User's guide to MBC3
Subtitle: multi-blade coordinate transformation code for 3-bladed wind turbines
By: G.S. Bir
Contributors: National Renewable Energy Laboratory (U.S.)
Series: NREL/TP -- 500-44327; NREL/TP -- 500-44327.
Publisher: National Renewable Energy Laboratory
Published: 2010
Place of publication: Golden, CO
Language: eng
Format: [electronic resource] :
Number of pages: 24
Subjects: Wind turbines; Mathematical models; Wind power; Research
Description: The dynamics of wind turbine rotor blades are conventionally expressed in rotating frames attached to the individual blades. The tower-nacelle subsystem though, sees the combined effect of all rotor blades, not the individual blades. Also, the rotor responds as a whole to excitations such as aerodynamic gusts, control inputs, and tower-nacelle motion--all of which occur in a nonrotating frame. Multi-blade coordinate transformation (MBC) helps integrate the dynamics of individual blades and express them in a fixed (nonrotating) frame. MBC involves two steps: transforming the rotating degrees of freedom and transforming the equations of motion. Reference 1 details the MBC operation. This guide summarizes the MBC concept and underlying transformations. This guide also explains how to use MBC3, a MATLAB-based script we developed to perform multi-blade coordinate transformation of system matrices for three-bladed wind turbines.
Notes: Title from title screen (viewed Sept. 27, 2010).

"September 2010."

Includes bibliographical references (p. 24).