Identification of the Wind Turbine Model with MR Damper Based Tuned Vibration Absorber

The paper concerns laboratory model of a wind turbine tower-nacelle system equipped with magnetorheological (MR) damper based tuned vibration absorber (TVA). The objective of the paper is the identification of the regarded system for the control purposes, i.e. precise representation of the dynamics of the tower-nacelle structure with MR TVA for the assumed model complexity. The laboratory test rig of the considered physical system is referenced. Three stage identification methodology and tests are discussed. The experimental and simulation time and frequency responses are compared. This paper is a second section of a two-part model identification study.