillating systems.

Genre:

• technical reports.
• Technical reports
• Technical reports.

Physical Description:

1 online resource (14 pages) : color illustrations.

Place of Publication:

[Golden, CO] : National Renewable Energy Laboratory, [2010]

Summary:

The CART3 (Controls Advanced Research Turbine, 3-bladed) at the National Wind Technology Center has recently been converted from a 2-bladed constant speed machine to a 3-bladed variable speed machine designed specially for controls research. The purpose of this conversion was to develop an advanced controls field-testing platform which has the more typical 3-bladed configuration. A result of this conversion was the emergence of several resonant vibrations, some of which initially prevented operation of the turbine until they could be explained and resolved. In this paper, the investigations into these vibrations are presented as "lessons-learned". Additionally, a frequency-domain technique called waterfall plotting is discussed and its usefulness in this research is illustrated.

Notes:

• Title from title screen (viewed January 17, 2011).
• "To be presented at 49th AIAA Aerospace Sciences Meeting, 2011, Orlando, Florida, January 4-7, 2011."
• "December 2010."
• Includes bibliographical references (page 14).

OCLC:

697198216