Wind Generator Machine And Key Components Of Dynamic Analysis And Research

The wind turbine is the use of wind-driven generators, large units of mechanical energy into electrical energy. After20years of development, China has been leading in the field level.UG, ANSYS, and other software dynamic analysis and research on wind power generator machine, key components, dynamic analysis methods and finite element analysis software to verify the experimental data are reasonable. Specific work content:1、The whole dynamic analysis of wind turbines. Dynamics software FAST (United States Renewable Energy Laboratory (NREL) development) degrees of freedom in the model, the establishment of FAST linearized kinetic equation, using the assumed mode method to establish the structural dynamics model of the wind power generator.2、The whole dynamic characteristics of the wind generator. Large-scale wind generator blades and the tower of flexible and constantly enhance the coupling between the structure is inevitable, and the role of the randomness of the wind speed and other environmental factors, wind energy generator structure of the dynamic response of the body systems become more complex. This section focuses on the multi-body system dynamics of the wind energy generators.3、Wind turbine blade dynamics. Wind energy turbine blade as a the slender cantilever, so you can use flexible dynamic analysis module in the ANSYS program. This module is used to calculate the alternating flexible response of the structure under load, so that the acceleration of the wind turbine blade loads due to the coupling, the deformation change at any time. Can also analyze the change with time of the force and torque of the blade root,these forces and torques as the theoretical data for further analysis of the hub.4、Wind turbine tower dynamics. Wind loads on the role of the wind turbine tower structure becomes more complex because of its variability in space and time. This part of the overall model is based on the top of the tower bottom of the freedom to consider the foundation stiffness elastic constraint model is fixed to the bottom of the top free, calculate the natural frequency and modal investigated the tower dynamic characteristics by the bottom of the tower foundation stiffness and tower head quality impact analysis of the dynamic response of the wind load on the tower, to provide a basis for further study of wind turbine tower structure.5、Wind turbine drive system dynamics.The drive system is an important part of the wind power generator, the performance of the pros and cons of wind turbines to some extent determines whether the normal operation. This section the UG, ADAMS, ANSYS,ROMAX software organic, give full play to the advantages of the software, research and design analysis of wind turbine drive system dynamics.In this paper, the machine and key components of the wind energy generators kinetic analysis in research. Modeling and dynamic analysis of wind energy generating machine, and then the key components of wind turbines, blades, towers and transmission dynamics analysis to obtain the relevant conclusions. Provides a theoretical support for the assessment of the scientific design of the wind power generator system in the future, the whole key components of the failure prediction.