Design And Optimization Of 750W 12/8 Pole Vertical Axis Switched Reluctance Wind Generator

China has an absolute advantage in total available wind energy due to its geographical location and vast territory.As the government vigorously advocating energy conservation,emission reduction,and launching a series of energy policies such as coal to electricity and electric vehicles,wind power has gradually evolved from centralized to distributed.As wind power technologies progress,compared with horizontal axis wind turbines which have huge noise,large volume structure,high cost,and complicated control operations,vertical axis wind turbines could better meet the requirements of distributed new energy generation technology because of its small size,high power generation efficiency,low cost and simple control.With the simple and sturdy structure,low cost features,Switched Reluctance Generator(SRG)will become one of the main generators of direct-drive vertical axis wind power generation.Therefore,it is of great significance to study the efficient and robust switched reluctance generators.This paper aims at low-cost wind power systems,This article takes the switched reluctance generator as the research object.Aiming at the requirements of wind power system for efficiency and stability and applying the optimization design concept of modern motors to optimize the design from the perspective of electromagnetic and structure,a prototype of a switched reluctance wind turbine with a power of 750 W is designed.the modern motor optimization design concept is applied to optimize the design from the electromagnetic and structural perspective.A prototype of a switched reluctance wind turbine with a power of 750 W was designed.This prototype is used to explore the design and optimization of switched reluctance wind turbines,and the rationality and feasibility of the design scheme can be verified through simulation.Firstly,the related principles of SRG and the direct-drive vertical axis wind turbine are introduced.Secondly,according to the requirements of the project,a direct-drive vertical axis switched reluctance wind turbine is designed.The structural parameters of the wind turbine were obtained by theoretical calculations,and the design and optimization of the wind turbine are completed;Based on modern motor design theory,the preliminary calculation of the motor size is carried out through calculations,which are combined with empirical data and analogy.Using reasonable optimization methods,the key parameters(slot full rate,phase effective current,phase current density,rated speed,efficiency and rated torque)of the switched reluctance motor are simulated and optimized.The RMxprtand Maxwell modules in Ansoft software are used for parameter optimization and finite element simulation analysis.The Matlab/ Simulink software is used to build the switched reluctance wind power nonlinear modelling system.Simulation results confirm the reliability,and provide a theoretical basis for subsequent physical verification.