02329oam 2200421Ia 450 991069964560332120110131074729.0(CKB)5470000002404481(OCoLC)665731581(EXLCZ)99547000000240448120100927d2010 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierUser's guide to MBC3[electronic resource] multi-blade coordinate transformation code for 3-bladed wind turbines /G.S. BirGolden, CO :National Renewable Energy Laboratory,[2010]1 online resource (iv, 24 pages) digital, PDF fileNREL/TP ;500-44327Title from title screen (viewed Sept. 27, 2010)."September 2010."Includes bibliographical references (page 24).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.User's guide to MBC3 Wind turbinesMathematical modelsWind powerResearchWind turbinesMathematical models.Wind powerResearch.Bir Gunjit S1398639National Renewable Energy Laboratory (U.S.)SOESOEGPOBOOK9910699645603321User's guide to MBC33462330UNINA