Simulation System Of Wind Power Based On Virtual Reality Technology

At present,with the country's emphasis on the wind power industry,the relevant policies have been promulgated successively,and wind power has achieved rapid growth.It has become the third largest source of electricity after thermal power and hydropower in China,making the development scale of the power industry to a new level.However,with the rapid development of wind power generation,the problem of shortage of working talents with wind farm professional skills is getting worse.Therefore,it is imperative to quickly and effectively improve the ability of wind power workers to operate and repair wind power equipment.In the view of this present situation,this thesis targets on the research of wind power simulation system on virtual reality technology,which focuses on the object of actual wind farm,and combines virtual reality technology and wind power simulation technology together.This study contains the structure of the virtual simulation system,the construction of the wind power simulation model,the construction of the virtual scene and so on.The main research contents of the paper are as follows:Firstly,this thesis takes doubly-fed wind power generation as the research object,and its operation characteristics are elaborated.The working principle of the main equipment of the doubly-fed wind turbine is analyzed.And the math models of wind speed,wind turbine,drive shaft and generator are established.On this basis,the realization principle of maximum wind energy tracking control and pitch angle control are analyzed,and the control block diagram of the controller is given.At the same time,the mathematical model of rotor-side stator flux linkage control is established,and the rotor-side vector control is realized by double closed-loop control.Secondly,the simulation models of the main equipment and control system are built in Matlab/Simulink.The model includes wind speed,wind turbine,transmission gear,generator,control system,etc.The dynamic simulation of the unit operation is carried out.By changing the wind speed,the three operating states of the synchronous operation,synchronous operation and super-synchronous operation of the generator set are reflected.At the same time,the simulation analysis of the fixed pitch and pitch control is carried out.The simulation results show that the system can achieve the maximum wind energy tracking below the rated wind speed,the pitch control above the rated wind speed,and the decoupling control of active and reactive power.It proves the correctness and effectiveness of the model,and lays a good foundation for building simulation models on the functional simulation system and providing data support for the virtual simulation system.Finally,this paper combines virtual reality technology and the actual environment of wind farm to complete the 3D modeling and model optimization of wind power equipment.It imports the fan model into Unity 3D for setting,adds environmental effectssuch as sky,light and terrain,and completes the virtual wind power.Finally it makes visualization of the scene.At the same time,in order to improve the functionality and interactivity of the system,it uses Unity 3D technology to develop functional modules such as device disassembly,device learning,text display,scene roaming,etc,and it achieves training for students.