A discussion of the results of the rainflow counting of a wide range of dynamics associated with the simultaneous operation of adjacent wind turbines

Conference · Thu Oct 01 00:00:00 EDT 1992

OSTI ID:7189045

Kelley, N; Desrochers, G; Tangler, J; Smith, B

The objective of this study was to provide a fatigue load comparison between two identical wind turbines employing different rotor designs. One turbine was fitted with a rotor consisting of a set of NREL (SERI) thin-airfoil blades while the other rotor included the original-equipment AeroStar blades. The data discussed are based on sample load populations derived from the rainflow cycle counting of 405, 10-minute records specifically collected over a wide range of inflow turbulence conditions. The results have shown that the statistical structure of the alternating load cycles on both turbines can be described as a mixture of three stochastic processes. We noted a high degree of load distribution similarity between the two turbines, with the differences attributable to either rotor weight or swept area.

• Research Organization: National Renewable Energy Lab., Golden, CO (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 7189045
• Report Number(s): NREL/TP-442-5159; CONF-921049-2; ON: DE93000016
• Resource Relation: Conference: Windpower '92, Seattle, WA (United States), 19-23 Oct 1992
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
42 ENGINEERING
WIND TURBINES
MATERIALS TESTING
AERODYNAMICS
DISTRIBUTION
FATIGUE
GAUSSIAN PROCESSES
ROTORS
STATISTICS
TURBULENT FLOW
WIND LOADS
DYNAMIC LOADS
EQUIPMENT
FLUID FLOW
FLUID MECHANICS
MACHINERY
MATHEMATICS
MECHANICAL PROPERTIES
MECHANICS
TESTING
TURBINES
TURBOMACHINERY
170602* - Wind Energy Engineering- Turbine Design & Operation
420500 - Engineering- Materials Testing