The Research On Structure System Of High-power Wind-generator Based On Virtual Prototyping

Wind-generated electricity, as a method to maximize wind power, has always been ahot discussion and research topics.In order to obtain greater economic benefits, high-powerwind turbines generator appears particularly important. Horizontal wind turbine is the mainform up to now, which mainly includes Wind turbine, Gearbox, Generator, Speed adjustingcontroller, Direction regulator, Tower and Control system, etc. The blade technology andgear mechanism is the core technology and an important part respectively. It is veryimportant for generating large power electric energy to ensure the fault-free, stable andreliable operation of Wind turbine and Gearbox. Therefore, through analyzing andoptimizing the structure and the natural frequency of wind turbines of the single blade andthe wind turbine can made to avoid the frequency of electromagnetic interference and theoperating frequency of the generator, which is the security for wind turbine to obtainpowerful electric energy.This paper uses virtual prototyping for design and analysis of high power windgenerator wind turbine and gearbox. Firstly, the Pro/E and UG NX software arerespectively used to establish the model of gearbox and wind turbine. Secondly, the Profilisoftware is used to analyze aerodynamic characteristics of blade,and gain blade the relatedparameters about blade profile; Then, the finite element analysis software,ANSYS/Workbench,is used to do the modal and static analysis for wind turbine and asingle blade under various working conditions(include stationary and rotating), and theresults are compared each other. Finally, by means of the ADAMS software, the motion anddynamics analysis for gearbox have been done, and the motion curves are obtained andcontrasted.Through the research of this project, we obtain the motion curves of gearbox, and thenatural frequency value of the wind turbine and the blade under different conditions,Through analyzing and comparing the results, we have obtained some important results andconclusions.The results provide a effective method for making natural frequencies of thesingle blade and the wind turbine generator rotor to avoid the frequency of exciting forcesand operating，and a important reference for better understanding and optimizing thedynamic performance of the gearbox of wind turbine generator, and a important evidencefor design, manufacturing process and fault diagnosis of large wind turbine generator.