Dynamic Response Analysis Of Wind Turbine Based On RecurDyn And Simulink Co-simulation

Large-scale wind turbines operate under complex working conditions,taking into account the impact of various complex environments on the structure of wind turbine blades and the entire machine,as well as the aeroelastic coupling analys is under structural reactions,and the impact of structural flutter deformation.Accurate analysis is very difficult,and it is of great significance and value to study and establish a reliable and effective wind turbine simulation analysis model.This paper takes the megawatt wind turbine as the research object,modelling the rigid-flexible coupling mult i-body model of the wind turbine in Recur Dyn software,and uses the spherical hinge optimized super unit method to establish the large wind turbine blade,tower and complete machine model.The wind turbine model is pre-analyzed and eigenvalue analyzed,and the frequency and mode shape of the wind turbine blades and the whole wind turbine are analyzed,which reveals the rationality and accuracy of the wind turbine modeling.A multi-body model consid ering the interaction of soil and structure is established at the root of the tower to simulate the tower foundation structure of the wind turbine under the seismic load.Set up a simulation control mod ule in Matlab/Simuink software.Use Ye Su momentum theo ry to build a pneumatic wind load module.Use Seismo Artif software to generate artificially simulated seismic wave acceleration,velocity and displacement time history to build a seismic load modu le.Integrate aerodynamic coupling module and ground motion load Module in simulation control design.Using Recur Dyn and Simulink co-simulation technology to realize the synchronous control and coupling calculation of the structure model and the load model,simulate the dynamic response of the wind turbine under complex working conditions.Analyze the aeroelastic characteristics and power characteristics of the complete wind turbine model,and reveal the complete wind turbine Feedback of structural movement and deformation after a certain aerodynamic load and analys is of its parameter influence law.The structure model built in this paper adopts the mult i-body model of the wind turbine optimized by the spherical hinge,which better simulates the torsional deformation characteristics of the wind turbine model struct ure.Recur Dyn software with relative coordinate system motion equation theory and fully recursive algorithm and Simuink software with mult iple efficient solvers will be used for co-simulation to improve the modeling speed and analysis efficiency of complex large-scale large-deformation mult i-body dynamics problems.The simulation results reveal the dynamic response of the wind turbine under the combined action of earthquake and wind load,and provide an effective reference for the fatigue strength analysis of the wind turbine load.The research work puts forward feasible numerical analys is methods for the dynamic response research of high-power wind turbines under complex working conditions.