Development Of Digital Design Platform For Driving System Of Wind Turbine

With the increasing depletion of non-renewable resources such as coal,oil and environmental pollution,renewable clean energy such as wind energy and solar energy has been paid more and more attention.Driving system is a key component of large-scale wind turbine system.Its performance directly determines the reliability,stability and safety of the unit.At present,the software used in the wind power industry mostly depends on imports,and the design efficiency of the spindle drive system is low and the cycle is long.Therefore,how to improve the design efficiency of wind power components and develop a wind power software platform with independent property rights becomes a problem to be solved.Firstly,the development of wind power market is introduced.At the same time,the working principle of different types of generating units and the structural characteristics of the current spindle drive system are expounded.The research of scholars at home and abroad is analyzed.In order to construct the core function module of the platform,the mechanical model of the shafting system is abstracted and simplified based on the typical shafting structure composed of double row tapered and cylindrical roller bearings and the spindle.Driven by the mechanical model,the optimization design model of shafting system is established.In order to meet the requirements of modules in the software platform,single-objective optimization and multi-objective optimization are set up,and genetic algorithm and sequential quadratic programming are used as the optimization algorithm.Usually,performance calculation is needed after bearing structure design.Bearing performance mainly includes life and contact stress.The mathematical model of bearing performance verification is established,based on ISO281 standard and L-P theory as the standard basis of life calculation;the finite line contact between cylinder and tapered roller is processed,and the calculation of contact stress is transformed into optimization problem,and the basic particle swarm optimization algorithm is used to solve the problem.Through the analysis of software architecture patterns,B/S architecture pattern is adopted,and the relationship between business processes and modules is divided.According to the functional requirements,the user authority standard is divided and the user's operation process in the software platform is determined.On this basis,the prototype of the software is designed to simulate the operation process.