| China is located in the northern hemisphere.The wind resources in the Qinghai-Tibet Plateau and Inner Mongolia Plateau are inexhaustible,so the advantages of wind turbines using wind power generation are highlighted.Wind power generation plays an important role in the promotion of new energy policies such as energy conservation and emission reduction,coal to electricity,and electric vehicles.With the development of wind power technology,horizontal axis wind power generation is not optimistic due to the huge noise,large volume structure,high cost and complicated control operation.Compared with the vertical axis,its small size,suitable power generation efficiency and low cost.The advantages of simple control are favored by researchers at home and abroad.The development of direct drive vertical axis wind power generation technology meets the requirements of distributed new energy power generation technology.Switched reluctance generators will become one of the main generators of direct drive vertical axis wind power generation due to its unique double convex structure,high performance operation characteristics,excellent MPPT adjustment characteristics and low cost.The research focus of this project is the design and optimization of a 20 kW direct drive vertical axis switched reluctance power generation system.Firstly,the basic principle of direct drive vertical axis wind turbine,the structure of switched reluctance motor system and the basic principle of switched reluctance motor are discussed.Secondly,according to the requirements of the project,the direct drive vertical axis switched reluctance wind turbine is used.design.The structural parameters of the wind wheel are obtained through theoretical calculation,and the wind wheel design is completed.The initial value of the motor structure parameters is calculated according to the motor theory,and the key parameters of the switched reluctance motor(slot full rate,phase effective current,phase current)are calculated by reasonable optimization method.Density,rated speed,efficiency and rated torque)Complete simulation optimization calculations to optimize motor performance.The paper validates the performance of the designed 20 kW direct drive vertical axis switched reluctance generator,which provides a theoretical basis for the subsequent physical verification. |
